Power prices in largest US grid rise the most in recent months, Hitachi Energy data shows
By Laila Kearney
NEW YORK, Nov 12 (Reuters) - The largest US electric grid, which covers the world's biggest data center hub, had the biggest increase in power prices of any grid in the country in a recent six-month period, according to industry data released by Hitachi Energy on Thursday.
Average day-ahead wholesale electricity prices in PJM Interconnection, which spans 13 Mid-Atlantic and Midwest US states, increased by about 24% to $52 per megawatt-hour in the period from April to September this year compared to the same period last year
Hitachi attributed the increase to rising demand from data centers and other large energy users, hotter weather, and higher costs of fuel like natural gas without enough new power supply added
New England wholesale day-ahead prices logged the second-biggest jump, rising about 11% to $50 per MWh, Hitachi said
New York and Midwest power prices also rose compared to the year before
In Texas and California, wholesale electricity prices fell on average in the April-to-September period of 2026 from the same period a year before
Peak prices, which are the maximum day-ahead prices, were also highest in PJM at $1,700 per MWh, followed by the Midwestern grid MISO at about $1,100 per MWh