This disclosure describes techniques for dynamic adjustment of the reserve battery backup capacity and load shifting battery capacity in solar installations. Power generation over time for the day is predicted based on weather conditions, angle of incidence of the sun to the panel, season, etc. Power usage for the day is estimated based on user-permitted data on historical usage patterns, day of week, etc. A predicted net battery usage is determined based on the difference between the predicted power generation and usage. The load shift battery capacity needed for the day is determined by integrating the predicted net battery usage. The minimum reserve battery capacity is determined by calculating the remainder of the battery capacity. Optionally, the battery controller can be integrated with a home automation controller, and HVAC settings can be used to determine a predicted off-grid time under different HVAC settings.

Creative Commons License

Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 License.