Funding and M&A Roundup: Base Power Raises $1 Billion

NineDot Energy secures $175 million corporate debt facility

October 15, 2025

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From: Mercom Capital Group

Texas-based Base Power has raised $1 billion in Series C funding, led by Addition, to accelerate the deployment of its home battery storage solutions. Existing backers, such as Trust Ventures, Valor Equity Partners, Thrive Capital, Lightspeed, Andreessen Horowitz, Altimeter, StepStone, Elad Gil, 137 Ventures, Terrain, and Waybury, returned for the round. New investors include Ribbit, CapitalG, Spark, BOND, Lowercarbon, Avenir, Glade Brook, Positive Sum, and 1789.

NineDot Energy, a community-scale battery energy storage systems developer, closed a $175 million revolving debt facility with Deutsche Bank. The financing will support NineDot’s full development cycle, from grid interconnection deposits to equipment procurement and project construction. This new facility also enabled the company to repay its existing revolving credit facility, which had previously been used to fund interconnection deposits with NY Green Bank.

Enurgen, a developer of software solutions for assessing solar energy yield performance, raised $4.1 million in seed funding. The round was co-led by Business Development Bank of Canada, Brightspark, and Diagram, with participation from MaRS IAF. The company’s yield modeling software leverages physics-based models across the lifecycle of solar assets, and the investment is expected to accelerate the global expansion of Enurgen’s flagship software platform.

Glance Finance has announced an investment of ₹3.17 million (~$35,770.19) in the power transformer solutions company, Kotsons, through the acquisition of 62,400 equity shares. Each share carries a face value of ₹10 (~$0.11) and has been acquired at a price of ₹50.85 (~$0.57)/share. Following this transaction, Glance Finance’s total shareholding in KPL will increase from 719,656 shares, representing 5.14% of KPL’s equity, to 782,056 shares, equivalent to 5.59%. The acquisition is being carried out through the secondary market and is expected to be completed by October 31, 2025.

T1 Energy, a solar and battery manufacturing company, has announced the acquisition of a minority stake in Talon PV, a solar cell manufacturer. The investment was made through a Simple Agreement for Future Equity (SAFE), with both companies continuing to discuss the potential expansion of their strategic partnership in the future. Both Texas-based companies aim to utilize advanced manufacturing technologies to produce TOPCon solar cells in the U.S.

For reports and trackers on funding and M&A transactions in solar, energy storage, and smart grid sectors, click here.

Read last week’s funding roundup.

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