Enertech Global LLC

An underground heat pump system at Kameha Grand hotel in Germany that uses six geothermal wells at 28 meters depth to provide heating and cooling for 80,000 square feet of building space, supplying all cooling and 70 percent of heating needs while saving approximately 1,700,000 kWh annually.

A type of geothermal heat pump system that uses groundwater or surface water as the heat exchange medium.

The process of capturing and converting gas produced from decomposing waste in landfills into usable energy, typically electricity.

Ontario

Europe

A landfill operation that utilizes a patented bioreactor technology to convert landfill gas produced from decomposing trash into energy, which is then sold to the electricity grid.

A residential heating system that extracts thermal energy from underground through refrigerated pipes and circulates it through a heat pump unit to provide home heating.

An alternative name for geothermal heat pumps, highlighting their reliance on ground temperature.