Coinciding with higher natural gas prices, the share of U.S. electricity generation powered by gas is set to decline this summer compared to last, the Energy Information Administration (EIA) said in research published this week.

In its Summer Electricity Outlook, released as a supplement to the May Short-Term Energy Outlook, EIA said it expects natural gas-fired generation to total 420 billion kWh for June, July and August.

That would represent 37% of total U.S. electricity generated this summer. Last summer, natural gas-fired generation accounted for 42% of total domestic electricity generation, according to the agency.

The forecast for reduced natural gas-fired electricity coincides with an expectation for coal-fired electricity to increase.

“Forecast U.S. coal...