NATHANIEL WOOD FOR WIRED
Musk, ever the showman, unveiled his grand “Tesla Energy” scheme to electrify the world on Thursday night, and it actually makes a lot of sense. Tesla, which is in the middle of building a vast “Gigafactory” battery production plant in the Nevada desert, plans to offer new versions of the batteries it puts in its Model S car to residential, commercial, and utility customers.
The “Powerwall Home Battery” offers either 7- or 10-kWh of storage, and will allow consumers to store energy they produce with a solar array—even go off the grid if they want. It’s available for small businesses as well, while bigger operations will want the Powerpack, a 100kWh refrigerator-esque unit, to use more renewable energy, avoid peak demand charges, and keep things running in the event of a power outage. These larger batteries are being produced for utilities as well, and can help the energy providers improve demand response and increase their use of renewables.