Blackout risk rises as heat wave stresses largest US electric grids
The risk of power outages is expected to escalate across a broad swath of the United States on Wednesday as intense heat will test the capacity of electricity supplies serving millions of homes and businesses from the Midwest through the Mid-Atlantic.
Meanwhile, the Midcontinent Independent System Operator (MISO), the regional grid operator for 15 US states in the Midwest and the South, predicted peak demand on Wednesday would approach record territory at about 121 gigawatts.
The US Department of Energy warned of the potential for heightened blackout risks in the PJM Interconnection, the largest US electric grid, which serves 67 million people in a territory stretching from Washington DC to Chicago.
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