Geothermal electricity is produced using heat from the Earth's core, which is hotter than the sun’s surface! | Green Mountain Energy Company

How does home geothermal energy work? The temperature of the earth 10 feet below surface level is a constant 55 degrees Fahrenheit year round. When the air outside your home is below freezing, just 10 feet below the snow-covered ground it’s still 55 degrees. Or when summer brings 96-degree weather, the earth beneath your house keeps steady at 55 degrees. You have probably experienced this phenomenon at home without even realizing it. When you go into your basement on a hot day, it’s nice and coo