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Home-conservation projects that yield 8% - 41% annually!       Category:
3
2 votes
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Today I’m going to discuss how safe returns in the neighborhood of 10% to 40% annually can be made through home conservation that leads to substantial yearly savings. In the process of making a savvy (and possibly tax-free) investment, you get the additional benefit of feeling good about lessening your impact on the environment. I like comparing the annual savings to the earnings that a traditional investment like a 12 month CD would make (currently paying a measly ~2%). [...]

How green-techs compete in US electric-power production       Category:
2.666665
6 votes
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Exactly how much electricity is consumed in the United States? And, what would it cost to swap 20% of electric generation with renewable sources? As difficult as these questions may seem, they can be broken down into more manageable parts. [...]

Your electic bill: Google & Microsoft are competing to help       Category:
3.75
4 votes
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Both Google and Microsoft are working with utility companies to provide you with electricity-usage data. How much is it costing you to finish watching that television sitcom? How much does it cost to do another load of laundry? Most of us have no idea. But, with these competing software programs and others, you will soon be able to answer such questions by monitoring your own electricity consumption. [...]


Matkas: an electricity-free method of cooling water       Category:
4.25
4 votes
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It's a hot sunny day. Your throat is parched. So what do you do? Reach for that bottle of cold water in your fridge? Consider for a moment that a typical refrigerator uses between 600 and 900 kilowatt hours per year (although an efficient one will use somewhat less depending on the size). Refrigerators and freezers typically make up about 17% of total residential electricity consumption in the United States [1] and the continual opening and closing of a fridge door doesn't help! "Matkas", to which I will shortly introduce you, can cool your drinking water by up to 14° C (~25° F ) lower than room temperature [2] without using any electricity! [...]


Living off the Grid       Category:
5
2 votes
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Gentleman discusses the benefits of living in a home that is off the electric grid. [...]


Geothermal Heating for the Home       Category:
3.333335
3 votes
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A very brief overview of geothermal heating and cooling concept. [...]


Trombe Wall: A Humble Aproach       Category:
3.05263
19 votes
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A trombe wall is a simple concept and one that I have personally experimented with; it is also a project that can have a very quick payback, a rare thing with alternative-energy investments. A quick search on Google Images will reveal that there are numerous and diverse designs approaches for trombe walls. [...]


Community Living Project       Category:
5
2 votes
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This energy-efficient, multi-family home uses solar energy and other technologies to leave a minimal impact on the environment. This is a video about a community of homeowners that joined forces to realize their dream of an energy-efficient home. [...]


Smart Appliances in the News       Category:
0
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Smart Meters in the News       Category:
0
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