April 11th, 2009 
Tushar Mathur Traditional energy sources are on their way out. Fossil fuel costs are shooting up because we are running low on them, so we need to prepare for the future. We need to change the way we think about how we get our energy and how much we are using to change our lifestyles into sustainable lifestyles.
Many people have already begun to think this way. Problems that we have previously had with renewable energy have been solved and new engineering breakthroughs have allowed us to take the next steps toward a completely sustainable future.
With good blueprints, even homeowners inexperienced in engineering or construction can create their own renewable energy sources, such as wind power generators.
Homebuilt wind turbines can make as much power to reduce the average household’s power bill by 60-70%. The right advice can show you how many people make their wind power generators for as little as $200 US.
They can be built with basic tools and parts from a local hardware store. You can estimate the amount of power a generator creates using the following formula:
Power(Watts) = (Wind Speed)^3 * (Blade Diameter)^2 * 0.00478
The speed of the wind is cubed, so it makes the most difference in your power output. For example, if you have a good average wind speed of 10mph and an 8 foot blade diameter, then:
W = (10*10*10) * (8*8) * 0.00478 = 305 watts/hour – x 24 hours and you can calculate 7.3 kWh generated per day by a wind power generator.
If you have an average home, you probably use about 12-20 kWh of power every day. Even if you don’t have great wind speed in your area, an initial investment of about $200 to build a wind turbine is small compared to the savings you will get in free electricity for your house. Wind power generators are very good investments, indeed.
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