Construction recently began at Pioneer Generation Station Phase IV, a 600 MW expansion of Basin Electric Power Cooperative’s existing natural gas-fueled generation facility northwest of Williston, North Dakota.

The project will be Basin Electric’s largest single-site generation project since the 1980s. It will include two Siemens STG6-5000F simple-cycle combustion turbines and six Wärtsilä W18V50SG reciprocating engines.

Basin Electric said preliminary estimates place the budget at approximately $780 million, which includes both generation and transmission assets. The co-op said load forecasts have showed the need for more electricity by 2025 to serve the Bakken region’s rapidly growing demand.

Burns & McDonnell is the EPC for the project.

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