los angeles community college district program ... presentation-8.20...2014/08/20  · los angeles...

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Los Angeles Community College DistrictProgram Management Office

District-wide Energy Program Overview

Facilities Master Planning and Oversight CommitteeAugust 20, 2014

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LACCD Energy Efficiency

• Early goals were based on the implementation of green, renewable and sustainable energy projects, including:

Photovoltaic Systems (PV) Thermal Energy Storage (TES) Co-Generation Systems

• Implementation based on energy stewardship rather than Return on Investment (“ROI”) or simple payback

Initial Program Vision

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Energy Budget: $128.8 million

Renewable Energy (PV) $122.5M

Measurement Demand & Response $ 6.3M

Remaining Uncommitted $ 0

40J Energy Budget Summary

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Central Plant Project Summary

Conventional Central Plant• Higher Energy Use• Simple to Operate

Co-Generation Central Plant• More Energy Efficient• Training Required for Complex Systems• Thermal Energy Storage = Lower Peak Demand• “TES” Requires Larger Footprint• Requires Turbines and Fuel Cells

2009 2008 2008 2010 2010 2009 2010 ETC2016

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Measurement and Demand Response (M&DR)

M&DR is the primary measurement essential for the long term energy optimization of all campuses

M&DR implementation = significant operational savings resulting in real time information on:

• System Performance• Demand Charge Avoidance

M&DR Successes:• Has been implemented as planned• Project on Schedule • Quantitative results projected for 3rd Quarter 2015• M&DR Benefits:• Peak Pricing Avoidance• Understand Energy Usage at Building Level• Prepares for Prop. 39 Energy Efficiency Projects

Project Summary

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Measurement and Demand Response (M&DR)

LAPC 29 CompletedLASC 19 CompletedLAMC 13 CompletedLACC 8 CompletedLATTC 24 On Schedule for late AugustWLAC 17 On Schedule for Mid SeptemberELAC 23 OngoingLAVC 27 OngoingLAHC 19 Ongoing

College Quantity of Proposed Installed Meters

Installation Status

By College

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Photovoltaic (PV) Summary

• Limited return on investment due to:– Timing on investment;– Incentives being reduced by SCE and DWP; and– Colleges are constrained in their use of PV by roof top and/or

space availability.

• PV program results:– Total installed PV systems are performing as intended– PV was the right solution, but the timing was not optimal

• Recommendations:– Concentrate efforts in metering to better understand usage– Establish a retro-commissioning (RCx) program, which

generally has lower capital costs and a faster return on investment

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Historical Summary of the Installed Price ofPhotovoltaics in the United States, 1998 – 2012

Source: U.S. Dept. of Energy –Lawrence Berkeley National Laboratory 2013

LACCD Installed Cost Per Watt = $10.36/WDC*

*Pricing today is approximately 50% of installed pricing

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Photovoltaic Installations by College

TotalProduction

(kWdc)ELAC East - Roofs 310 CompletedELAC East - Carports 306 CompletedLAHC Harbor - Carports 2,115 CompletedLAVC Valley - Carports 1,021 CompletedLAPC Pierce - Carports 630 CompletedLASC Southwest - Carports 725 CompletedLASC Southwest - Roof 12 CompletedVDK VDK - Carports 322 Completed

LAHC Harbor – Roof Carport 250 CompletedLAMC Mission – Roof Carports 178 CompletedLAPC Pierce - Carports 1,650 CompletedLASC Southwest - Carports 151 ConstructionLATTC Trade - Roof 65 ConstructionLATTC Trade - Carports 253 ConstructionWLAC West - Parking Structure PV 357 CompletedVaries District-WIde 2,280 Completed

College Description (Roof / Carport) Comments

Total kWp Installed 10,626 kWp (10.6 MW)

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LACCD Energy Profile

EUI (kBtu/SF)

EUI Compliance

FacilityOptimal

Performance

LACC 73.9

ELAC 57.6

LAHC 55.7

LAMC 67.4

LAPC 65.5

LASC 56.3

LATTC 42.6 N/A

LAVC 65.3

WLAC 55.4Total Average

60.0 N/A

Performing Adequately;Needs Improvement

Poor Performance; Needs Improvement

Acceptable Performance

U.S. Department of Energy -Colleges/Universities (CA)• Energy Utilization Index (EUI)

Average is 58 kBtu/SF

Optimal Performance =Commissioning,Retro-Commissioningand M&DR

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 ‐

 2,000,000

 4,000,000

 6,000,000

 8,000,000

 10,000,000

 12,000,000

Electric Ene

rgy Usage (kWh)

Energy Consumption (kWh)

Case Study 1: East Los Angeles College

Facts and Highlights:• Largest college building footprint: 1M+ SF• Highest Enrollment/Attendance: 27,181 students• High Efficiency Co-Gen Central Plant Installed in Dec 2010*

Optimal PerformanceEfficiencies Achieved

*

Future savings realized due to M&DR Project Implementation

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ELAC Co-Gen Central Plant

Plate and Frame Heat Exchanger –Glycol/Water Cooling Process working in conjunction with the TES during on peak hours

Natural Gas Micro Turbines

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Case Study 2: Los Angeles Southwest College

Facts and Highlights:• Sixth largest college building footprint: 500,000SF• Enrollment/Attendance: 7,593 students• High Efficiency Central Plant Installed in Jul 2009*

HVAC issues due to:• Buildings occupied prior

to adopting a mandatory whole building commissioning process

• Deferred Maintenance• Need for training

* ‐

 1,000,000

 2,000,000

 3,000,000

 4,000,000

 5,000,000

 6,000,000

 7,000,000

 8,000,000

Electric Ene

rgy Usage (kWh)

Energy Consumption (kWh) Not Performing Optimally

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Los Angeles Southwest College Central Plant

Central PlantThermal Energy Storage

Farm

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LACCD New Proposed Energy Strategies

• Our focus now to improve energy usage by:

– District-wide compliance with U.S. Department of Energy

Colleges/Universities (CA) Energy Utilization Index (EUI);

– Optimization of existing central plants;

– Retro-commissioning (RCx) of college buildings;

– Demand Side Management;

– Ensuring maximum return on investment (ROI);

– Exploring New Technologies (i.e., fuel cells); and

– Making every design decision with sustainability in mind.

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Thank you