Thinking Green…Vertical Axis Wind Turbine…

Green energy, free power, it’s all concepts we dream of, and some of us may have thought about it deeply, esp. with all oil prices rising sky-high (it used to reach over 100$), now it’s relatively low, but eventually it will rise again…

Also not to mention the amount of carbon-dioxide produced from burning the oil…

As if that isn’t enough, the efficiency of oil-based generators is very very low, as low as 30%, which basically means, if an amount of gasoline burns producing 100 watts worth of power, at the generator output you only get 30 watts of electric power, the remaining (70 watts) are simple wasted…

So if you pay 100$ for gasoline in a generator, you’re wasting 70$, and only making use of 30$ !!!!

So, green energy to rescue…

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