turlock irrigation district - solar rebate program

8/9/2019 Turlock Irrigation District - Solar Rebate Program

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Contents

Chapter 1. Introduction ............................................................................................................ 3

A. Purpose ............................................................................................................................................... 3

B. Program Overview ............................................................................................................................. 3

C. Summary of Program Requirements for All Project Types......................................................... 5

D. Flow Charts of Solar Electric Programs......................................................................................... 7

E. Renewable Energy Credits/Certificates ....................................................................................... 11

Chapter 2. Program Eligibility Requirements ........................................................................11

A. System Size and Ownership ......................................................................................................... 11

B. Energy Efficiency ............................................................................................................................. 11

C. Grid Interconnection ....................................................................................................................... 14

D. System Components ...................................................................................................................... 15

E. System Performance Meter ........................................................................................................... 15

F. Performance Metering and Reporting Service (PMRS)........................................................... 16

G. System Sized to Offset On-site Electricity Load ........................................................................ 16

H. System Performance ...................................................................................................................... 16

I. System Installation ............................................................................................................................ 17

J. Field Verification ............................................................................................................................... 18

K. Warranty Requirements ................................................................................................................. 18

Chapter 3. Incentive Levels and Structure ............................................................................19

A. Incentive Amounts and Decline Schedule................................................................................... 19

1. Base Incentive .............................................................................................................................. 19

2. Change in Incentive Level .......................................................................................................... 20

B. Expected Performance-Based Incentive Calculation ................................................................ 21

1. Flexible Installation (production home builders with 6+ sites)..................................... 21

C. Other Incentives May Affect the Rebate Amount....................................................................... 21

Chapter 4. Reservation Process ............................................................................................22

A. Residential Retrofit Systems.......................................................................................................... 22

B. Residential New Construction ....................................................................................................... 23

C. Non-residential Retrofit................................................................................................................... 24

D. Non-residential New Construction ................................................................................................ 24


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E. Additional Information on Reservations ....................................................................................... 25

F. Where to Send Application Package............................................................................................ 26

Chapter 5. Payment Process ..................................................................................................26

A. Payment Claim Documentation..................................................................................................... 27

1. Request for Payment Form ........................................................................................................ 27

2. Documentation Confirming Payment........................................................................................ 27

3. Final Building Permit and Final Inspection Sign Off............................................................... 27

4. Expected Performance Based Incentive (EPBI) Documentation......................................... 27

B. Assignment of Rebate Payment.................................................................................................... 27

C. Payment Claim Submission........................................................................................................... 28

D. Claiming an Incentive Payment Without a Prior Reservation................................................... 28

Appendix 1Frequently Asked Questions ...........................................................................28A. Can My Installed System Be Different Than My Reservation?................................................ 28

B. Can New PV Be Added to Existing Inverters?............................................................................ 29

C. Can I Get a Time Extension? ........................................................................................................ 29

Appendix 2System Size Justification ................................................................................29

Appendix 3Field Verification and Diagnostic Testing ......................................................30

A. Background ...................................................................................................................................... 30

B. Responsibilities ................................................................................................................................ 31

C. Field Verification and Diagnostic Testing Process..................................................................... 31

D. Relationship to Other Codes, Standards and Verification........................................................ 32

E. Field Verification Visual Inspection............................................................................................... 32

F. Shading Verification ........................................................................................................................ 35

1. Minimal Shading Criterion .......................................................................................................... 35

2. Accounting for Actual Shading................................................................................................... 36

3. Measuring Shade Impact ............................................................................................................ 36

G. Verification of System Performance............................................................................................. 371. Measuring Solar Irradiance ........................................................................................................ 38

2. Measuring Ambient Air Temperature........................................................................................ 38

3. Observing Output AC Power at the Inverter............................................................................ 39

4. Multiple Orientation Arrays ......................................................................................................... 39

Appendix 4: Interconnection .................................................................................................41


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Chapter 1. IntroductionTurlock Irrigation Districts (TID) Solar Electric Rebate Program (Program) providesfinancial incentives for the installation of grid-interconnected eligible solar photovoltaic(PV) systems. This Guidebook describes the requirements to receive incentives forinstallations within Turlock Irrigation Districts Electric service territory.

A. PurposeThe goal of this program is to support the growth and sustainability of the solar industryin California. TIDs goals include the addition of 22.5 MW of new PV generationcapacity. Along with the renewable energy generation component, this programleverages the effectiveness of energy efficiency measures.

B. Program OverviewTurlock Irrigation Districts Solar Rebate program is part of a comprehensive statewidesolar program created by Senate Bill 1. Senate Bill 1 (SB1) 1establishes three goals: 1)to install 3,000 megawatts (MW) of distributed solar PV capacity in California by the endof 2016; 2) to establish a self-sufficient solar industry in which solar energy systems area viable mainstream option in 10 years, and 3) to place solar energy systems on 50% ofnew homes in 13 years.

The TID Solar Electric Rebate program provides incentives for residential and non-residential customers for both new and existing structures. For all projects, energyefficiency, the expected performance of the system,2as well as the design andinstallation of the system, will determine the incentive amount.

For systems under 30kW, the incentive is paid once the system is installed, operationaland has met all program requirements. For all larger systems, greater than or equal to30kW, the incentive will be paid in a series of monthly payments based upon actualproduction once the system is installed, operational and has met all programrequirements.

To qualify for an incentive, both the building and the installed PV system must meet thefollowing program requirements included in this Guidebook:

The building must receive retail electricity distribution service at the site ofinstallation from Turlock Irrigation District.The solar electric system must be at least 1kW AC (alternating current) and notgreater than 1 MW AC.

1SB 1 (Murray), Chapter 132, Statutes of 2006, 4, as codified in Public Resources Code sections

2578025784.

2Expected performance is the anticipated electrical generation over the life of the system and depends on

equipment specifications including efficiency.


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The solar electric system must be interconnected to the utility distribution gridand generate electricity to offset the end-use consumers on-site electrical load.The solar electric system must be located on the same premises of the end-useconsumer where the consumers own electrical demand is located.

The solar electric system must use new certified components that have not been

previously placed in service and are on the Energy Commissions list of eligibleequipment.The solar electric system must come with a 10 year warranty to protect againstdefects and undue degradation of electrical output.The solar electric system must be installed and verified as specified in thisGuidebook.

New residential and non-residential buildings must achieve energy efficiency levelssubstantially greater than the requirements of the current Building Energy EfficiencyStandards,3Title 24, Part 6, also known as Title 24. Turlock Irrigation District placesgreat importance on ensuring that buildings which qualify for an incentive under the

Program, are as energy efficient as possible

Applicants are strongly encouraged to contact Turlock Irrigation District to inquire aboutnew construction energy efficiency rebates.

Existing buildings must also attend to energy efficiency. The minimal energy efficiencyrequirements include an energy audit or proof of Title 24 compliance, efficiencyupgrades, and potential commitments to enact the upgrades. For large non-residentialprojects, retro-commissioning may also be required.

The TID Solar Electric Rebate program may be periodically evaluated and modified to

ensure progress towards program goals. The evaluation may include:Comparing the expected energy performance of systems to the actual outputDetermining the cost-benefit profile of systems

Assessing overall program progress towards meeting the installed capacitytargets

In addition, an evaluation could include investigating risks to long-term achievement ofexpected performance levels, such as the effects of unforeseen shading or poor systemmaintenance, and identifying potential actions that would reduce those risks. Fundingfor the program is provided by Turlock Irrigation District ratepayers in accordance withthe eligibility requirements established under SB 1.

3These Standards are specified in the California Code of Regulations, Title 24, Part 6, commencing with

Section 100.


