He said the last general rate increase RMP implemented was in 2020. Since then, he said, the cost of fuel for their power plants has gone up. Rates for wholesale power that RMP purchases have also risen, Eskelsen explained.

"That jump is responsible for about half of our rate increase request," he said. "The other major drivers are capital investments, things that we're building for customers that we've either completed or in the process of building this year."