Story, photos reprinted from Minnkota

The central energy plant is about one-tenth of the total size of a much-anticipated, new $494 million medical center complex, which opened July 2017.

Yet nothing is more important to the operation of the hospital than the 90,000-plus-square-foot power plant. Everything starts in this building. All the electrical, cooling and heating, water treatment, med gas and med air and water softening is shipped through a 250-foot underground tunnel over to the hospital next door.