Voltus Raises $225M Series D to Turn Flexible Loads Into Grid Capacity
Voltus raised an oversubscribed $225 million Series D to scale its distributed-energy platform toward 20 GW, with data-center capacity emerging as a central use case.
Climate Tech Venture Capital & Clean Energy Funding
Climate tech venture capital spans renewable energy, grid modernization, carbon capture, sustainable materials, and software for emissions tracking. Our climate-tech coverage tracks the funds and rounds addressing the energy transition and decarbonization economy.
Climate Tech VC Themes
- Energy infrastructure: Grid, storage, and generation technologies
- Industrial decarbonization: Manufacturing, chemicals, and heavy industry
- Carbon markets: Measurement, removal, and offset platforms
- Policy tailwinds: Government incentives and corporate net-zero commitments
Browse climate tech venture capital articles below.
Related Articles (62 articles)
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Reverion Raises $175M Series B to Scale Carbon-Negative Power Plants
German energy startup Reverion raised $175 million in Series B funding led by Kembara to scale reversible solid-oxide power plants and expand manufacturing capacity tenfold.
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Mazama Energy’s $135M: Series B, Grants, or Both?
Mazama announced $135 million of new capital on September 17, 2026, including an oversubscribed Series B led by Centaurus and Doerr Capital. Axios reports Series B funding and grants. Valuation was not disclosed. Newberry’s 331°C well is the proof; commercial power is not.
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Nomos’ €20M: Index Ventures Funds Europe’s Embedded Utility Layer
Index Ventures led €20 million into Berlin’s Nomos — a regulated German electricity supplier that white-labels power plans through solar, battery, heat-pump, and EV hardware partners. Round unlabeled; valuation undisclosed; ~€22M total with prior Speedinvest pre-seed.
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Open Cosmos’s €300M Series C: Profitable European Satellites at Factory Scale
Open Cosmos closed €300M (~$351M) Series C led by ETF Partners on September 14, 2026 — with LocalGlobe’s Phoenix Court in the syndicate — after five years of profitable growth, $370M+ contracts, and one-satellite-per-day manufacturing capacity (company).
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Wint’s $36M Series D: LIP and Inven Scale AI Water Intelligence
Wint raised $36M Series D co-led by LIP Ventures and Inven Capital on Sep 9, 2026 — after Grosvenor’s strategic bet — as CRE owners and insurers treat water damage as a preventable ops risk.