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Ryland42 t1_j6piiuy wrote

I have an 8kw system with backup installed. ROI is around 6 years. I used SolPower out of Charlestown. My electric bill has been zero since September and I have enough credit built up that it should stay at zero until the nicer weather is back.

Make sure your roof is less than ~12 years old or have it reshingled.

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