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Base Power raises $1B for large-capacity home battery rollout

By GridDigest Editorial · August 5, 2026 · synthesized from 3 sources

Base Power raises $1B for large-capacity home battery rollout

Base Power unveiled Core, a 39.2-kWh residential battery system designed to power homes for up to 36 hours and install in under an hour. The company secured $1 billion in funding for commercial deployment.

Texas-based home battery startup Base Power has secured an additional $1 billion in fresh funding, pushing its valuation from $4 billion to $13 billion and underscoring surging investor appetite for residential energy storage. The latest round was led by Ribbit, Addition, and Valor Equity Partners.

A Rapid Fundraising Trajectory

The new capital raise follows a previous $1 billion round closed just last October, meaning Base Power has now pulled in $2 billion in roughly a year. The speed of successive billion-dollar rounds reflects both growing demand for home battery systems and investor confidence in the company's manufacturing and deployment model. Base Power intends to use the latest proceeds to accelerate geographic expansion beyond its current markets.

Introducing the Base Core

Alongside the funding announcement, Base Power unveiled its newest product: the Base Core, a large-format home battery with a capacity of 39.2 kWh. The company says the system can keep a typical house running for up to 36 hours on a single charge and is engineered for rapid installation, with a targeted deployment time of under one hour. The Base Core is manufactured at Base Power's Austin, Texas facility, making it a domestically produced unit—a detail the company has highlighted as part of its market positioning.

Production and Current Availability

Base Power says it is already producing thousands of battery systems per month at the Austin plant, suggesting the manufacturing operation has reached meaningful scale. The Base Core is currently available to customers in Texas and Illinois, with the new funding expected to support a broader rollout into additional states. The company has not publicly specified which markets are next in its expansion plan.

Market Context

The announcements place Base Power among a small group of residential storage companies attempting to compete at scale with established players in the home battery market. The combination of a U.S.-based manufacturing footprint, a high-capacity product, and back-to-back billion-dollar fundraises positions the startup for an aggressive growth phase, though execution across new geographies and sustained production output will determine whether its elevated valuation holds over time.

Sources (3)

Methodology: This article was synthesized from three source reports covering the same funding announcement and product launch, drawing on complementary details across all three sources.