Key Highlights

  • FERC rejected Commonwealth Edison's bid to cancel PowerHouse Hillwood's 1.8-gigawatt data-center power contract.
  • The contract is valued at roughly USD 20 billion.
  • The dispute centers on a disputed USD 1 letter-of-credit backing mechanism and is now headed back to court.
  • The fight also involves competing service agreements with Microsoft that FERC had approved in a separate July 2026 order.

Regulators Reject the Cancellation Bid

The Federal Energy Regulatory Commission rejected Commonwealth Edison's attempt to cancel PowerHouse Hillwood's 1.8-gigawatt data-center power contract, valued at roughly USD 20 billion, sending the dispute back to court rather than allowing ComEd to unwind the agreement administratively. Commonwealth Edison, commonly known as ComEd, operates as a Subsidiary of Exelon Corporation (NASDAQ:EXC), making the outcome of this dispute relevant to Exelon's broader regulatory standing in Illinois as well.

The Dollar Letter of Credit at the Center of the Dispute

The controversy centers on a disputed USD 1 letter-of-credit backing mechanism underlying the PowerHouse Hillwood agreement, a financing structure that critics have argued provides insufficient financial security given the contract's massive scale, while supporters contend it reflects standard practice for agreements of this type at this early stage of development. The dispute also involves competing service agreements with Microsoft Corporation (NASDAQ:MSFT) that FERC had separately approved in a July 2026 order, adding further complexity to the overall regulatory picture.

Local and Regulatory Ripple Effects

The cancellation dispute directly affects planned data-center development in the Rockford, Illinois area tied to the ComEd agreement, illustrating how these large-scale power contract disputes carry tangible local economic development implications beyond the regulatory and financial questions at their core. The Illinois Attorney General had earlier filed formal objections to ComEd's data-center service agreements at FERC, adding a state-level regulatory dimension to a dispute that now returns to the courts for further resolution.

Where Things Stand

FERC's rejection of ComEd's bid to cancel the roughly USD 20 billion PowerHouse Hillwood data-center power contract keeps the dispute over its disputed USD 1 letter-of-credit backing moving through the court system rather than resolving it administratively. The outcome will likely have significant implications for how large-scale data-center power agreements are structured and financially secured going forward.