Zach Dell, son of Dell Technologies founder Michael Dell, has built a $13 billion home battery business named Base. The company, co-founded in 2023, recently secured another $1 billion in a Series D funding round, tripling its valuation from $4 billion in less than a year. Base's business model centers on providing electricity and backup power through battery storage systems, charging a low installation fee (no more than $695, or even $95 in some markets like Illinois) and a flat monthly membership fee of $19, rather than selling the expensive battery hardware upfront.
Base operates as an infrastructure company, owning and managing the battery assets. It generates revenue by selling electricity at below-average rates to homeowners, arbitrating wholesale power prices (charging batteries when prices are low and discharging when high), and offering grid services. This model allows Base to act as a virtual power plant, aggregating thousands of residential batteries (currently about 550 megawatt-hours installed across over 30,000 customers) to support the grid during peak demand and provide backup during outages. Base has transitioned from installing third-party batteries to manufacturing its own, with its first factory in Austin operational and a second larger one planned for 2027. Their new battery can store 39.2 kilowatt-hours of electricity, significantly more than competitors.
Analysts note that Base's $13 billion valuation, with reported 2026 revenue projections near $70 million, represents a high multiple (over 180 times revenue). This valuation is a bet on the company's ability to rapidly scale its installed capacity into a massive dispatchable fleet, resembling a utility without the traditional infrastructure. The business model is described as capital-intensive in its early stages, with profitability dependent on the long-term earnings of each deployed battery unit compared to its installation cost. The company aims for significant market penetration in the residential retail electricity market, which is valued at about $200 billion in the U.S., with global ambitions for markets like the U.K., Germany, and Australia.
