Talen subsidiary Susquehanna Nuclear LLC, which operates the 2,494-MW Susquehanna Nuclear plant, asked the Federal Energy Regulatory Commission in June to authorize the interconnection service agreement with local transmission operator PPL Corp. American Electric Power (AEP) and Exelon protested that request, warning that ratepayers would bear another $58 million to $140 million per year in transmission system costs, but Talen responded July 5 that the "behind-the-meter configuration" requires the datacenter to pay delivery facility costs, calling on FERC to reject the utilities' challenge. "The core assumption of the [interconnection service agreement] — that load colocated at a nuclear plant can be fully isolated from the grid, is an illusion — and potentially a dangerous one," AEP and Exelon countered in a July 17 FERC filing, emphasizing "the clear intention of attempting to allow the load to avoid PJM transmission charges."