The pledge has over 300 backers, including data center developers, cooperatives, utility companies, and state governors. Huang says EPA’s move is “clearing the regulatory fog,” but that EPA decides Acid Rain Program participation in individual situations anyway. The barrier to islanded power generators being paired with data center development, she says, is not EPA regulations but instead whether the islanded power plant is actually detached from grid benefits. The issue is still under review, particularly by PJM, the largest power grid operator in the United States. For the Trump administration, there has been a lot of pushback from promoting data center development.