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Posted by tg on November 8, 2009, 7:33 pm
On Nov 8, 6:25=A0pm, "Cwatters"
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> While I agree with you to a point you also have to bear in mind =A0produc=
> lifetime and depreciation. Wall insulation generally has a long life and =
can
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> add full value to your house. It doesn't generally depreciate so you
> probably will recover your investment when you come to sell. However the
> situation regarding =A0wind turbines and PV isn't so clear. How much is a=
10
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> year old wind turbine worth? Will it have gained in value or depreciated?
Everything else aside, a 10 year old wind turbine should be worth
pretty much the same as a new one. This kind of device has a really
long useful lifetime. (50 years minimum?) As with any technology,
quality of construction matters, but you have to apply the same
standard to any other system for comparative reliability.
But what makes sense is the insulation and quality building
standards---the return is clear and there are no questions.
-tg
-tg
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> lifetime and depreciation. Wall insulation generally has a long life and =