Stem's Athena Forecasts
The key to optimizing energy storage is having viable forecasts for solar production and facility loads: a high forecast does not use the battery enough while a low forecast uses the battery too fast. Stem’s Athena AI-driven new software features improve customer savings by approximately 5% year-over-year. With more than 1,000 operational sites, Athena’s forecasting models can be customized to each site. Athena now automatically adjusts the forecast for each site every three months – including selecting data for a customized forecasting model. Safeguards were also added to notify Stem if forecasts produce anomalous results. Lastly, Athena’s forecasts are now taking into account the difference between days when facilities have normal occupancy versus reduced occupancy due to COVID-19 shelter-in-place measures, allowing Athena to produce reliable forecasts even when site conditions change.