To properly explain GeoExchange®, we must begin with the sun. On a sunny day, when the great burning star stands high in the noon sky, its rays come barreling down upon the Earth, thus bringing heat. However, the following day may see the clouds reign in the sky, blocking the sun, its rays, and its heat. The next day may bring the sun out from behind the clouds or may hide it again. Who knows?

The point is that the sun’s ability to heat the earth is not constant. It is dependent on other types of weather. If the clouds, the rain, or the wind show up on the scene, the sun’s wonderful heat-giving capacity is ruined. Or is it?
The sun radiates an abundant amount of energy to the Earth everyday (even when it is cold outside). Like a giant storage medium, the Earth and its groundwater absorb about half of this precious solar energy. So, even though the weather may be cold or rainy or foggy, the Earth still gathers and stores the sun’s energy.

Because it does this, the Earth remains at a constant temperature range (from about 45 degrees F to 70 degrees F in North America). This interesting characteristic has already been recognized and utilized by even the smallest of creatures. The gopher burrows underground to make his home utilizing the Earth’s stable temperature range all year. In the summer, the ground is cooler than the outside air, and in the winter, the ground is warmer than the outside air. The gopher uses this fact to stay comfortable no matter what the weather condition.

Humans can, too, utilize this virtually limitless source of energy to heat and cool our homes, businesses, and schools. This is why GeoExchange® was created.