Battery storage paired with residential rooftop solar arrays are not a thing of the distant future. It’s happening now and companies like SunPower and SolarCity are already selling package systems.

Battery storage paired with residential rooftop solar arrays are not a thing of the distant future. It’s happening now and companies like SunPower and SolarCity are already selling package systems.
As most major US utility companies, in their concern over self-preservation, try in vane to squash net metering programs and slow the growth of the solar industry, NRG is innovating and evolving.
The solar leasing model, which is widely believed to have made rooftop solar installations more mainstream and which is frequently credited for the meteoric rise in residential solar installations, could be losing market share.
Rooftop solar panels are proving profitable when homeowners sell, according to a recent study from the Lawrence Berkley National Laboratory.