Method and system for controlling energy storage device or load

Abstract

A system and method (300) for controlling an energy storage device or load are provided. The method comprises generating a hybrid tariff based on a weighted combination of a tariff and network cost. An energy usage prediction and, where renewable or other generation sources are available, an energy generation prediction are generated (302, 304) for time periods for each site in a plurality of sites. The method further comprises generating (306), for the site, a plan to selectively store energy in an energy storage device at the site, discharge energy from the energy storage device, or control when a load at the given site consumes energy based at least in part on optimising the cost of energy consumed according to the hybrid tariff based on the energy usage and generation prediction. [Figure 3]