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C. Summary of Program Requirements for All Project Types

Eligible Technologies PV Solar Electric Only

Eligible Customers Turlock Irrigation District Customers receiving retail electric

distributionEligible Equipment New, not previously placed in service, listed on the EnergyCommissions Eligible Equipment List and certified by the EnergyCommission.

Incentive Level System under 30kW, a one-time payment based on expectedperformance, known as Expected Performance Based Incentive(EPBI). For systems 30+kW, a Performance Based Incentive (PBI)will be paid monthly over a 5 year period based on actual monthlykilowatt hour (kWh) production.

Incentive Adjustment Volumetric trigger. Incentive declines when pre-specified targetreserved MW volumes are reached.

Incentive Adjustments EPBIbased on geographic location, orientation, tilt, shading and

equipment.PBInone, as payments will be made based on actual kWhproduced.

Verification Systems and Energy Efficiency measures are verified.

Interconnection System is grid connected with Turlock Irrigation District.


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Additional Energy Efficiency Requirements by Project Type

Residential Retrofit Energy Efficiency Audit or Proof of Title 24 Compliancewithin the past 3 years, disclosure, possible commitment

to energy efficiency upgrades.Residential New Construction 2005 Standards:

35 percent reduction in the residential buildingscombined space heating, cooling and water heatingenergy and 40 percent in the residential buildingsspace cooling (air conditioning) energy compared tothe 2005 Title 24 Standards

2008 Standards:30 percent reduction in the residential buildingscombined space heating, cooling and water heating

energy and 30 percent in the residential buildingsspace cooling (air conditioning) energy compared tothe 2008 Title 24 Standards

Non-residential Retrofit Energy Efficiency Audit or Proof of Title 24Compliance within the past 3 years, disclosure,Energy Use Intensity Benchmark Report, Retro-commissioning (if applicable) and possiblecommitment to Energy Efficiency upgrades.

Non-residential New Construction 30 percent reduction in the buildings combinedspace heating, cooling and water heating energy

compared to the 2005 or 2008 Title 24 Standards.


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D. Flow Charts of Solar Electric Programs

(4) Proceed with installation

Once the Applicant has received the ReservationConfirmation, Applicant proceeds with purchase

and installation of the system. System must be

operational by the Reservation Expiration Date as

listed in the Reservation Confirmation Notice.

(2) Application Processing

Program Administrator evaluates the package for

completeness and eligibility.

o If incomplete, requests further informationfrom applicant

o If ineligible, sends notification of ineligibilityo If complete and eligible proceeds

Applicant Program Administrator

(1) Submit Application

Applicant Completes the Application: Residential

Retrofit and submits signed copy to Program

Administrator with the required attachments

including calculator printout and Energy Efficiency

Disclosures.

(3) Reservation Confirmation

Program Administrator sends the Reservation

ConfirmationNoticethat specifies a reservation

has been conditionally reserved.

(6) Request for Payment Form Processing

Program Administrator reviews Request for

Payment Formand documentation and conducts a

field verification visit. See Chapter 2, Section J for

inspection selection details.

o If incomplete, requests furtherinformation from applicant

o If ineligible, sends notice of ineligibilityo If approved, PA generates EPBI payment

(5) Submit Request for Payment Form and

Required Documentation

When project is operational, the Request for

Payment Form and supporting documents are

mailed to the Program Administrator on or before

the Reservation Expiration Date.

Residential Retrofit


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(1) Submit Business Solar Application

Applicant Completes the Application: Non-

Residential Retrofit and submits signed copy to

Program Administrator with the required

attachments, EPBB printout and compliance with

energy efficiency requirements..

Non-Residential Retrofit





o If ineligible, sends notification of ineligibilityo For buildings < 100,000 sq.ft., if complete

and eligible proceed to Step 7o For buildings 100,000 sq.ft, if complete

and eligible with EUI benchmark ratingbelow 75, proceeds to Step 3

o For buildings 100,000 sq.ft, ifcompleteand eligible with EUI benchmark ratingabove 75 or receiving PBI incentive,

roceeds to Ste 7

(7) Confirmed Reservation Notice



has been conditionally reserved.

(3) Retro-Commissioning Notice

Program Administrator sends a notice to Applicant

that retro-commissioning is required.

(4) Address Retro-Commissioning Requirement

Applicant conducts retro-commissioning



Payment Formand documentation and conducts a

field verification visit if selected. See Chapter 2,

Section J for inspection selection details.


o If ineligible, sends notice of ineligibilityo If approved, PA generates EPBB

payment; or if PBI project, PA enterscustomer into PBI payment process atthe specified payment period

(9) Submit Request for Payment Form


Payment and supporting documents are mailed to

the Program Administrator on or before the

Reservation Expiration Date.

(8) Proceed with Installation

Once the Applicant has received the Reservation

Confirmation, Applicant proceeds with purchase

and installation of the system. System must be


listed in the Reservation Confirmation Letter.

(5) Submit Retro-Commissioning Information

Applicant either sends documentation of

completion of retro-commissioning requirements


Program Administrator evaluates the retro-

commissioning information


o

If com lete roceeds


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o If ineligible, sends notification of ineligibilityo If complete and eligible proceeds to Step 3

or Step 7 (at discretion of PA)


(1) Submit Application

Applicant Completes the Application: Non-

Residential New Construction and submits

signed copy to Program Administrator with the

required attachments, calculator printout and proof

of energy efficiency compliance. See Chapter 2,

Section B for details.

(4) Applicant Receives the Conditional

Reservation Notice

Applicant has (3 Months) from the construction start

date to gather documentation required for next stage

(5) Step 2: Submit Proof of Project Milestone

Within 3 months of the construction start date,

Applicant submits required documentation to

Program Administrator

(6) Proof of Project Milestone Processing

Program Administrator reviews documentation:

o If incomplete, requests information fromapplicant

o If ineligible, sends notification of ineligibilityo If approved, proceeds to next stage.

(3) Conditional Reservation Notice


Confirmation that specifies a reservation number

and dollar amount for which the project has beenconditionally reserved.

(7) Reservation Confirmation



has been conditionally reserved and reservation

expiration date (18 months).

(8) Proceed with installation

Once the Applicant has received the Reservation

Confirmation notice, Applicant proceeds withinstallation of the system. System must be


listed in the Reservation Confirmation Notice.



Payment Form and documentation and conducts a

field verification visit if selected. See Chapter 2,

Section J for inspection selection details.


o If ineligible, sends notice of ineligibilityo If approved, PA generates EPBB

payment; or if PBI project, PA enterscustomer into PBI payment process atthe specified payment period

(9) Submit Request for Payment Form and

Required Documentation


Paymentand supporting documents are mailed to

the Program Administrator on or before the

Reservation Expiration Date.

Non-Residential New Construction


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E. Renewable Energy Credits/CertificatesWhen renewable electricity is generated, two commodities are created. The firstcommodity is the electricity, and the second is the renewable energy credits (alsoreferred to as renewable energy certificates, or RECs) representing the non-energy,environmental attributes associated with the electricity. For purposes of the states

Renewable Portfolio Standard, a renewable energy credit is defined to include all renewable and environmental attributes associated with the production of electricityfrom the eligible renewable energy resource...4The purchaser acknowledges that byaccepting a Solar Incentive Payment from TID, the purchaser agrees that TID maycount 100% of the Renewable Energy Credits (RECs) and associated renewableattributes generated by the PV system for reporting purposes. The RECS shall beregistered by TID in the Western Renewable Energy Generation Information System(WREGIS) to allow tracking of the Environmental Attributes of the resource byWREGIS.

Chapter 2. Program Eligibility RequirementsThis section covers eligibility requirements. Eligible PV systems must be permanentlymounted and not to a mobile structure. In addition, the building permit for the solarsystem must be approved by the building code enforcement agency before anyincentive payment is made.

