GH Forecaster is a short term forecasting service used by grid operators, wind farm owners and energy traders.

GH provides online forecast services for clients in 9 countries across 4 continents. GH Forecaster adopts a combined physical/statistical approach. The method utilises weather model inputs from a number of approved suppliers and enhances this data to the site-specific conditions. The refinement of the weather model input and conversion to wind farm power is achieved through the application of high resolution models accounting for the topography and turbine wake effects, and through statistical routines that "learn" using feedback from the site. The combination of data from weather model suppliers provides additional service reliability due to redundancy of input data, and improves forecast accuracy by enabling the application of ensemble forecasting techniques.