**Updated calculations to reflect a true economic comparison to traditional shingles roof.**
Live data tracker!!!! https://drive.google.com/open?id=1CnpXjBb4D6-uTYXwgJthA1RozQWxWS018_G3BG...
Below is updated numbers. This is still not the final design:
Solar Roof Cost for my house:
Est. Annual Production: 8258 kWh
20 year loan @ 6.99%:
NYS Tax Credit: $5,000
Federal Tax Credit: $6,446
Shingles Roof Estimates: ~$16,000
Life span of Shingles Roof: ~25 years.
Life span of the Solar Roof: 60 years. I think its more realistic to use 50 years.
Shingles Roof needs 2 replacements by the end of Solar Roof life, which translates to ~$32,000.
Solar Roof recovers $11,446 from tax credits, and generates about $900/yr in electricity.
25 year warranty guarantees 87.5% of solar's nominal rated power generation due to degradation at the end of the warranty.
Sunlight Region Info: Albany, NY
Potential Annual Energy Generation: 8,258kWh
Potential Annual Value of Energy: $929.02
Maximum Utility Payout for Energy (1/3): $309.67
50 year cost:
Shingles Roof: -$32,000.
Electricity Value: 900x50x0.875= +$39,375
Home Appreciation Value: ~5% (traditional solar panels) = ~+$10,000
Tax Credits: +$11,446
Solar Roof: -$39,156.40
Add them all up and you get: +$21,664.60
After 50 years you will be net positive 21 thousand dollars instead of being negative 32 thousand for a traditional roof.
Time to break even: 10,000 + 11,446 - 39,156 = -17,710
-17,710 + (900*X) = 0
X = 19.6777
Break even period is 20 years based on electricity rates of $0.1125/kWh.