A. System Size and OwnershipEligible PV systems must be at least 1 kW AC and not greater than 1 MW AC. It is theintent of the program that eligible systems remain interconnected to the utility

distribution grid and be operated at the original location for their expected economic life.

Systems must be owned by the Turlock Irrigation District customer. Power purchaseagreements (PPA) and leased systems are NOT eligible for an incentive unless the TIDcustomer receiving service at that location is a governmental agency.

Governmental agencies are the only TID customers not required to own their Solar PVSystem. For a governmental agency to receive rebate approval the contract term mustbe at least 15 years, the TID customer must be provided the option to purchase thesystem when the contract expires, and the TID solar rebate (EPBI or PBI) will only bepaid to the TID governmental agency customer.

B. Energy EfficiencyEligible systems must be installed at sites with buildings that have achieved a specifiedlevel of energy efficiency.

4Refer to definition in the Overall Program Guidebook, March 2007 edition, page 2.


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All existing buildings are required to conduct energy efficiency audits and document anyenergy efficiency measures installed or to be installed at a later date. The energyefficiency requirements for existing buildings are shown below:

Residential Retrofit Buildings

Energy Audit - The acceptable audit protocols consists of one of the following:a. On-line audit or other audit provided by Turlock Irrigation District.b. Energy audit report summary completed during the past three years by

Turlock Irrigation District or Home Energy Rating Summary (HERS) from acertified HERS rater.

Proof of Title 24 energy efficiency compliance within the past three yearsa. CF-1R used to demonstrate Title 24 Compliance 2005 or 2008 Energy

Efficiency Standards

In addition to the Energy Audit, customer must identify the type of energyassessment tool or service used and which, if any, energy efficiency improvements

will be taken. If the improvements are to be installed after the installation of the solarsystem, the customer shall disclose the date the measures are expected to beinstalled.

Non-Residential Retrofit BuildingsNon-Residential structures are divided into two categoriesbuildings under 100,000 sq.ft. and buildings 100,000+ sq. ft.

For non-residential structures under 100,000 sq. ft, the following energy efficiencyrequirements apply:

1) Energy AuditThe acceptable audit protocols consist of the following:a. On-line audit or other audit provided by Turlock Irrigation District.b. Energy audit report summary completed during the past three years by

Turlock Irrigation District or home inspection report from an independentenergy engineer.

ORProof of Title 24 energy efficiency compliance within the past 12 months

c. PERF-1 used to demonstrate Title 24 Compliance 2005 or 2008 EnergyEfficiency Standards.

2) Energy Use Intensity (EUI) Benchmark ReportBenchmarking is a process that

compares the energy use of one building to the energy use of a population ofsimilar buildings.a. Portfolio Manager5energy performance rating or equivalent energy

performance rating.

5Portfolio Manager is an Energy Starprogram that can be accessed at www.energystar.gov.


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b. Agricultural and industrial facilities which are not included within PortfolioManager or the CECs equivalent benchmark rating are not required to bebenchmarked.

c. Buildings compliant with Title 24 requirements within the last 12 monthsare exempt from benchmarking.

For buildings < 100,000 sq. ft. customer must identify the type of energyassessment tool or service used and which, if any, energy efficiencyimprovements will be taken. If the improvements are to be installed after theinstallation of the solar system, the customer shall disclose the date themeasures are expected to be installed.

For non-residential structures 100,000+ sq. ft., the following energy efficiencyrequirements apply:

1) Energy AuditThe acceptable audit protocols consist of the following:

a. On-line audit or other audit provided by Turlock Irrigation District.b. Energy audit report summary completed during the past three years byTurlock Irrigation District or inspection report from an independent energyengineer

ORProof of Title 24 energy efficiency compliance within the past 12 months

c. PERF-1 used to demonstrate Title 24 Compliance 2005 or 2008 EnergyEfficiency Standards

2) Energy Use Intensity (EUI) Benchmark ReportBenchmarking is a process thatcompares the energy use of one building to the energy use of a population ofsimilar buildings.

a. Portfolio Manager6energy performance rating or equivalent energyperformance rating.

b. Agricultural and industrial facilities which are not included within PortfolioManager or the CECs equivalent benchmark rating are not required to bebenchmarked.

c. Buildings compliant with Title 24 requirements within the last 12 monthsare exempt from benchmarking.

3) Retro-commissioningrequired for buildings with a benchmark rating less than75 and receiving an EPBI incentive. Retro-Commissioning is not required forprojects receiving a Performance Based Incentive (PBI).

a. Retro-commissioning is a process to identify how high energy useequipment is operated and maintained and to identify specificimprovements to the performance of those energy using systems.

6Portfolio Manager is an Energy Starprogram that can be accessed at www.energystar.gov.


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b. If Retro-commissioning is required, an assessment must be completedand improvements must be completed before any Solar incentive paymentis made.

c. Buildings with proof of a current Energy Star label are exempt from Retro-commissioning.

d. Buildings compliant with Title 24 requirements within the last 12 monthsare exempt from retro-commissioning.

Residential New Construction Buildings

1) 35 percent reduction in the residential buildings combined spaceheating, cooling and water heating energy and 40 percent in theresidential buildings space cooling (air conditioning) energy compared to

the 2005 Title 24 Standards. Each appliance provided by the builder mustbe Energy Star labeled if Energy Star is applicable to that appliance.Or

30 percent reduction in the residential buildings combined spaceheating, cooling and water heating energy and 30 percent in theresidential buildings space cooling (air conditioning) energy compared tothe 2008 Title 24 Standards. Each appliance provided by the builder mustbe Energy Star labeled if Energy Star is applicable to that appliance.

Non-residential New Construction Buildings

1) 30 percent reduction in the non-residential buildings combined spaceheating, cooling and water heating energy compared to the 2005 or 2008Title 24 Standards.

Field verification of measures will be required and be consistent with current Title 24Standards field verification procedures and protocols.

C. Grid InterconnectionEligible PV systems must be permanently interconnected to the electrical distributiongrid of the utility serving the customers electrical load. The site where the system is

installed must receive electrical distribution service from Turlock Irrigation District. Thesystem interconnection must comply with applicable electrical codes, utilityinterconnection requirements, and metering requirements.


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D. System ComponentsMajor system components are defined as PV modules, inverters and meters. All majorsystem components must be new and must not have been previously placed in servicein any other location or for any other application.

Turlock Irrigation District supplies a utility-grade meter for all PV systems. Thecustomer must provide the meter socket for this meter. See Appendix 4 for linediagrams and specific requirements.

Application for reservation must be received and approved prior to systeminterconnection.

Performance information for approved major components will be posted on the EnergyCommissions lists of eligible equipment available at:www.consumerenergycenter.org/erprebate/equipment.html.

The applicant must confirm that the components purchased for a system are eligiblewhen applying for a reservation. Turlock Irrigation District or its agents will confirm thatthe equipment identified in a reservation package meets eligibility requirements prior toa reservation being granted. Because equipment is added and removed from theeligible equipment list on a regular basis, Turlock Irrigation District recommends theapplicant wait for an approved reservation before installation commences. If theapplicant begins or completes the installation before Turlock Irrigation District hasapproved the reservation, Turlock Irrigation District cannot be held responsible for anychanges in incentive or eligibility.

E. System Performance Meter

Customers must be enabled to read the performance of the PV system. Some inverterson the eligible equipment list do not have display meters. The system must display itscurrent output as well as display total outputs, such as monthly and annual kWhgenerated.

The meter supplied and installed by Turlock Irrigation District will satisfy thisrequirement.


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F. Performance Metering and Reporting Service (PMRS)Performance metering and monitoring provides greater connectivity between the systemand the system owner. As such, certain levels of PMRS are required for certain systemtypes. The CEC maintains a list of eligible PMRS providers at

http://www.gosolarcalifornia.com/equipment/monitors+rsp.html

The following table displays which PMRS solution, if any, is required.

