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30 Oct 2009 @ 10:30 AM
What is the payback time for a giant wind turbine?
Jacob S asked:
Given the investment required in building a wind turbine, how long does it take for one to recoup the investment given the value of the energy it produces?
Most of them never payback without a government subsidy and are really installed to make a pro-green statement. The few installed in Boston (with great fanfare) have to be shut down and then reset every time that the winds go above 20 mph. Ones that are in some western locations generate well but there are not enough high voltage transmission lines to get most of the energy sold into the grid and they end up shutting them off for much of the day.
These days it is probably more than ten years because the whole country is not converted into wind-farms. However when our energy costs more than at present, the investment in the turbines will be covered in less time and we can expect our migrant birds to be sacrificed to the greed of man for cheep electricity.
1:36 pm - October 30th, 2009
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Most of them never payback without a government subsidy and are really installed to make a pro-green statement. The few installed in Boston (with great fanfare) have to be shut down and then reset every time that the winds go above 20 mph. Ones that are in some western locations generate well but there are not enough high voltage transmission lines to get most of the energy sold into the grid and they end up shutting them off for much of the day.
2:01 pm - October 30th, 2009
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These days it is probably more than ten years because the whole country is not converted into wind-farms. However when our energy costs more than at present, the investment in the turbines will be covered in less time and we can expect our migrant birds to be sacrificed to the greed of man for cheep electricity.