30 Jun '14, 6pm

The energy paypack for a 2-megawatt wind turbine that lasts over 20 years is... 5-8 months

The energy paypack for a 2-megawatt wind turbine that lasts over 20 years is... 5-8 months

Talk about a great return on investment! Some people who are against renewable energy - often when you follow the money you find that they are being financed by fossil fuel interests - spread all kinds of misinformation. One of their main arguments is that it takes so much energy to, for example, build wind turbines that the energy that is produced takes a long time to offset the energy used for production and installation, making them a worse deal than they seem, and thus not as beneficial to the environment as pro-renewable people claim.It might sound like a good 'gotcha', but the facts don't back it up. Wikipedia /CC BY-SA 2.0 The first thing to remember is that there's no such thing as a free lunch; building anything requires an upfront investment. Coal and natural gas power plants take a lot of energy to build too, and on top of that initial energy deficit, it also ta...

Full article: http://www.treehugger.com/renewable-energy/energy-paypack...

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