Base Power raises another $1B to save the grid using backyard batteries

🚨 Flash Sale 🚨 Get $100 off your Disrupt 2026 ticket Get $400 off your Disrupt 2026 ticket: REGISTER NOW. Close TechCrunch Desktop Logo TechCrunch Mobile Logo LatestStartupsVentureAppleSecurityAIAppsDisrupt 2026 EventsPodcastsNewsletters SearchSubmit Site Search Toggle Mega Menu Toggle Topics Latest AI Amazon Apps Biotech & Health Climate Cloud Computing Commerce Crypto Enterprise EVs Fintech Fundraising Gadgets Gaming Google Government & Policy Hardware Instagram Layoffs Media & Entertainment Meta Microsoft Privacy Robotics Security Social Space Startups TikTok Transportation Venture More from TechCrunch Staff Events Startup Battlefield StrictlyVC Newsletters Podcasts Videos Partner Content TechCrunch Brand Studio Crunchboard Contact Us Image Credits:Base Power Climate Base Power raises another $1B to save the grid using backyard batteries Tim De Chant 9:46 AM PDT · August 3, 2026 Where most energy storage companies look for big tracts of land near large connections to the grid, Base Power is betting that it can beat them all by putting batteries in people’s backyards instead. It appears to be paying off, with Base Power installing more than 500 megawatt-hours of storage over the past few years.

The startup announced today that it has raised another $1 billion less than a year after its last billion-dollar round. The Series D values the company at a $13 billion post-money valuation. Base Power is installing about 100 batteries per day, according to The Wall Street Journal report, and it hopes to double that by the end of the year.

That works out to about 8 megawatt-hours of storage installed per day. Base Power also rolled out a new version of its home battery today, called Base Core. The device is built at its Austin, Texas factory, and it can store 39.2 kilowatt-hours of electricity, significantly more than those of its competitors.

Customers can choose either one or two batteries. Base Power operates in Texas and Illinois. The round arrives as electricity demand has been skyrocketing due to economywide electrification and the rapid pace of AI data center construction.

Over the last several years, the U.S. electrical grid has expanded after decades of stagnation. The surge in demand has strained the grid in many locations, most notably PJM, which hosts a large number of data centers. Portions of Illinois, where Base Power operates, are part of PJM’s territory.

Rather than charge thousands of dollars up front, as most home battery installers do, Base Power offers its batteries the device on a subscription basis. In the Houston area, for example, Base Power charges customers $695 to install a single battery, $19 per month, and 13.1 cents per kilowatt-hour for electricity, which is about the going rate in the region. Base Power, which owns the battery, sells stored electricity back to the grid during periods of high demand.