Incentive SystemSize

Minimum MeterAccuracy

PMRSRequired

CostCap

EPBI


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J. Field Verification

Upon receipt of a complete Request for Payment Form and supplemental documents,

the Applicants project will be field verified by a Turlock Irrigation District representative.

Incentive payments will be contingent on the field inspection visit and may be adjusteddepending on the results of the field inspection. In all cases, the equipment indicated inthe Request for Payment form must match the equipment observed during the fieldverification process. TID provides for some tolerances in system design as follows:

If a system fails a field inspection, the Program Administrator will notify the Purchaserwith the reasons for the field inspection failure. Once notified, the Purchaser will eitheraccept the failure and change in the incentive amount or dispute the inspection results.

If the failure is not corrected within 60 days, the project will be cancelled and theincentive forfeited.

The Program Administrators will also exercise their judgment in assessing fraud, whichcan occur due to gross negligence or intentional submission of inaccurate systeminformation in an attempt to collect more incentive dollars. The responsible party will beimmediately prohibited from participating in the program.

K. Warranty RequirementsAll systems must have a minimum ten-year warranty provided in combination by themanufacturer and installer to protect against defective workmanship, system orcomponent breakdown or degradation in electrical output of more than 10 percent fromthe originally rated electrical output during the ten-year period. The warranty must cover

Inspection results PA Action ApplicantAction

Failure

Results within set tolerance:Tilt 5, Azimuth 5,Shading 5% of summershading

Accepts submitted EPBB Calculatorand initiates payment as normal

No Action Necessary No

Results outside settolerance, but within 5% ofsubmitted incentive

Recalculate Incentive based oninspected EPBB calculator results. Ifnew incentive is within 5% of submittedincentive, then notifyApplicant of a new incentive amountchange.

Applicant accepts theincentive amountchange or disputeswithPA for resolution

No

Results outside set toleranceand not within 5% ofsubmitted Incentive.

Recalculate Incentive based oninspected EPBB calculator results. Ifnew incentive is not within 5% ofsubmitted incentive, then notifyApplicant of a new incentive amountchange and issue a Failure.

Applicant accepts theincentive amountchange or disputeswithPA for resolution

Yes


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the solar generating system, including PV modules (panels), inverters, and trackers,and provide for no-cost repair or replacement of the system or system components,including any associated labor during the warranty period.

Chapter 3. Incentive Levels and StructureThis section describes the incentives offered. The TID Solar Electric Program providesan Expected Performance-Based Incentive (EPBI) using a specific dollars-per wattamount. The incentive amount for each applicant solar energy system is determined byanalysis using the EPBB Calculator, and is paid when the solar system has beeninstalled, approved by the local building authority, and all program requirements havebeen met. Detailed information on how the incentive amount is determined can be foundin Section B. Incentives will decline over the life of the program, with the programsapplication process closing no later than the end of 2016. Incentive levels and reserved

volume are subject to funding availability.

A. Incentive Amounts and Decline Schedule

1.Base Incentive

Expected Performance Based Incentives (EPBI) are available for systems under 30 kW .

The actual incentive amount for a particular system and installation depends on the

EPBI calculation of the systems expected performance compared to the reference

system. Incentive levels will decline when a specific cumulative MW volume of

reservations, in terms of total-program capacity, has been reached, as reflected by the

table below. Systems using trackers, either single or dual-axis, do not receive

additional EPBI incentives even though the system will generate more kWh than a non-

tracker system.

Customers that have received and EPBI and would like to apply for a rebate to increase

an existing system must wait one year from the time the existing system is

interconnected if the total system size will be 30 kW or greater.

For developments of six or more units, instead of reporting the exact characteristics of

all systems, builders may apply using the Flexible Installation criteria if these systemsmeet the Flexible Installation criteria. Systems installed within the range of theseorientations and tilts and meet the minimal shading criteria can use the FlexibleInstallation criteria as the basis for the reservation application and incentive requestwithout having to know more specific orientation, tilt and shading conditions. Third-partyfield verification will be conducted to assess whether systems have been installedconsistent with the characteristics used to determine estimated performance.


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Performance Based Incentives (PBI) are available for systems 30+kW. The amount tobe paid per kWh over the entire payment term is set once the reservation has beenconfirmed. Incentive declines occurring after a system has been reserved do not applyto reserved systems. Systems using trackers, either single or dual-axis, will be countedas 40% larger than a non-tracker system for purposes of booking kW against the trigger

steps. This is to ensure proper funding for all installed systems. PBI Payments will bebased on actual kWh production. The payments will be paid monthly for the 5-yearpayment term.

Non-Residential Incentives Residential Incentives

MW EPBI


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B. Expected Performance-Based Incentive CalculationThe Program provides an incentive based on the expected performance (i.e., expectedannual generated electricity), of a PV system installed in a specific location. The EPBI isdetermined by analysis using the www.csi-epbb.com tool. The analysis accounts for thetested and certified performance of the specific module and inverter, the mounting type

and cell temperature, the orientation and tilt of the modules, and the extent to which thesystem is shaded. The PV calculator accounts for these parameters that are under thecontrol of the installer, as well as the solar and climatic conditions for the locale of thebuilding to determine the estimated performance over a year. The kilowatt-hour (kWh)production of an applicant system is compared to the kWh production of a referencesystem. The calculator establishes a performance ratio between the reference systemand the proposed system. This ratio is known as the Design Factor. The maximumdesign factor for EPBI is 100%.

The calculator uses the reference system shown in the following table:

Reference PV System & InstallationParameters Reference System & Installation

Location See EPBB User Guide (www.csi-epbb.com)Azimuth 180 (South orientation)Tilt 17Shading NoneDefault Efficiency Setting to account for dirt, dust and mismatched

wiring can be found on the PV User Guide atwww.csi-epbb.com

Flexible Installation (production home builders with 6+ sites)

In lieu of site-specific EPBI analysis as described above, the TID Solar Electric Programpermits applicants to use the Flexible Installation criteria as an alternative approach toestimate the EPBI. The Flexible Installation criteria offer a simplified approach toestimating the incentives for those solar systems in a development that are designedand installed to meet the criteria. One EPBI calculation can be applied to all solarsystems in a subdivision that meet all of the following: 1) azimuth ranging from 150 to270, 2) tilt corresponding to a roof pitch between 1:12 and 7:12, 3) minimal shadingcriteria and 4) uses the same module models, number ofmodules, and inverter.Minimal shading criteria implies no existing, planned orpotential shading obstructionsthat are closer than a distance of twice the height that the obstruction extends aboveany point on the modules. For the Flexible Installation systems, the Design Factor is

assumed to be 94% or 0.94.

C. Other Incentives May Affect the Rebate AmountIncentives received from sources other than the TID Solar Electric Rebate program thatlowers the cost of the PV system may affect the incentive amount applicants receive. Ifincentives are from other utility incentive programs, a State of California sponsored


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incentive program, or a federal government sponsored incentive program (other thantax credits), the rebate from TID will be reduces to ensure the sum of all incentivesreceived or expected from all sources, including TIDs, does not exceed the total cost ofthe system. Applicants are required to inform the District of any other incentives forwhich they have applied and/or may receive.

Chapter 4. Reservation Process

This section describes the process required to reserve funding from the TurlockIrrigation District Rebate program. A reservation confirmation provides assurance thatreserved funds will be available when a request for payment is made.

Once the system owner has decided to install a solar system and has an executedcontract with their system installer, the Reservation Application Package is submitted inthe first step of the application process.

