Rocky Mountain Power Wattsmart Battery Program

This new model for existing rooftop solar customers transforms thousands of intermittent rooftop solar systems into firm dispatchable grid assets by retrofitting each home with a Sonnen battery. In other words, their 50,000 customers with rooftop solar systems can now be equipped with batteries controlled by the local utility for the greater operation of the grid, removing many of the grid integration issues inherent with existing stand-alone rooftop solar systems.