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RTWG Report to TAC

RTWG Report to TAC. August 6, 2009 Henry Durrwachter. Report from July RTWG Meeting. Reviewed whitepaper on Wind Ramping Events (possible ways to deal with both low and high ramp rates of wind generation) – recommendation to be discussed at the August RTWG meeting.

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RTWG Report to TAC

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  1. RTWG Report to TAC August 6, 2009 Henry Durrwachter

  2. Report from July RTWG Meeting • Reviewed whitepaper on Wind Ramping Events (possible ways to deal with both low and high ramp rates of wind generation) – recommendation to be discussed at the August RTWG meeting. • Reviewed results of the “NERC Special Report: Accommodating High Levels of Variable Generation” and determined that all issues were covered by the TRIP with the possible exception of distributed variable generation – that issue will be added to the TRIP.

  3. Report from July RTWG Meeting • Discussed ERCOT Protocols and Operating Guide requirements for Ancillary Services with a Solar Thermal technology developer (Acciona Solar). • Reviewed ERCOT data related to capacity value of wind at peak.

  4. Capacity Value of Wind Capacity Value of Wind • ERCOT now posts hourly load and wind data for the calendar years 2006, 2007 and 2008, which includes the installed amount of wind. • At the peak load hour, the capacity value* of wind was: • 2006 = 17.6% • 2007 = 3.9% • 2008 = 11.7% • Average (2006-2008) = 11.1% • Unofficial ERCOT data for 2009 (July 8) indicates that the capacity value for wind was higher than previous years (1,610 MW out of 8,135 MW or 19.8%). *where capacity value = MW produced/MW installed

  5. Capacity Value of Wind Capacity Value of Wind

  6. Future Work • Take input from ERCOT Board on draft TRIP with the intent to finalize that document during the fall of 2009 (August 17) • Begin review of solar technologies and their impact on grid planning and operations • Presentations on solar technologies (September) • Presentation on flywheel storage technology (August or September)

  7. Questions?

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