A. Residential Retrofit SystemsThe following documents must be submitted with original signatures (as applicable):

1. Application: Residential Retrofit2. Contract with Installer, Proposal or Letter of Intent to Purchase3. Interconnection Application4. Interconnection Agreement with Turlock Irrigation District5. Energy Efficiency Audit report that includes recommendations for energy

efficiency improvement. The audit can be replaced with proof of title 24compliance within the past three years. (See Chapter II, Section B for details)

6. EPBB Calculator printout (from www.csi-epbb.com)7. Site Plan/Roof Plan8. Single Line Diagram that includes placement of AC and DC disconnect switches,

inverter(s) and meter sockets9. Cut sheets for panels and inverters

Once the Program Administrator approves the reservation request, the ProgramAdministrator will issue a notice confirming a specific incentive amount and reservationexpiration date. The system must be purchased, installed, and put into operation by theReservation Expiration Date.


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B. Residential New Construction

The following documents must be submitted with original signatures (as applicable):

1. Application: Residential New Construction2. Contract with Installer, Proposal or Letter of Intent to Purchase

3. Interconnection Application

4. Interconnection Agreement with Turlock Irrigation District

5. Form CF-1R showing proof of 30% or 35% better than Title 24 compliance. (SeeChapter II, Section B for details).

6. EPBB Calculator printout (from www.csi-epbb.com)

7. Site Plan/Roof Plan

8. Single Line Diagram that includes placement of AC and DC disconnect switches,inverter(s) and meter sockets

9. Cut sheets from the panels and the inverters

Once the Program Administrator approves the reservation request, the ProgramAdministrator will issue a notice confirming a specific incentive amount and reservationexpiration date (18 months from the reservation date). The system must be purchased,installed, and put into operation by the reservation expiration date.

Prior to, or after, confirming the reservation, the Program Administrator may requestdocuments that reflect a commitment to timely construction including:

1. Grading Permit

2. Building Permit3. Approved Construction Schedule from the governing entity

Buildings that do not meet the energy efficiency levels may apply only after theresidence is fully constructed. For system sizes up to 5 kW, once constructed, theymay immediately apply using the Residential Retrofit method. For systems over 5 kW,the applicant must wait until there is a 12-month utility history for that home.


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C. Non-residential Retrofit

The following documents must be submitted with original signatures (as applicable):1. Application: Non-residential Retrofit

2. Contract with Installer, Proposal or Letter of Intent to Purchase3. Interconnection Application4. Interconnection Agreement with Turlock Irrigation District5. Energy Efficiency Audit report including recommendations for energy efficiency

improvement or proof of Title 24 compliance within the past 12 months. (SeeChapter II, Section B for details).

6. EPBB Calculator printout (from www.csi-epbb.com)7. Site Plan/Roof Plan


9. Cut sheets for panels and inverters

Retro-Commissioning RequirementsA Retro-commissioning assessment is required for buildings 100,000 sq.ft. whosebenchmark rating is less than 75 and receiving EPBI. Energy efficiency improvementsidentified in the assessment are required to be completed prior to any incentivepayments being made.

PBI systems as well as buildings meeting Title 24 requirements within the past 12months are exempt from Retro-commissioning. .

D. Non-residential New ConstructionThe following documents must be submitted with original signatures (as applicable):

1. Application: Non-residential New Construction2. Contract with Installer, Proposal or Letter of Intent to Purchase3. Interconnection Application4. Interconnection Agreement with Turlock Irrigation District5. PERF-1 form showing proof of 15% or 30% better than Title 24 compliance. (See

Chapter II, Section B for details).6. Site Plan/Roof Plan


8. Equipment Schedule (provide for each phase)9. EPBB Calculator printout (from www.csi-epbb.com)10. Cut Sheets for panels and inverters11. Future Improvement Agreement (if applicable)Letter of agreement between

building owner and tenant, obligating the tenant to make the energy efficient


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improvements necessary to meeting the overall building energy efficiency levelthat was committed by the building owner.

Once the Program Administrator approves the reservation request, the ProgramAdministrator will issue a notice confirming a specific incentive amount and reservationexpiration date. The system must be purchased, installed and put into operation by the

reservation expiration date.

Prior to, or after, confirming the reservation, the Program Administrator may requestdocuments that reflect a commitment to timely construction including:

1. Grading Permit2. Building Permit3. Approved Construction Schedule from the governing entity

E. Additional Information on Reservations

Funding is available on a first-come, first-served basis for applicants who submitcomplete and accurate applications. Only one reservation and one incentive paymentwill be allowed for the premise-service during the reservation period.7Applicants will notbe allowed to submit multiple reservation applications for the same residential dwellingunit. Only applicants or designated payees who submit complete and accuratereservation applications and provide all supporting documentation will receivereservation confirmation approval.

Incomplete Reservation Package Requests

If an application is found to require clarification, the Program Administrator will request

additional information. Applicants have 20 calendar days to respond to the clarificationrequest with the necessary information. If after 20 calendar days the Applicant has notsubmitted the requested information, the application may be canceled. Resubmittedapplication packages will be treated as new applications (i.e., all required documentsmust be resubmitted) and processed in sequence along with other new applications.

Applicants are strongly encouraged to keep copies of all applications andsupporting documentation submitted to Turlock Irrigation District or its agents.

7An applicant may only cancel their reservation and re-apply for a new one within the original reservation

period if the incentive has dropped at least one level from the rebate granted in the original reservation. A

letter explaining the request must be submitted with a new Reservation Application Form signed by the

builder. This is designed to discourage applicants from applying too early in the process for a system to

be installed within the reservation period.


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F. Where to Send Application Package

To submit application package, please send to the following:

Turlock Irrigation DistrictAttn: Consumer Programs333 East Canal Drive

P.O. Box 949

Turlock, CA 95381-0949

Chapter 5. Payment ProcessThis section describes the process required to claim an incentive for all program types

(Residential Retrofit and New Construction, Non-residential Retrofit and New

Construction). After the solar system is purchased, installed, and has received the Final

Building Permit inspection, the Applicant will submit the following documentation to

request their incentive payment:

1. Request for Payment Form completed with original signatures of Installer,Purchaser and Applicant (if other than Purchaser)

2. Invoice showing all retail costs for purchase and installation3. City or County Final Permit Inspection Sign Off4. EPBB Calculator Printout (from www.csi-epbb.comif system has changed)

5. PMRS Exemption (EPBI only) or 5Year PMRS Service Contract

For more information on the above-referenced forms, please see section A below.Although the Applicant is not required to submit Proof of Authorization to Interconnect tothe utility grid, Turlock Irrigation District will verify interconnection prior to payment of theincentive.

If incomplete, Turlock Irrigation District will request further information from applicant. Ifproject has been deemed ineligible, Turlock Irrigation District will send notice ofineligibility. If system has been approved by Turlock Irrigation District, an EPBIincentive payment will be issued. For PBI projects, Turlock Irrigation District enterscustomer into PBI payment process for the specified payment period.


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A. Payment Claim Documentation

1. Request for Payment FormAny changes to the information provided on the previously submitted Reservation

Application, such as the use of different equipment, a different installer or a differentequipment seller, must be noted in the space provided on the Request for Paymentform. If additional space is needed to note such changes, additional pages may beattached.

2. Documentation Confirming Payment

Turlock Irrigation District reserves the right to conduct spot checks to verify thatpayments were made as identified in the final invoices or agreements provided byequipment sellers and/or installers. As part of these spot checks, Turlock Irrigation

District may require applicants to submit copies of cancelled checks, credit cardstatements, or equivalent documentation to substantiate payments made to theequipment seller and/or installer. (When submitting this documentation, applicants areencouraged to remove their personal account numbers or other sensitive informationidentified in the documentation.) Applicants must explain the difference if the finalamount paid by the applicant is different from the amount of the purchase or installationshown in the Request for Payment form.

