The court analyzed the history and structure of US electric grid regulation. Regulation of generating capacity is left to the states, with federal involvement only for interstate transmission lines. The Federal Power Act "expressly denies [Federal Energy Regulatory Commission] authority to regulate generation facilities directly."

The court interpreted this as Congress intending federal intervention at generation facilities to be rare and only for immediate shortfalls. "Indeterminate assertions of summer electricity shortfalls are not what Congress meant by 'emergency,'" the judges concluded. Here, a carefully planned closure ensured a newer facility compensated for the plant's closure.

"Permitting DOE to compel generation in a situation that can be resolved through the ordinary resource adequacy planning mechanisms or a request under section 202(b) would render meaningless the constraints on federal power that Congress imposed throughout the Act," the decision concluded. The court voided the DOE's emergency declaration.

Barring an appeal, Michigan can continue its planned shutdown, relieving local ratepayers. The same logic will apply to other cases where the DOE forced plants to stay open. According to the DOE, it has issued over 55 emergency orders in 2026 alone, more than double the total between 2000 and 2025.