Deep underground, a Missouri school's geothermal plant is attracting national attention | KCUR
When an old chiller stopped working in 2016, the Parkway School district Decided to install a geothermal system that uses the Earth’s temperature to heat and cool the school. It also recently added solar panels to the building. Altogether, the district says Parkway South is saving more than $100,000 a year in energy costs.