Geothermal Greenhouse – A Sustainable Way To Grow Year Round

A glass greenhouse in a garden

There are many ways to get a jump start on growing and to extend the season. Hoop houses, cold frames, water walls, and greenhouses are typical examples. The traditional greenhouse is usually heated using an outside source, but a more sustainable and energy efficient way is through geothermal greenhouse design. Using geothermal heat for greenhouse warming captures the energy stored in the soil and groundwater. The practice recycles solar energy and is a cost effective method of keeping plants warm. The energy used to heat a traditional greenhouse accounts for the third largest cost in such systems when using electricity. Some gardeners defray the expense by installing solar panels and harvesting natural energy. Another way to minimize cost is by using geothermal greenhouse heating. Commercial growers using this method estimate they save 80 percent of operating fuel costs. That is a significant savings and contributes to the conservation of resources. […]

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