Energy Storage Offsets Rooftop Solar. Increases Consumption. By the Numbers:

A report in Nature Energy by Robert Fares and Michael Webber says that:

• battery storage system could reduce peak power demand by 8% to 32%
• battery storage system could reduce peak power injections by anywhere from 5% to 42%
• storage inefficiencies increase annual energy consumption on average by 324 kWh to 591 kWh per household
•  storage indirectly increases emissions of carbon dioxide by 153 to 303 kilograms, of sulfur dioxide by 0.03 to 0.20 kg, and of nitrogen oxide by 0.04 to 0.26 kg per household.

The data is based on home usage in Austin, TX.

Yes, you read that correctly, energy storage inefficiencies increase energy consumption under current capacity and storage.

Utility Dive | Residential storage can undercut benefits of rooftop solar, says new study