Ball State’s system, which will involve boring some 4,000 geothermal wells, is expected to cost around $65-million and save $2-million in energy costs per year.

GEOTHERMAL PARTNERSHIP: An Enertech two-stage water-to-water heat pump, available in capacities of between 3 tons and 5 tons. A partnership between Enertech Global and Dandelion Energy plans to ...