3. Final Building Permit and Final Inspection Sign OffApplicants must submit a copy of the building permit and the final inspection signoff for

the system installation prior to the expiration date of the reservation. The builder nameand address on the final building permit and final inspection signoff must match thename and address shown on the Request for Payment Form.

4. Expected Performance Based Incentive (EPBI) DocumentationA copy of the EPBB calculator printout is only required if any aspects of the systemhave changed since the confirmed reservation that would result in a change in theReservation Confirmation incentive amount. This new printout must reflect the systemas installed and claimed on the Request for Payment Form.

B. Assignment of Rebate PaymentThe Purchaser may assign his or her right to receive the payment to another party bycompleting the appropriate section(s) of the Request for Payment form. Purchasers whoassign their incentive payment to another party will still be reported as the recipients ofthese payments for tax purposes.


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C. Payment Claim SubmissionApplicants must mail the complete payment claim package to Turlock Irrigation Districton or before the expiration date specified on the Reservation Confirmation. Paymentswill be provided for each payment claim package submitted. Payment claims may bemade for individual buildings or groups of buildings. Reservation-holders are not

required to have completely installed all systems in their reservations before submittinga payment claim package.

Applicants are strongly encouraged to keep copies of all documents submittedin the payment claim package.

If the payment claim package is incomplete, Turlock Irrigation District will request theapplicant to provide all missing or unclear information; the applicant will be responsiblefor obtaining missing or revised information from the equipment seller or installer toprocess the request. Turlock Irrigation District will allow the applicant up to 60 days torespond with corrections to all the missing or unclear information to approve payment. If

the claim is made after the expiration date of the reservation or is otherwise ineligible,the applicant may reapply for a rebate reservation but will be subject to the programeligibility requirements, incentive levels, and funding available at the time of thereapplication.

D. Claiming an Incentive Payment Without a Prior ReservationIn order to receive an incentive payment from Turlock Irrigation District, the system musthave an approved reservation prior to system interconnection. Any system that hasbeen interconnected prior to receiving a reservation confirmation is ineligible forincentive payments.

Appendix 1Frequently Asked Questions

A. Can My Installed System Be Different Than My Reservation?Turlock Irrigation District expects a system to be installed as described in the

Application Form, but recognizes that changes may occur during installation. Changesdo not require prior approval, but must be documented on the Request for Paymentform and are likely to change the incentive amount. Changes that result in a lowering of

the expected performance of a system, and thereby lowering incentive amounts are nota problem. However, any change that increases the expected performance of a system,and thereby increasing the rebate amount is subject to availability of funding. The payeemay receive the incremental increase in the eligible rebate at the time the claim isreceived.

If any system change occurs or is determined by the field verification that decreases theexpected performance below that used in the reservation, the rebate is based on the


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lower expected performance. If any system change occurs or is determined by the fieldverification that increases the expected performance above that used in the reservation,Turlock Irrigation District will pay based on the higher performance.

If the applicant uses the Flexible Installation criteria and the minimal shading criteria,

the applicant may complete the Request for Payment form using the expectedperformance used for the reservation as long as the orientation, tilt and minimal shadingcriteria are determined to be met by the field verification. The applicant also has theoption of recalculating the incentive based on the actual orientation and tilt of thesystem as determined by the field verification. If the field verification determines that theFlexible Installation criteria and the minimal shading criteria are not met, the expectedperformance will be re-calculated based on the actual orientation, tilt and shading.

B. Can New PV Be Added to Existing Inverters?Yes, so long as the following are met:

a) New PV modules must be on the eligible equipment listb) Only if the existing system was paid an incentive in accordance to SB 1 and

SB 1 guidelines.c) New equipment must meet the 10-year warranty requirementsd) All current program and documentation requirements apply to the newly

added equipment.

C. Can I Get a Time Extension?A time extension may be granted on a case-by-case basis.

Appendix 2System Size JustificationThis Appendix describes the method used to determine the maximum system sizeeligible for incentives from the program. Because the average annual residentialelectricity consumption in California is about 7000 kWh/yr, systems that are 5 kW andunder are automatically presumed in compliance with the maximum size limitation. Incases where the proposed system size is greater than 5 kW, the system must be sizedsuch that the expected performance, defined as expected annual generation of thesystem, is no greater than 100 percent of the buildings on -site estimated annualelectricity consumption. For new construction, the applicant may submit either theestimated annual electricity consumption based on a detailed energy use calculation

signed by a Certified Energy Plans Examiner (CEPE) or a letter from a qualifiedarchitect, engineer, or electrical contractor (C-10 licensed) licensed by the State ofCalifornia detailing expected energy consumption. Turlock Irrigation District will use theexpected system electricity production from the EPBI calculation and compare it to theexpected energy consumption. For retrofit projects greater than 5 kW, the system sizefor incentive payment is capped at two times the existing annual load, even with load

justification.


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SizeRequested

Annual Load (kWh) at ProposedSite

LoadJustificationRequired

Required Action

Up to 5kW Any None NoneOver 5kW Annual kWh on EPBB printout is

less than Annual LoadNone None

Over 5kW Annual kWh on EPBB printout isgreater than Annual Load

Yes Submit detailed calculations orletter from qualified entity

Appendix 3Field Verification and Diagnostic Testing

A. Background

The Solar Electric Program provides incentives to builders for installing highperformance PV systems on energy efficient homes and businesses. Field verificationmust be conducted to ensure that the components of the solar system and itsinstallation are consistent with the characteristics used to determine its estimatedperformance. Field verification is a value-added service that provides quality control andcan protect the builder, contractor and supplier, and business or homeowner. Fieldverification is completed consistent with the procedures of Chapter 7 of the 2005Building Energy Efficiency Standards Residential Alternative Calculation Methods

Approval Manual.

The field verification and diagnostic testing procedures described in this Appendix are

intended to ensure that the:

PV modules and inverters used in the expected performance calculations are actuallyinstalled at the applicable site;

PV modules are minimally shaded, or if shaded, that the actual shading does not exceed the shading characteristics that were included in the expected performancecalculations; and

Measured output power from the system matches that expected by the PV Calculatorwithin the specified margin at the prevailing conditions at the time of field verification

and diagnostic testing.


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B. ResponsibilitiesField verification and diagnostic testing is the responsibility of both the PV systeminstaller and Turlock Irrigation District. The PV installer must perform the fieldverification and diagnostic testing procedures in this document for every system that

they install.

C. Field Verification and Diagnostic Testing ProcessDocumentation of the process uses three forms that are counterparts to the complianceforms used for the Building Energy Efficiency Standards.

1. The Applicant/ Purchaser/ Installer representative enters the necessary input datainto the EPBB Calculator (found at www.csi-epbb.com) which produces an output reportthat documents the specific modules and inverters used in each array of the solarsystem that is installed on the building and the anticipated shading of each system(either the intent for the system to meet the minimal shading requirements or the actual

shading that is anticipated.

2. Once each solar system is installed, the PV installer completes the field verificationand diagnostic testing protocol for each solar system on the building and documents theresults on the Payment Request Form verifying that the installation is consistent with theEPBB Calculator. The PV installer documents and certifies that the PV system meetsthe requirement of this appendix and signs the Installation Certification section in thePayment Request Form.

3. The Program Administrator or third party inspector completes field verification anddiagnostic testing of each solar system and documents the results on the Field

Verification and Testing Summary, independently verifying that the installation isconsistent with the EPBB Calculator printout. The inspector provides a copy of the FieldVerification and Testing Summary to the Program Administrator (if different) andPurchaser.

In cases of new construction, the applicant must provide to the installer and rater a siteplan that for each lot:

a) identifies the species of all pre-existing, planted and planned trees and the locationand height of any structures which will be built on the lot and neighboring lots of thebuilding with the solar system; and

b) shows the bearing of the property lines and the azimuth and tilt or roof pitch of eachPV array.


