The artificial intelligence boom is rescuing America's clean energy industry from years of decline, channeling billions into wind farms, solar arrays, and battery systems. Yet the same datacenter explosion that is fueling this renewable surge is also forcing utilities to fire up old coal plants and build new natural gas facilities, creating a paradox that underscores the tension between environmental promises and hard infrastructure realities.
Datacenters need vast amounts of electricity, and they need it now. Grid connections are backed up by as much as 12 years due to regulatory delays, supply chain problems, and generation shortages. That bottleneck is forcing tech giants to bankroll their own power generation, and when speed matters most, they are turning to whatever works fastest and cheapest: batteries, solar, wind, fuel cells, and sometimes natural gas turbines.
The effect on renewable energy companies has been dramatic. The IShares Global Clean Energy ETF, tracking roughly 100 clean energy stocks, had plummeted about 80 percent from late 2021 through early 2025. Then datacenters arrived. The fund is now up roughly 52 percent over the past year, pulling the entire sector out of a deep slump triggered by inflation, canceled government subsidies, and flat electricity demand.
Douglas Jester, a clean energy consultant at 5 Lakes Energy who advises on utility regulation in the upper Midwest, sees the contradiction clearly. "It is unquestionable that the increase in electricity sales is driving an increase in renewables," he said. "It's right to think about it as a paradox."
Google and other tech firms are moving aggressively into power generation. Google just built the world's largest grid-scale battery to feed a datacenter in Minnesota and acquired an energy company to expand renewable projects, including an off-grid facility in Texas that will run on wind, solar, batteries, and gas. "They're setting up to be vertically integrated to supply their own electricity," Jester said, "and they'll drive a lot of development."
In some cases, the results favor renewable infrastructure. Wisconsin regulators have greenlit about 15 wind or solar facilities to support Microsoft and Oracle datacenters, though natural gas components are included. In Michigan, DTE Energy is building a 330-megawatt battery system rather than a new gas plant to power a 1.4-gigawatt Oracle datacenter, a choice motivated by Oracle's aggressive timeline and the company's renewable preference.
Not all datacenter power solutions are created equal. Bloom Energy, a fast-growing company producing fuel cells that generate electricity through an electrochemical process, does not emit sulfur oxides or particulate matter like traditional turbines do, but it still produces carbon dioxide. The technology can be deployed in as little as 90 days, making it attractive to datacenter owners racing to meet demand. Bloom announced plans to supply Oracle and is doubling its manufacturing capacity by the end of 2026. Its stock has surged 1,338 percent over the past year.
UC Berkeley energy economist Lucas Davis cautions that tech companies are not driven by climate virtue. "I would say tech is desperate for electricity and oftentimes it's going to whatever is the quickest," he said. "It could be the fuel cell, it could be natural gas turbines, or it could be solar and batteries, but the underlying demand is electricity."
The darker side of the boom remains visible. Utilities across the country are building new fossil-fuel plants or keeping aging gas and coal facilities online to meet datacenter demands. In Michigan and other states, datacenters have effectively derailed planned grid transitions to renewable energy. The gas industry, including fracking firms and pipeline companies, is profiting handsomely from the datacenter expansion, and the Trump administration's friendly stance toward fossil fuels provides additional tailwinds.
There are risks. Energy demand is notoriously hard to predict, and many observers warn of a potential AI bubble that could pop and crater datacenter growth. But a portfolio manager overseeing BlackRock's flagship sustainability funds told Bloomberg the clean energy sector is positioned to weather any downturn. "We don't correlate any potential 'AI bust' as an existential risk to sustainable energy equities," the manager said. "Sustainable energy equities could stand to even further benefit as US rates come down and we see a broadening out of the market."
Author James Rodriguez: "The datacenter boom is pulling renewables out of the fire, but it's also shoving fossil fuels back into the grid where they were supposed to be phased out."
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