Climate tech investors are descending on New York this week for Climate Week, where the gravitational pull of data centers has rewritten the rules of what counts as a bankable green innovation.
Political momentum for overhauling the broader energy grid has faded. Yet artificial intelligence companies now face brutal cost pressures to slash their power and water consumption. That dynamic has transformed data centers into a financial magnet, drawing unprecedented capital from Silicon Valley and Wall Street alike. Much of that money still flows into conventional energy assets. But a meaningful slice is trickling toward technologies originally built for the energy transition.
Tom Chi, founding partner at deep tech investor At One Ventures, calls the moment unusually hot for companies his firm already backed. One portfolio startup, Blue Energy, builds modular components for advanced nuclear plants that drastically shorten construction timelines. The company’s pre-IPO valuation has jumped by orders of magnitude as data center operators scramble for clean, reliable power.
That growth has acted like a beacon for investors who never touched energy infrastructure before. Chi says his companies’ funding rounds have become crowded with newcomers. These are firms that spent their entire history doing enterprise software deals, he notes, and now they are trying to understand desiccants for cooling systems.
Meanwhile, the AI-driven focus is pushing climate funds into strange territory. S2G recently invested in Alliance North America, which manufactures high-end diesel generators with significantly lower emissions. A technology that enables fossil fuel consumption would normally fall outside the firm’s mandate, according to S2G’s O’Sullivan. But because the generators can power data centers far more efficiently than conventional models, the opportunity has mushroomed. Relative to standard equipment, he says, the deal amounts to decarbonizing by stealth.
