Most solar panels last for 50 years have a 25 year warranty and start generating a return on investment after 8 years.
Cost to have solar panels installed.
No two solar power systems are the same.
In california where the average system required is 4 23 kw solarreviews research data shows that the average solar panel installation cost as of jan 2020 is 2 78 per watt meaning the 4 23 kw system would be 11 753 before the solar tax credit and 8 701 after the federal tax credit.
They are custom based on the home roof type shading and utility.
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The average solar panel payback period is 7 to 12 years and solar energy saves 600 to 2 000 per year on electricity costs.
Solar panel costs for an average sized installation in the u s.