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Sewer grateCities and companies around the world tap into geothermal energy -- the thermal energy below the Earth's surface -- but there's another type of man-made energy coursing through sewer pipes beneath cities and towns: sewage. The town of Brainerd, Minnesota plans to develop a unique alternative energy system that will tap into the thermal energy in sewer pipes to heat and cool buildings.1
Steamy SewerCities and companies around the world tap into geothermal energy -- the thermal energy below the Earth's surface -- but there's another type of man-made energy coursing through sewer pipes beneath cities and towns: sewage. The town of Brainerd, Minnesota plans to develop a unique alternative energy system that will tap into the thermal energy in sewer pipes to heat and cool buildings.2