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D. Relationship to Other Codes, Standards and VerificationThe local jurisdiction must issue a building permit for the qualifying PV system, either asa separate permit or as part of the new residential building permit, and the PV systemmust meet all applicable electrical code, structural code and building code

requirements. In addition, the local electric utility will have standards regardinginterconnection to the electric grid and other matters. The field verification anddiagnostic testing procedures described in this document do not substitute for normalelectrical, structural or building plan check or field inspection nor do they substitute forfield verification by the local utility regarding interconnection to the electric grid.

E. Field Verification Visual InspectionThe purpose of the visual inspection described in this protocol is to verify that themodule and inverter specified in the EPBB Calculator printout is the same as theinstalled equipment. The inspector shall use binoculars or another means to view the

installation without being required to get on the roof, and shall verify the models andnumbers of modules against the Request for Payment form. The inspector may rely onphotographic evidence provided by the installer on the models and numbers ofmodules, standoff distance and shading, but in the absence of such evidence, must relyon a conservative determination based solely on their own observation.

1. PV ModulesThe PV installer and the inspector must verify that the same number of each make andmodel number of PV modules used in the expected performance calculations areinstalled in the field. The PV installer and inspector must also verify the modulemounting type (flush mounted BIPV or rack mounted) and in the case of rack mountedmodules, the standoff distance of the modules above the mounting surface.

2. InvertersThe PV installer and inspector must verify that the make and model of inverters used inthe expected performance calculations are installed in the field.

3. Tilt and AzimuthThe PV installer and the inspector must verify that the tilt and orientation (azimuth) ofthe PV modules installed in the field match the values that were used to determine theexpected performance of each solar system, within 5 degrees. In some systems, PV

modules may be installed in multiple arrays with different tilts and azimuths. In thesecases the tilt and azimuth of each array must be verified. Note that for systems usingthe Flexible Installation criteria, the tilt and azimuth of each system must be shown tofall within the range of tilt and azimuth that is allowable under that criteria.


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a) Determining TiltThe tilt angle of the PV modules is measured in degrees from the horizontal (e.g.horizontal PV modules will have a tilt of zero and vertically mounted PV modules willhave a tilt of 90 degrees). The tilt of the PV modules may be determined in the followingways:

i. Using the building plansThe as-built or construction drawings for the residential building will state the slopeof the roof, usually as the ratio of rise to run. If the PV modules are mounted in theplane of the roof then the slope of the PV modules is the same as the slope of theroof. Table 1 may be used to convert rise to run ratios to degrees of tilt.

Table 1 Conversion of Roof Pitch to TiltRoof Pitch(Rise:Run)

Tilt*(degrees)

2:12 103:12 144:12 185:12 236:12 277:12 308:12 349:12 3710:12 4011:12 4312:12 45

The above table represents the tilt in full degrees so as to match the inputs available on the EPBB

calculator. Actual degrees have been rounded to the nearest whole digit.

ii. Using a digital protractorA digital protractor may be used to measure either horizontal or vertical angles(see Figure 1). These devices when sighted up the slope of the PV modules fromthe ground will display the slope, relative to the horizontal.


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Figure 1 Digital Protractor

b) Determining Orientation (Azimuth)The convention that is used for measuring azimuth is to determine the degrees of angleclockwise from north, e.g., north azimuth is zero degrees, east is 90 degrees, south is

180 degrees and west is 270 degrees (see Figure 2).

Figure 2 Azimuth of the PV ArrayThe following methods may be used to determine the azimuth.

i. Using the site plansIn new subdivisions, the house plans will often not show the property lines since theplans are used on multiple lots. However, the subdivision plot plan will show the

property lines of the lots. The plot plan will show the bearing of the property lines, andfrom this information the azimuth of the roof surfaces where the PV modules aremounted may be determined from the position of the house on the lot relative to thebearings of the property lines.

ii. Using a compass with a sighting feature and an adjustment for magneticdeclination.Make sure that the compass has a sighting feature. The compass may have anadjustment built in for magnetic declination so that the reading on the compass is true

north. If not, the magnetic declination may be found using the tool available at[http://www.ngdc.noaa.gov/seg/geomag/jsp/Declination.jsp]. Adjust the compassreading to account for the magnetic declination. Position the compass and determinethe array azimuth angle between compass north and the direction that the PV modulesface. Its usually convenient and most accurateto align the compass along the edge ofthe array using the sighting feature (see Figure 3).


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Figure 3 Compass with a sighting feature

c) Verifying Tilt and Azimuth for Systems Meeting theFlexible Installation CriteriaTurlock Irrigation District allows determination of expected performance using theFlexible Installation criteria, which bases the estimated performance on an estimate ofthe performance for a range of module orientations and tilts. The Flexible Installationcriteria applies to all solar systems that are installed with an azimuth ranging from 150 oand 270 o and all modules installed at the same tilt as the roof slope for roof pitchesbetween 1:12 and 7:12.

For each system on each building that has the expected performance based on theFlexible Installation criteria, the modules must be installed with any azimuth and withany tilt within the acceptable range. Note that to use the Flexible Installation criteria,each solar system on each site must meet the minimal shading criterion discussedbelow.

F. Shading VerificationShading conditions at the site must be consistent with those used in the EPBBCalculator printout. The estimated performance calculations will be done eitherassuming that the minimal shading criterion is met or based on the specific shadingcharacteristics of each system and building.

1. Minimal Shading CriterionThe minimal shading criterion is that no obstruction is closer than a distance (D) oftwice the height (H) it extends above the PV modules (see PV Users Guide found atthe EPBB Calculator website www.csi-epbb.com). The distance D must be at least twotimes greater than the distance H. Any obstruction that projects above any portion ofthe PV array must meet this criterion for the PV array to be considered minimallyshaded. Obstructions that are subject to this criterion include:


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a. Any vent, chimney, architectural feature, mechanical equipment or

other obstruction that projects above the roof of the residential building;

b. Any part of the neighboring terrain that projects above the roof:

c. Any tree that is mature at the time of installation of the solar system;d. Any existing neighboring building;

e. Any telephone or other utility pole that is closer than thirty feet from the

nearest point of the array.

Obstructions that are located north of the array at azimuths between 305 and 55 fromnorth relative to the most northerly points on the PV array need not be considered asshading obstructions. The PV installer and the program administrator / third partyinspector may verify through visual inspection that most obstructions above the roofmeet the 2:1 criterion. For obstructions that visual inspection indicates potentially do not

meet the criterion, the PV installer and program administrator / third party inspectormust measure the height and distance of the obstruction(s) relative to the PV array asdescribed above to verify that the 2:1 shading criterion is met.

2. Accounting for Actual ShadingWhen a PV installation does not meet the minimal shading criterion, it can still qualify foran incentive and participate in the program, but the shading conditions for each solarsystem at the site must be accounted for in the expected performance calculation asdescribed in this section.

3. Measuring Shade ImpactOne of the following procedures may be used to measure heights and distances oraltitude angles to obstructions.

Using a Solar Assessm ent Tool

For shading from existing obstructions, such as neighboring buildings or otherstructures, terrain or already mature trees, on-site shading conditions can be verifiedusing an instrument such as the Solar Pathfinder or SunEye. Follow the manufacturers

instructions carefully to ensure accurate readings.

The measurements shall be made at all the major corners of the array with no adjacentmeasurement being more than 40 feet apart (see example in Figure 4). The points ofmeasurement shall be distributed evenly between two major corners if they are morethan 40 feet apart such that the linear distance between any sequential points is nomore than 40 feet. However, if any linear edge of the array has no obstructions that are


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closer than two times the height they project above the closest point on the array, thenthe intermediate measurements along that edge do not need to be made.

