PJM proposes curtailing data centers during grid emergencies, using generators as backup

PJM Interconnection proposes data centers switch to backup generators during grid emergencies. This plan aims to protect residential consumers from rising power costs and potential blackouts. Utilities would curtail data center demand before residential power is affected. PJM seeks to establish a registry for monitoring large electricity users. The rapid growth of data facilities creates friction with the aging power grid.

An anonymous reader quotes a report from Reuters: PJM Interconnection, the biggest U.S. grid operator, proposed on Thursday a new framework that would force data centers to use back-up generators when electricity supply on the grid approaches dangerously low levels. The grid operator's proposal dovetails with President Donald Trump's Ratepayer Protection Pledge, a non-binding initiative to protect residential customers from getting saddled with costs related to data center power consumption, PJM said. A new emergency procedure would notify utilities to reduce or transfer the electricity demand from data centers and other large power users ahead of any action that would shut off traditional consumers such as households. PJM said it does not, however, currently have the authority to curtail power to those sites and would require the cooperation of individual state governments. PJM manages the electricity for 67 million people in a territory that stretches from Washington, D.C. to Chicago. Its proposal highlights a growing tension between the rapid expansion of data centers and the ability of the nation's power grid to keep up. If PJM cannot close its supply gap, millions of residents and businesses face an increased risk of blackouts, and the cost of new generation could be passed on to other power consumers. At its recent capacity auction, PJM hit its $325-per-megawatt-day price cap but still came up about 6.8 GW short of its projected reliability needs. With rapidly expanding data centers adding pressure to the grid, PJM has also proposed creating a registry to track their locations and power consumption. Read more of this story at Slashdot.