April 6th, 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 also be built with materials from a local hardware store and basic tools. An easy way to estimate how much power your wind generator can create:
Power(Watts) = (Wind Speed)^3 * (Blade Diameter)^2 * 0.00478
The speed of the wind makes the most difference, because it’s value is to the power of 3 in the formula. An example calculation for a wind power generator using a good wind speed (10mph) and blade diameter (8ft):
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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