WSI and Onsemble Launch WindCast RT for ERCOT

New Energy Trading Tool Provides Exclusive Access to Real-Time, Hub-Height Observations and Superior, Bal-Day Wind Forecasts

Andover, MA June 28, 2012 - WSI (Weather Services International), the most trusted global weather solutions provider, and Onsemble , operator of the only hub-height wind observation network in ERCOT (Electric Reliability Council of Texas), today announced the introduction of WindCast RT (Real Time). WindCast RT is an energy trading decision support tool providing a graphical visualization of wind speed and direction in combination with a wind generation forecast that is updated each hour. WindCast RT forecasts are more skillful than any other ERCOT wind updates currently available.

WindCast RT combines best-of-breed features from both Onsemble and WSI. The tool provides real-time readings from Onsemble’s West Texas network of sensors capturing wind data. Every ten minutes, through a mapping interface, clients can view the latest wind speed and direction from each of Onsemble’s towers, which are strategically located near existing wind farms. WSI combines this with its leading RPM mesoscale model, delivering an updated forecast every hour, up to twelve hours ahead.

“Because wind generation has become an increasingly large percentage of the power stack, monitoring and forecasting of wind fluctuations is a critical piece of the bal-day trading puzzle and - a vital component of success for energy traders. WindCast RT has these capabilities and provides traders with a tool that will improve bal-day trading decisions impacted by wind generation,” said Robert Boucher, WSI Product Director, Energy & Risk Services. “Synthesizing real-time, hub-height observations and skillful forecasts, WindCast RT offers an important competitive edge that is essential to capitalizing on the market’s wind-driven price fluctuations.“

How it Works
The WindCast RT platform allows traders to compare the six most recent RPM and official ERCOT hourly forecasts within the same application interface for better understanding of forecast trends. WindCast RT’s information is constantly updated in real-time and can be aggregated across multiple regions or charted to reflect a specific region of the market, such as West Texas.

WindCast RT offers:
• Real-time hub-height observations from Onsemble’s network of sensors
• New WSI RPM-based forecasts of regional and ERCOT wind generation. Forecasts are issued every hour, out to 12-hours
• Wind data collected near the exact points of energy generation and at hub height – where it matters most
• Real-time wind generation monitoring in key western wind zones
• The ability to spot trends early, benchmark wind plant performance and continually stay in touch with the market

“Now, through the Onsemble network, traders will be able to access the same information that the large wind farm operators have--real-time insight into deviations from expected wind energy production,” said Anish Parikh, Onsemble Vice President. “Combining that information with the power of WSI's hourly-updating RPM model, WindCast RT will provide a truly new perspective that will allow traders to visualize and act on wind-based opportunities"

To learn more about WindCast RT contact Robert Boucher at or 978-983-6558.

About WSI Corporation
WSI is the most trusted source of weather information across the globe. Top energy trading groups, utility companies, insurance professionals and financial institutions worldwide trust WSI to supply them with easy-to-use, timely and expert weather guidance to help anticipate market volatility, mitigate risk and make critical decisions with confidence. WSI is a member of The Weather Channel Companies and is headquartered in Andover, Massachusetts with offices in Birmingham, England. The Weather Channel Companies are owned by a consortium made up of NBC Universal and the private equity firms The Blackstone Group and Bain Capital. For more information, please visit us on the web at or call us at 877.WSI.CORP or +

About Onsemble
Onsemble combines local weather information with key infrastructure assets to inform hourly and real-time decision-making in energy. A wholly owned division of Torch Energy Advisors Inc. (TEAI), Onsemble operates a nationwide network of meteorological sensors near wind plants to bring real-time meteorological observations to forecasters, market participants and grid operators. For more information visit or call 720-432-DATA (3282).

Linda Maynard
WSI Corporation

Editorial Contact:
Barbara Rudolph
Rudolph Communications, LLC
(781) 229-1811