the future of gads how availability data can enhance long...

The Future of GADS – How Availability Data

Can Enhance Long-Term Reliability

Assessment

Austin, TX

November 7, 2011

2 RELIABILITY | ACCOUNTABILITY

The GADS Data Monster


The GADS Databases

• Design – equipment descriptions such as manufacturers, number of BFP, steam turbine MW rating, etc.

• Performance – summaries of generation produced, fuels units, start ups, etc.

• Event – description of equipment failures such as when the event started/ended, type of outage (forced, maintenance, planned), etc.


Performance Records Include

• Unit Identification

• Month/year of report

• MW generated

• Various MW rating of the unit (Gross and Net Maximum and dependable capacities)

Any non-equipment loss from ambient conditions.

• Summary of various active hours (SH, RSH, Pumping hours, synchronous condensing)

• Summary of various outage hours (FO, MO, PO)

• Fuels burned


Event Records Include

• Unit identification

• Start/end of events

• Type of event

• Reason for the event

Cause code, and

Description of outage or derate


Mandatory GADS in 2012


Need for GADS Data

TADS and DADS are already mandatory. GADS is the final step.


Summary of Mandatory Report

• Mandatory under Section 1600 and 1500 of the NERC Rules of Procedure.

• Conventional (no renewable) units only

50 MW+ starting January 1, 2012

20 MW+ starting January 1, 2013

• Modification of in-house software only once.

• Uniformity in collection using GADS as authority.

• In-house audits of own data.

• Design data limited to 9 elements only.

• NERC tracks ownership of units

• No future retirement dates in GADS


Question & Answer


What’s new with GADS?


Move to WebE-GADS


Move to webE-GADS

In August 2011, NERC signed a contract with OATI to collect GADS data starting in 2012.


Move to webE-GADS

• In preparation, GADS is moving away from old event and performance record formats (97/95) and accepting only the latest formats (07/05) starting this year.

• All data sent to GADS should be year-to-date

January – September, not September only.

• New formats allow cause code amplification codes

(required as of January 1, 2011) for U1 events only.


Move to webE-GADS

• Beta testing of webE-GADS will begin during the first quarter of 2012.

Beta testers are needed.

• Training on using webE-GADS will also be during the first quarter of 2012.

• Once webE-GADS is up and operating, then no more data will be sent to [email protected] or Mike Curley.

mailto:[email protected]


Question & Answer


Continuing Projects

• Addition of wind generators and solar to GADS Working group formed to determine design,

event, cause codes, etc. for data collection.

Voluntary data collection at this point.


Wind Turbine Groups

zzz Wind Turbine Group

Groups report the following site data:

Associated Plant Identifier

Turbine Group ID

Turbine Group Name

NERC Utility Code

NERC Unit Code

Installed Capacity in MW

Auxiliary Capacity

Commercial Date

Nearest City, State

Location Longitude and Latitude

Elevation

Wind Regime (topography)

SCADA Type

SCADA Manufacturer

SCADA Model


What is pc-GAR?

• Unique software product to allow access to the data collected in the GADS database.

• It reports equipment outage information for the purpose of improving electric power output.

pc-G.A.R


Uses of pc-GAR

• Benchmarking generating units

• Class averages

• Q&A from public utility commissions, other groups

• Comparing Summer and Winter periods

• Locating top causes of outages (F, M, or P)

Outages or derates

• Many more reports, distributions, averages, etc.

• Reports can be made into graphs

• Outputs in screen views, prints, or CSV.


Question & Answer

Contact:

Mike CurleyManager of GADS [email protected]

mailto:[email protected]


Background Information


GADS Task Force

• Mandatory GADS submission discussed for many years.

• In June 2010, the PC impaneled a task force to evaluate the status of GADS need for mandatory submission:

About 73% of the installed capacity (20 MW or larger) reports outage events to GADS.

Currently voluntary database

In 2011, the NERC RIS, PC and Board of Trustees recommended mandatory submission for conventional

units (fossil, nuclear, combined cycle, etc).


What are “Conventional Generating Units?

• No Renewable!!!!!!

No Wind

No Solar

(At this time …)


Justifications For Conventional Units

• Nearly 300 GW are not reported GADS.

• Nearly 50% of new units 2000-2008 do not report

• Large amounts of hydro-pumped storage, combined cycle and gas turbines are missing.

• These units are needed to analyze the reliability of the bulk power system.


