Full Breakdown
Base Power Accelerates Home Battery Rollout with $1 B Series D Funding
8/7/2026, 1:23:14 AM
Series D Funding Fuels Nationwide Expansion
Base Power, the residential energy-storage startup co-founded by Zach Dell in 2023, announced a $1 billion Series D financing round that lifted its post-money valuation to $13 billion—up from $4 billion less than a year earlier. The round was co-led by Ribbit Capital, Addition, Valor Equity Partners, and JPMorgan Chase’s Strategic Investment Group, with existing backers such as Thrive Capital, a16z, Lightspeed, Trust Ventures and CapitalG also reinvesting. The capital is earmarked for scaling domestic battery manufacturing, expanding the company’s footprint beyond Texas into Illinois and additional states, and accelerating pricing experiments tied to wholesale electricity market signals.
Business Model and Market Position
Base Power markets its “one-stop shop” for residential electricity and backup power, positioning itself as an infrastructure company rather than a high-margin consumer product seller. The firm owns and operates assets in wholesale power markets, earning revenue by charging batteries when grid prices are low and discharging them when prices rise. Installation fees are capped at $695, with a flat monthly membership of $19, a model the company likens to a Costco-style subscription.
Product Highlights and Production Scale
The flagship Base Core home battery system stores 39.2 kilowatt-hours (with a dual-battery option reaching 78.4 kWh), making it one of the largest capacities available for residential use. Production occurs at Base Factory 1 in Austin, Texas, which is already delivering thousands of systems each month. A second, larger factory is under construction and slated for completion in 2027. As of August 2026, the company’s deployed battery fleet exceeds 500 MWh, and partnerships with utilities provide more than 200 MW of generation capacity.
Official Statements & Responses
residential electricity market. He highlighted the strategic focus on deregulated markets and collaborations with monopoly utilities to broaden reach. Dell also explained that pricing will be dynamic, with experiments planned to align installation costs and membership fees with real-time market signals as Base enters new regions such as Illinois, where introductory installation offers have dropped to $95.
Justin Lopas, Base Power’s COO and co-founder, underscored the importance of domestic manufacturing for critical infrastructure, linking the new financing to a broader effort to repatriate production capabilities.
Verbatim Quotes
- “We want to bring Base to every neighborhood in America over time,” — Zach Dell, dell technologies founder
- “Our business model, which is very unique, is that we’re really an infrastructure company,” — Zach Dell, dell technologies founder
- “This battery is designed to be a grid resource,” — Zach Dell, dell technologies founder
- “We’ll likely experiment with pricing based on market signals as we enter different markets,” — Zach Dell, dell technologies founder
- “We brought together the best hardware and software engineers in the world to build Core – a battery designed to protect American homes while supporting the grid,” — Zach Dell, dell technologies founder
What’s Next
Base Power plans to complete its second manufacturing facility in 2027, which will increase monthly output capacity substantially. The company will continue testing market-responsive pricing structures as it expands into additional states, targeting both deregulated and regulated electricity markets. Ongoing collaborations with utilities aim to integrate more than 200 MW of generation capacity, reinforcing the grid while providing homeowners with reliable, affordable backup power.
