Evaluating feasibility of solar panels in site rated at 895 (or 65% TSRF)
Just got a quote from solar panel install company and thinking I may skip solar and redirect funds to doing more insulation work on the house. But before I do that, I wanted to run some thoughts by here.
1. I am calculating that per kW I will be at $4.25 installed (I am in Boston area). Considering article I just saw today on GBA pegging average installed price $0.80 less per kW I am discouraged.
2. Installers felt they could only guarantee output based on 65% TSR. Only roof that is most usable can accomodate max of 27X Suniva 275W panels with output that will cover only 47% of my electrical usage.
3. SRECs in Massachusetts are getting a bad rep. After large tumble in price in May of 2012, we just don’t know where they will be in price, even though utilities are mandated to buy them. So I feel that I can’t include SRECs in my ROI, because I may be able to predict what I would see this year, but next year it is a crapshoot.
4. Winter per kWh rate is now about 24 cents, but consensus I am discovering is that in June it will fall to around 18 cents. So when I am looking at the pay off model, that pegs price of utility provided electricity at 23 cents, ROI calcs just lose credibility with me.
With all those facts in hand, I feel instead I should be redirecting the budget in energy retrofit work.
Am I not seeing something I should be?
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