Innovative technology for commercial buildings using photovoltaic source and battery storage

This article describes typical services within a building provided by a combination of a battery energy storage system with PV source. Based on the achievements in the photovoltaic and battery research and development sector in the last decade this technology becomes more available and also more affordable. Advanced control algorithms operating the system in defined optimal conditions are described. Lifetime of the system, as well as the battery, is also taken into account. Emphasis is placed on the irradiation prediction which is responsible for accurate PV yield estimation. Operational modes and operational data of an administrative building are presented together with a predictive control based on forecasting and nowcasting service.