Figure 4Example of Points where Measurements shall be madeWhen using solar assessment tool (overall dimension 76 x 50)

G. Verification of System PerformanceSystem performance verification is important to ensure all parties are receiving theproper benefits of the system.

For systems th at have two o r mo re str ings con nected in paral lel to the same

inverter , the fol low ing app l ies:

1. Complete a visual check of the system to ensure the modules and all othersystem components are bolted securely, and all wiring connections have beenmade properly according to the system schematic, manufacturers instructions, and applicable electrical code requirements.

2. Check the polarity of all source circuits to be correct.3. The open circuit voltages of source circuits shall be tested and measured to be

within 2 percent of each other.4. The short circuit currents shall be tested and measured to be within 5 percent of

each other.5. Indicate on the Request for Payment form in the appropriate section that the

above has been completed.

For systems that have only one str ing co nnected to a single inverter or for

systems u sing m icro- inver ters, the fol lowing appl ies:


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1. Record Temperature and Irradiance as discussed below.2. Examine Field Verification Output (FVO) table (at end of section) for the

percentage shown given the measured temperature and irradiance. Alwaysround temperature up to the next block. So, 47 degrees rounds up to 55 degreeson the chart.

3. Multiply the CEC-AC (from EPBB printout) times the FVO percentage to getestimated system output.4. Compare estimated system output with actual output. If actual system output is

higher, system is operating within expectations. If estimated output is higher,perform additional diagnostics and correct any issues as the system may not beperforming properly.

5. Enter the appropriate values on the Request for Payment form.

Verification of system performance must be performed after the PV system is installedand connected to the electricity grid. Measurements must be made with a minimumirradiance of 300 W/m in a plane parallel to the array. The PV installer and/or theprogram administrator / third party inspector must 1) measure the solar irradiance in aplane parallel to the array 2) measure the ambient air temperature. The PV installer orprogram administrator / third party inspector must then observe the output AC powerdisplayed on the inverter and verify that the output AC power is at least the amountshown in the table for the field measured conditions. To qualify for the incentive, PVsystems must have a performance meter or an inverter that has a built in meter thatmeasures output AC power.

Using the Field Verification Output Table

Example: 3.5 kW AC system measured at 65oF and with an irradiance of 900 watts/m2.

The FVO shows 68%. So 3.5 kW x .68 (68%) = 2.38 kW. As long as the inverter outputreads higher than 2.38 kW (2,380 W), the system is performing sufficiently.

1. Measuring Solar IrradianceSolar irradiance must be measured by using a solar pyranometer. When making thismeasurement, the PV installer or program administrator / third party inspector mustplace the pyranometer in a plane that is parallel to the PV modules. The PV installershould position the pyranometer on top of the PV modules or on the roof next to the PVmodules. The program administrator / third party inspector who is not likely to be able to

get on the roof must position the pyranometer such that it is in full sun and is in planethat is parallel to the PV modules. Digital protractors or other instruments may be usedto properly position the pyranometer.

2. Measuring Ambient Air TemperatureAmbient air temperature must be measured with a digital thermometer in the shade.The instrument must have an accuracy of 2 o C.


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3. Observing Output AC Power at the InverterThe PV installer and the program administrator / third party inspector must observe andrecord the reading within five minutes of the time the measurements of solar irradiation

and ambient temperature were made. Note that the inverter may cycle between multiplereadings (total kWh of production, output power, etc.), so the PV installer or programadministrator / third party inspector will need to wait until the power is displayed andrecord this reading; several readings should be made to make sure that they areconsistent and stable.

4. Multiple Orientation ArraysFor larger systems, PV modules connected to the same inverter may be installed withstrings of equal numbers of modules connected in parallel in more than one orientation,each with its own tilt and azimuth (note that it is bad practice to install such strings in

series or with a different number of modules in each string; either of these installationswill lead to substantial reductions in performance). When strings are installed in multipleorientation arrays to the same inverter, separate EPBB Calculator printouts must beprepared for each orientation and solar irradiance must be measured separately in aplane parallel to each string that has a different azimuth and tilt. The expected output

AC power is determined separately for each condition and the sum is used forverification purposes.


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Field Verification Output (FVO) table

(W/m) T=15 T=25 T=35 T=45 T=55 T=65 T=75 T=85 T=95 T=105 T=115

300 26% 26% 25% 24% 24% 23% 22% 22% 21% 20% 20%

325 28% 28% 27% 26% 26% 25% 24% 24% 23% 22% 22%

350 31% 30% 29% 28% 28% 27% 26% 25% 25% 24% 23%375 33% 32% 31% 31% 30% 29% 28% 27% 27% 26% 25%

400 35% 34% 33% 33% 32% 31% 30% 29% 28% 27% 27%

425 37% 36% 36% 35% 34% 33% 32% 31% 30% 29% 28%

450 40% 39% 38% 37% 36% 35% 34% 33% 32% 31% 30%

475 42% 41% 40% 39% 38% 37% 36% 35% 34% 33% 32%

500 44% 43% 42% 41% 40% 39% 38% 37% 36% 34% 33%

525 46% 45% 44% 43% 42% 41% 40% 38% 37% 36% 35%

550 48% 47% 46% 45% 44% 43% 41% 40% 39% 38% 37%

575 51% 49% 48% 47% 46% 45% 43% 42% 41% 40% 38%

600 53% 51% 50% 49% 48% 46% 45% 44% 43% 41% 40%

625 55% 54% 52% 51% 50% 48% 47% 46% 44% 43% 42%

650 57% 56% 54% 53% 52% 50% 49% 47% 46% 45% 43%

675 59% 58% 56% 55% 54% 52% 51% 49% 48% 46% 45%

700 61% 60% 58% 57% 55% 54% 52% 51% 49% 48% 46%

725 63% 62% 60% 59% 57% 56% 54% 53% 51% 50% 48%

750 65% 64% 62% 61% 59% 58% 56% 54% 53% 51% 49%

775 68% 66% 64% 63% 61% 59% 58% 56% 54% 53% 51%

800 70% 68% 66% 65% 63% 61% 59% 58% 56% 54% 53%

825 72% 70% 68% 66% 65% 63% 61% 59% 58% 56% 54%850 74% 72% 70% 68% 66% 65% 63% 61% 59% 57% 55%

875 76% 74% 72% 70% 68% 66% 65% 63% 61% 59% 57%

900 78% 76% 74% 72% 70% 68% 66% 64% 62% 60% 58%

925 79% 78% 76% 74% 72% 70% 68% 66% 64% 62% 60%

950 81% 79% 77% 75% 73% 71% 69% 67% 65% 63% 61%

975 83% 81% 79% 77% 75% 73% 71% 69% 67% 65% 63%

1000 85% 83% 81% 79% 77% 75% 73% 70% 68% 66% 64%

1025 90% 85% 83% 81% 78% 76% 74% 72% 70% 67% 65%

1050 90% 90% 84% 82% 80% 78% 76% 73% 71% 69% 66%

1075 90% 90% 86% 84% 82% 79% 77% 75% 72% 70% 68%1100 90% 90% 90% 86% 83% 81% 79% 76% 74% 71% 69%

1125 90% 90% 90% 90% 85% 82% 80% 78% 75% 73% 70%

1150 90% 90% 90% 90% 86% 84% 81% 79% 76% 74% 71%

1175 90% 90% 90% 90% 90% 85% 83% 80% 78% 75% 73%

1200 90% 90% 90% 90% 90% 90% 84% 82% 79% 77% 74%


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Appendix 4: Interconnection

Please follow the TID guidelines for Net Metering as shown in the graphics below.


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turlock irrigation district - solar rebate program

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