PROPERTY, PLANT, AND EQUIPMENT - PLANT TO BE RETIRED (Details) $ in Millions |
Jun. 30, 2024
USD ($)
|
May 31, 2024
MW
|
|---|---|---|
| WE | OCPP | ||
| Property, plant, and equipment | ||
| Net book value of plant to be retired | $ 675.8 | |
| WE | West Riverside Energy Center | ||
| Property, plant, and equipment | ||
| Jointly Owned Utility Plant, Proportionate Ownership Share of Capacity | MW | 200 | |
| WPS | Columbia Energy Center | ||
| Property, plant, and equipment | ||
| Net book value of plant to be retired | $ 252.1 |