Multiply this number by 1 000 to get the number of watts you need your solar panels to produce.
How much does 4000 watts of solar panels cost.
Kilowatts shouldn t be confused with kilowatt hours which is the metric to show you how much electricity your system produces.
You ll pay anywhere from 0 70 to 1 50 per watt to purchase a solar panel.
However solarreviews handles more than 1 000 quote requests per day and the current average price we see on our marketplace is 2 60 per watt.
Residential solar panels cost 2 53 to 3 15 per watt with most homeowners spending 2 70 per watt on average before any tax credits or incentives.
As of july 2020 the average cost of solar in the u s.
Solar panel cost data california 2020 updated.
The sunpower x series panels are 345 watts each.
Commercial solar costs 1 83 per watt on average.
That means that the total cost for a 4 000 watt 4kw solar system would be 8 614 after the 26 federal itc discount not factoring in any additional state rebates or incentives.
Solar systems have ratings based on the electricity produced annually in average conditions.
Is 2 91 per watt 11 640 for a 4 kilowatt solar system.
For a installation of 4000 watt peak an inverter between 3600wp to 4400wp is recommended.
The capacity of the inverter is ideally between 90 and 110 of the watt peak of the solar panel installation.
With labor and other factors solar panel installation costs a total of 2 50 to 3 50 per watt.
As of sep 2020 the average cost of solar panels in california is 2 68 per watt making a typical 6000 watt 6 kw solar system 11 877 after claiming the 26 federal solar tax credit now available.
There are three types common in the residential market.
How many watts can your solar panels produce.
In this case 4 000 watts.
Three dollars per watt 3 w means that for a 5 kilowatt system a common solar system size the gross system cost will be 15 000.
For example perhaps your home uses 20 kwh per day.
Preferably less than the installed capacity of the installation.
20 kwh divided by 5 peak sunlight hours is 4 kwh.
The most recent official data from the doe funded lawrence berkeley labs published in september 2019 found that the median cost of residential solar panels is 3 70 watt.
Each one has its own pros and cons from price to efficiency.