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Geothermal – It Ain't Sexy But It's Smart

Wind turbines and solar photovoltaic have become the iconic symbols of clean energy and environmental consciousness. But what about the other less ‘sexy’ forms of clean energy? Well, of course using less energy is the cleanest form to use, and it is usually the most cost-effective. But for people who want to increase the uptake of energy from clean sources, it may be more difficult. Unfortunately, not everyone has a strong enough wind or solar resource to make those investments cost-effective. Many folks living in urban settings would find it virtually impossible to implement either of those technologies. However, geothermal can provide or assist with heating and cooling needs for urban and rural alike. Geothermal exchange can be scaled for a single family home on up to entire city blocks, or more.

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Especially in the North American west, the geothermal resource is quite accessible. Now there are essentially two kinds of (residential) geothermal and I will not go too far into the details other than to say that one kind only needs to dig down 6-12 feet to tap the earth’s stored temperature. The other kind may take hundreds of feet of drilling but taps into a much hotter source. (There are also utility-scale geothermal facilities that are being developed in places where the source cannot be ignored, because hot waters bubble all the way up to the surface. Iceland, for example, gets 26% of its energy from geothermal and they get their remaining energy from hydro).


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is the founder of ecopolitology and the executive editor at LiveOAK Media, a media network about the politics of energy and the environment, green business, cleantech, and green living. When not reading, writing, thinking or talking about environmental politics with anyone who will listen, Tim spends his time skiing in Colorado's high country, hiking with his dog, and getting dirty in his vegetable garden.


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