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PJM claims that emergency electricity conservation during the US heatwave kept power demand below record levels

PJM, the operator of America's largest power grid, said on Monday that the emergency conservation measures taken last week 'likely prevented electricity demand from exceeding a record set in 2006 as scorching temperatures gripped the eastern U.S. PJM is unable to meet the soaring demand caused primarily by energy-hungry new data centers. The soaring demand for electricity is primarily due to the expansion of energy-hungry data centers. This has led to fears about reliability during extreme weather conditions and increased prices in capacity markets that are designed ensure there's enough power available during peak demand times.

According to preliminary data, PJM's peak instantlyaneous load on July 2 was 162,700 megawatts between 5 p.m. - 6 p.m. The total was still not far from the 2006 record of 165.600 MW. If PJM had not taken ?emergency electricity-reduction actions, like activating a so-called "demand response" program that pays participating users ?to lower their usage, the ?peak load would have been even higher, and would likely have surpassed the all-time PJM record, the operator said. PJM serves approximately 67 million Americans. Mid Atlantic and Midwest had warned of a possible demand that could surpass or challenge its all-time record for summer peak power, 165.6 gigawatts set in 2006. Weather forecasters called it a "heat-dome", but a hot and dry high pressure wave pushed temperatures dangerously high across eastern?U.S. Over the Independence Day Weekend. The heatwave caused homes and businesses to increase their air conditioning, increasing electricity consumption.

The preliminary data shows that demand was 154,976MW between the hours of 5 pm and 6 pm on July 3, 145.098MW between 4pm and 5pm on July 4, 134,332MW between 6pm and 5pm on July 5, and a total of 134,332MW between 6pm and 5pm on July 5.

The operator said that the load peaked Thursday and then dropped on subsequent days. They cited slightly milder temperatures and lower electricity consumption on weekends and holidays because businesses and other institutions are closed. (Reporting by Anjana Anil in Bengaluru; editing by Laila Kearney, Liz Hampton and David Gregorio)

(source: Reuters)