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Texas Wind Energy. American Meteorological Society Summer Community Meeting – Norman Oklahoma Henry Durrwachter, P.E. August 12, 2009. Installed Wind Capacity. Electric Reliability Council of Texas (ERCOT). The only intra-state electric grid in the U.S.

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texas wind energy

Texas Wind Energy

American Meteorological Society

Summer Community Meeting – Norman Oklahoma

Henry Durrwachter, P.E.

August 12, 2009

electric reliability council of texas ercot
Electric Reliability Council of Texas (ERCOT)
  • The only intra-state electric grid in the U.S.
  • 3 Direct Current (DC) ties to the Eastern Interconnect (2) or Mexico (1)
  • Serves about 20 million customers (85% of Texas load) over 200,000 sq. miles of territory (75%)
  • 38,000 miles of high voltage transmission lines (345 kV, 138 kv and 69 kV)
  • Non-profit organization regulated by the Public Utility Commission of Texas (PUCT)

Graphic courtesy of ERCOT

ercot reserve margin and energy mix 2008
ERCOT Reserve Margin and Energy Mix 2008
  • 169 generating plants (72,500 MW of capacity at peak)
  • 2008 Peak demand = 62,174 MW
  • 16.6% Reserve Margin* (12.5% minimum)
  • 580+ thermal generation units
  • Over 8,000 MW of wind generation

*Estimated

309 Million MWh

installed wind generation in texas
Installed Wind Generation in Texas

8,290 MW Installed as of 12-31-2008

31

33

In ERCOT

Outside ERCOT

hourly variability of wind

High ramp rates

Hourly Variability of Wind

January 5, 2007 – Total Installed Wind Capacity = 2,790 MW

scenario 2 18 456 mw of wind 4 93 billion
Scenario 2 - 18,456 MW of Wind - $4.93 Billion

Miles of New ROW:

345 kV = 2,334

138 kV = 42

questions
Questions

Q: What is the proper role for government, industry and academia?

  • Government – provide access to appropriate weather data
  • Industry – willingness to utilize the latest tools and techniques to better forecast wind energy production
  • Academia – research better ways to forecast wind energy production

Q: What are the primary knowledge gaps?

  • Correct modeling and forecasting of low-level jets and their impact on wind generation production (according to our staff meteorologist)

Q: How can all parties leverage their expertise to move the nation forward to improve the adoption of renewables?

  • Learn from others’ experiences
  • Recognize the shortcomings of renewable technologies (variable fuel supply, non-dispatchability) and
  • create innovative methods, procedures or incentives to address those shortcomings through new or existing generating technologies or control systems.