Power generation capacity in the US and Canada rose by a net 94 MW in June as 874 MW of new operating capacity entered service and 780 MW of capacity was permanently retired, leaving operating capacity at 1,361 GW, according to S&P Global Market Intelligence data.

A total of 14 generation units were completed, while six units were retired. Wind accounted for 55.1%, or 481 MW, of completed capacity. Within the retired capacity, coal made up 93.3%, or 728 MW.

One new 150-MW solar facility, to be built at the site of an existing gas-fired power plant, was proposed during the month.

Completed

The 248-MW Thunder Wolf Solar Project in Pueblo County, Colo., was the largest single capacity addition to begin service in June. The one-unit facility is owned by NextEra Energy Inc. subsidiary NextEra Energy Resources LLC. The 100-MW Thunder Wolf Battery Storage Project, at the same site, also began operating in June. The output of both is secured under contract with Xcel Energy Inc. utility subsidiary Public Service Co. of Colorado.

The 238-MW Chevelon Butte Wind Farm, with 57 turbines in Coconino County, Ariz., was the next-largest capacity addition in June. AES Corp. owns the plant and expects a second phase to be completed in 2024, helping the company advance its goal of delivering 100% clean energy to customers by 2050.

Announced

A 150-MW solar project to be built at the site of the gas-fired Plant X facility in Lamb County, Texas, was the only announced project in June. The project is owned by Xcel Energy utility subsidiary Southwestern Public Service Co. It has an estimated cost of $224.6 million and was identified through a recent request for proposal process. The utility said it plans to submit the project for approval to regulatory bodies in Texas later this summer, with decisions expected in 2024 and the new solar plant scheduled to come online in 2027. The Plant X facility dates from the early 1950s. One unit was retired at the end of 2022 and two others are set to be retired this year, leaving one remaining unit still in operation.

CMS Energy Corp. subsidiary Consumers Energy Co. shut down two units at its coal-fired Dan E. Karn plant in Bay County, Mich., with a combined capacity of 489 MW, which represented the largest retirement for the month.

The closing of one unit at Alliant Energy Corp. subsidiary Interstate Power & Light Co.'s coal-fired Lansing plant in Allamakee County, Iowa, with a capacity of 238 MW, was the second-largest retirement in June.

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