EQT Infrastructure backs $2B small-battery investment for US data centers

EQT Infrastructure is putting up to $2 billion behind a bet that the best way to power America’s AI boom isn’t building massive new power plants. It’s scattering small batteries across industrial sites like confetti at a parade, except this confetti stores electricity for four hours and could reshape how data centers get plugged into the grid. The initiative, announced through EQT’s portfolio company Madison Energy Infrastructure, targets 1 GW of additional distributed energy capacity. To put that in perspective, 1 GW is roughly enough to power 750,000 homes, or a meaningful chunk of the electricity a hyperscale data center cluster devours in a year. The strategy behind distributed batteries Madison’s plan centers on small-scale batteries with a 4-hour discharge duration, installed at industrial and commercial locations including wastewater treatment facilities. The idea is straightforward: place energy storage where people already use power, reduce their electricity costs, and free up grid capacity so data centers can actually get connected. That last part matters more than it sounds. Across the US, data center operators are running into a maddening bottleneck. They can build the ...