Base Power

Energy Storage · Climate Tech · Hardware

Launch

Base Power launches 39.2-kWh Core battery, raises $1B Series D

The battery turns home backyards into a networked power plant that can answer grid demand spikes faster than new transmission lines can be built.

• Base Power launched Base Core, a 39.2-kWh home battery built at its Austin factory, alongside a $1 billion Series D at a $13 billion post-money valuation led by Ribbit, Addition, Valor Equity Partners and JPMorganChase's Strategic Investment Group.
• Founded by Zach Dell and Justin Lopas, Base designs, builds, installs and retains ownership of the batteries, using the networked fleet as a virtual power plant that sells electricity back during peak demand.
• Core stores roughly three times a typical home battery's capacity, switches a house to backup power in 50 milliseconds, and can withstand submersion up to 3 feet and temperatures from -22F to 122F.
• Customers don't buy the battery outright; Base charges a $695 install fee plus a $19 monthly membership in Texas, subsidized by revenue Base earns selling stored power back to the grid.
• Base's valuation grew about 3.25x in under 10 months, bringing total capital raised to more than $2.5 billion, with over 23,000 batteries installed and a fleet exceeding 500 megawatt-hours.
• Base has expanded beyond Texas into Illinois and signed utility partnerships with El Paso Electric, Austin Energy and CoServ for over 200 MW of capacity as AI and electrification strain the US grid.
• Distributed home batteries are increasingly pitched as faster-to-deploy grid infrastructure than new power plants or transmission lines, a bet reflected in Base's rapid valuation jump.