Recommendations –Process and Security

• The task force recommends that GADS data be provided from all NERC Compliance Registry Generator Owners, following Section 1600, Requests for Data or Information under NERC’s Rules of Procedures.

• GADS data confidentiality will be covered under NERC’s Rules of Procedure Section 1500, Confidential Information.


What are “Conventional Generating Units?”

• The ten types of conventional generating units: Fossil steam including fluidized bed design;

Nuclear;

Gas turbines/jet engines (simple cycle and others modes);

Internal combustion engines (diesel engines);

Hydro units/pumped storage;

Combined cycle blocks and their related components (gas turbines and steam turbines);

Cogeneration blocks and their related components (gas turbines and steam turbines);

Multi-boiler/multi-turbine units;

Geothermal units; and

Other miscellaneous conventional generating units (such as variable fuel –biomass, landfill gases, etc) used to generate electric power for the grid and similar in design and operation as the units shown above and as defined by the GADS Data Reporting Instructions.


Recommendations – MW Sizes and When

• Generator Owners shall report their GADS data to NERC as outlined in the GADS Data Reporting Instructions (Appendix III) for design, event and performance data for generating unit types listed above for units

50 MW and larger starting January 1, 2012 and

20 MW and larger starting January 1, 2013

• Generator Owners not listed on NERC’s Compliance Registry may report to GADS on a voluntary basis.

• All small MW units invited but are voluntary.


What is Meant by “MW Nameplate?”

• “MW Nameplate” is calculated by multiplying the MVA recorded of the generator times the power factor.

For example, a 100 MVA unit with a .90 power factor would be a 90 MW unit. Generator Owners not listed on NERC’s Compliance Registry may report to GADS on a voluntary basis.


Multi-units on Meters

10 MW 10 MW 10 MW 10 MW

10 MW 10 MW 10 MW 10 MW 10 MW

10 MW

Meter

Meter

Meter Meter Meter Meter

Not Required Reporting to GADS – Treat as Normal Unit.

Reportable to GADS – Treat as “Miscellaneous Unit”


Recommendations – Modify Reporting Software

• There will be a one-time effort by non-reporting generating companies to modify their existing computer data collection program outputs into GADS required formats. The GADSTF believes that equipment outage data is already collected by plant personnel, although they may not adhere to GADS requirements.


Recommendations - Uniformity

• Uniformity of data collection format is essential. All GADS data shall be collected using the GADS Data Reporting Instructions. The Reporting Instructions will be updated annually and each reporting company will be required to follow the latest Reporting Instructions for the current year. All questions or needs for interpretation of the reporting instruction interpretations will be coordinated with NERC staff and the GADSTF.

Updates will follow the Section 1600 process.


Recommendations – In-house Audits

• In-house review of GADS data by the reporting generating company has always been strongly encouraged under voluntary data reporting. Each reporting generating company shall continue to be responsible for collecting, monitoring, updating and correcting their own GADS design, event, and performance data.


Recommendations - Design

• Design data is essential for many generating plant analyses. Generating companies will be asked to review and update their design data annually or as recommended by NERC staff using the design time-stamping process, but the updating will be voluntary.

• The GADSTF leadership recommended that the design data requirement be nine (9) elements per unit, regardless of unit type.



• The nine design data fields were chosen for two specific reasons: Allowing GADS data to be matched with information

collected in the Transmission Availability Data System (TADS). One goal of NERC is to allow the GADS and TADS databases to interact with each other. Certain data fields are needed to allow generating units to be located in areas where transmission lines are located. Specific fields allow that interaction.

Editing the event and performance data to insure the continued quality of information collected by GADS.



• GADS utility code (assigned by GADS Services)

• GADS unit code (assigned by the reporting company following the guidelines in Appendix C of the GADS Data Reporting Instructions.)

• NERC Regional entity where the unit is located

• Name of the unit

• Commercial operating date

• Type of generating unit (fossil, combined cycle, etc.)

• MW size (nameplate)

• State or province location of the unit.

• Energy Information Administration (EIA) Plant number (US units only).


Recommendations –Ownership/Retirement

• NERC shall track ownership changes as generating units are sold to other operating companies. These changes will include the name of the new owners and the date of generating unit transfer.

(Please note that GADS has been collecting ownership transfers for 10 years with no burden on reporters.)

• Proposed or projected generating units retirement dates shall not be collected in GADS

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