By the numbers: FirstEnergy Q24.1 GWData center pipeline in West Virginia, up 155% from 1.6 GW in the first quarter. The company's data center contracts and its contract pipeline totals about 70% of its July system peak load of 34.8 GW, according to Tierney. Besides building transmission for data centers, FirstEnergy is planning power plants for them. Although the project is mainly for potential data center load, Mon Power wants to level a surcharge on its customers to pay for the projects' construction, according to the CPCN application. Where service agreements are later executed between FirstEnergy and data centers and approved by the West Virginia PSC, those data center owners would be responsible for their share of the surcharge, Michon Ellis, a FirstEnergy spokesman, said in an email.