Short term power forecasting
Clients around the world rely on the accuracy of GL Garrad Hassan's forecasting service which makes wind predictable, just like more conventional energy resources.
With global wind energy forecasting expertise and experience going back nearly three decades, GL Garrad Hassan now operates services for a range of clients, with over 33 GW of wind, in countries all around the world. Utilities, energy traders, wind farm operators and ISOs rely on this highly accurate and reliable forecasting service with its operational availability of 99.9%.
The forecasting service combines GL Garrad Hassan’s wind energy expertise and experience with the best weather model inputs to provide state-of-the-art forecasts of wind farm output. The service is operated from a secure server farm in close proximity to the Internet backbone, to which data are sent and from which the power forecasts are issued in client-specific formats.
The forecasting process involves four steps: first, forecasts of meteorological parameters for the wind farm area are obtained from numerical weather prediction (NWP) providers; second, the weather input is refined to suit the wind farm site and sophisticated wind farm models run; third, detailed data from the wind farm are used to run auto-adaptive algorithms, which adjust the forecast to site-specific conditions; fourth, the client is provided with regularly updated site-specific forecasts of wind farm output delivered by e-mail, FTP or website. Typically, forecasts are updated hourly and each one contains 7-day predictions, but alternative frequencies and horizons can be easily accommodated.