Can PA's power grid handle data center development? The PUC worries reliability at risk

The Pennsylvania Public Utility Commission (PUC) is warning state residents that rapid data center development could compromise energy reliability across the commonwealth in the coming years. The PUC released an independent analysis by Synapse Energy Economics, which concluded that the regional power grid, operated by PJM, would fail to meet its own reliability standards from 2027 through 2030. PUC Chairman Steve DeFrank emphasized that while data centers offer opportunities, this growth cannot come at the expense of reliable and affordable electric service for existing families and businesses, stating that the electricity demand and supply are moving out of balance.

The analysis projects that reliability risk by 2030 could be nearly six times PJM’s standard, with new data center demand across PJM between 2029 and 2030 potentially exceeding Pennsylvania's entire current annual electricity demand. The PUC has urged PJM to take additional action to address the anticipated shortfall.

PJM, in a statement by senior manager of external communications Jeff Shields, agreed that electricity demand, primarily from data centers, is outpacing the ability to build new power sources, risking reliability and increasing costs over the next five years. PJM highlighted its own actions to increase supply and manage demand, including a "Ratepayer Protection Pledge" by data center developers and a filed Interim Resource Adequacy Service (IRAS) proposal. The IRAS proposal aims to provide a path for data centers and other large load customers to connect to the grid without sacrificing reliable service for the rest of the system.

PJM also noted Pennsylvania's efforts to establish "common-sense" rules for data center development and remove barriers for new energy resources, alongside setting price caps and floors on capacity markets to protect consumers and suppliers.