Colorado Geothermal Drilling installed the geothermal system at the new Aurora Public Schools Harmony Ridge P-8 in Aurora, CO. 100 geothermal loops and 83 ground source heat pumps are providing fossil fuel free energy efficient heating and cooling. It’s safe because there is no onsite combustionof fossil fuels, efficient because for every 1 unit of energy consumed, geothermal delivers 4 or more units of heating and cooling.