A provider of real-time renewable-energy data completed its hub-height wind data network throughout the Electric Reliability Council of Texas (ERCOT) region. With new Texas locations, Onsemble will offer real-time, hub-height wind data near 95% of the state’s wind farms. Completion and launch of the Onsemble Network in ERCOT makes it the first independent source of hub-height wind observations in the region.
The network equates to more than 100 hub-height observation points from towers located close to Texas wind farms. Sensors measure wind speed, direction, and temperature, and provide high-resolution data reports in 10-minute intervals to strengthen wind energy forecasts critical to grid operators, utilities, power traders, and wind-farm operators. Internal studies show that Onsemble’s real-time data could potentially provide double-digit reductions in forecast error from short-term out to 24-hour lead times. These improvements to forecasting accuracy come from better data—captured at hub-height and other levels throughout the rotor plane.
“The electrical grid in Texas, where wind represents about 10% of the state’s energy, has already experienced grid reliability threats as a result of quick changes in the wind. These events could become even more dangerous as wind energy grows and becomes a larger piece of the energy mix,” says Jon Kilberg, Onsemble founder and president of Torch Renewable Energy LLC. “For wind energy to prosper, the industry needs localized, hub-height data to improve wind forecasts. With better forecasts, grid operators can better manage energy loads and market participants can better anticipate price changes.”
In addition to ERCOT, the company is operating its real-time data network in the Bonneville Power Administration, the Public Service Company of Colorado, and the Southwest Power Pool utility markets, with a nationwide build-out planned through 2012.
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