An independent study prepared for the Pennsylvania Public Utility Commission warns that rapidly growing electricity demand from data centers could add significant pressure to the regional power grid later this decade.
The analysis examines several demand-growth scenarios for 2027 through 2030. It does not predict that outages will occur. Instead, it identifies conditions under which electric demand could grow faster than new generation and transmission resources are added, increasing reliability risk if planning and construction do not keep pace.
Large data centers can require far more power than ordinary commercial customers. Pennsylvania regulators and other state officials have been examining how those projects should connect to the grid, how their demand should be forecast and how the cost of necessary infrastructure should be assigned.
The commission is considering a model tariff for very large customers, including facilities using at least 50 megawatts. A tariff can establish common rules for service, financial commitments and infrastructure costs while utilities evaluate individual projects.
The study is one part of the commission’s broader review and does not itself impose new requirements. Further regulatory action would occur through the PUC’s public process. The central question is how Pennsylvania can accommodate major new electric loads without shifting unreasonable costs or reliability risks to existing customers.
