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Sunrun begins installing Tesla home batteries

Lucas Mearian | May 16, 2016
The BrightBox energy storage system combines rooftop solar panels with the Powerwall wall-mounted lithium-ion battery

The 10kWh Powerwall would have been optimized for backup and the 7kWh battery is meant for daily use. Both can be connected to rooftop solar panels or the grid to provide power, either during blackouts or periods of lower energy generation. Earlier this year, after removing references to the 10kWh Powerwall from its website, Tesla said it would no longer be building the 10kWh Powerwall.

The 7kWh Powerwall battery, which is 51.3-in x 34-in x 7.2-in, is scheduled for release this summer by Tesla Energy, a subsidiary of Tesla Motors.

Up to nine batteries can be daisy-chained together, providing up to 63kWh capacity (with the 7kWh version). The batteries come with a 10-year warranty.


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