@landatthebottom
OH!啥物攏不驚 OH!向前走
calendar_today11-05-2009 22:27:20
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2 weeks ago
The best payback period for a perfectly positioned south facing solar PV rooftop installation is ~12 yrs, often it is more like 18 yrs. BUTHere the claim is an annual saving of £41k at a cost of £173k. That is a payback of just over 4 yrs.Hrrrrrmmmm.......