How much does a 20,000 Watt (20 kW) solar system cost in 2017?

20 kW solar system cost

If you’re shopping for a solar energy system, one of your first questions is probably, “how much will it cost?” Prices depend on the size of your system, the type of equipment you choose, and the state that you live in, but reviewing prices for a 20 kilowatt (kW) system is a great place to start for many smaller homes. Learn more about how much a 20 kW solar system costs, how much electricity a 20 kW system will produce, and the smartest way to shop for solar.

How much does a 20 kW solar system cost in 2017?

As of January 2017, the average cost of solar in the U.S. is $3.26 per watt ($65,200 for a 20 kW system). That means that the total cost for a 20 kW solar system would be $45,640 after the 30 percent Federal ITC discount (not factoring in any additional state rebates or incentives).

20 kW solar panel system cost: What are solar shoppers paying in your state?

We looked at data from the EnergySage Solar Marketplace, the leading comparison-shopping platform for homeowners who are considering home solar panel systems, to find out just how much solar shoppers are paying for 20 kW solar energy systems in different states across the U.S.


20kw solar system


The prices listed below have already had the 30 percent federal tax credit for solar deducted. Depending on where you live, you might have additional state or local solar incentives and rebates that reduce the price even more. You may even be able to earn extra income by selling your system’s solar renewable energy certificates (SRECs).

Even if there are no other incentives where you live, comparing multiple offers from solar companies is important to ensure that you’re finding the best deal. Homeowners who register their property on EnergySage save up to 20 percent just by shopping around for the right option for their home.

20 kW solar cost map 2017

How much does a 20,000W (20 kW) solar system cost in my state?

State 20 kW solar system price range (2017)
Arizona $36,359 – $47,561
California $41,237 – $53,791
Colorado $38,875 – $52,712
Florida $37,017 – $48,811
Massachusetts $42,795 – $55,165
Maryland $39,001 – $49,437
New Jersey $39,305 – $50,978
 New York $39,164 – $57,425
Texas $35,982 – $47,908
Washington $45,096 – $59,646

Remember, the cost of solar depends on a lot of factors, so these numbers are just meant to be a starting point. In most cases, you should be able to find a 20 kW solar system in this price range – if you receive offers from solar companies that are much higher or lower, be sure to ask follow up questions.

How much electricity will a 20 kW solar system produce?

The amount of electricity your solar panels produce depends on many factors, including the direction and angle of your roof. The most important one is how sunny it is where you live – for example, a 20 kW system in Las Vegas makes about 30 percent more electricity in a year than one in Philadelphia. That being said, you don’t have to live in the Southwest for solar to make sense for you. The cost of electricity where you live is the biggest determinant of your solar savings.

The table below shows average estimated electricity production numbers for 20 kW solar energy systems in cities across the U.S. By comparison, the average household in the U.S. uses 911 kilowatt-hours (kWh) a month, which equals 10,932 kWh per year. We estimated these numbers using PV Watts, a tool developed by the National Renewable Energy Laboratory.

Solar electricity output of a 20 kW solar panel system in top U.S. cities

City Average daily kWh Average monthly kWh Average annual kWh
Austin, TX 81.2 2,469 29,632
Boston, MA 72.4 2,202 26,420
Cleveland, OH 66.6 2,024 24,284
Denver, CO 83.8 2,546 30,557
Hartford, CT 68.2 2,075 24,895
Las Vegas, NV 96.4 2,932 35,179
Los Angeles, CA 86.8 2,638 31,652
Miami, FL 80.2 2,437 29,247
New York City 69.9 2,124 25,485
Philadelphia, PA 71.4 2,171 26,048
Phoenix, AZ 94.8 2,881 34,568
Seattle, WA 59.7 1,816 21,786

Get the best deal on a 20 kW solar system

Now that you know what to expect, you can ensure that you get the best deal on a 20 kW solar energy system by registering your property on the EnergySage Solar Marketplace. Use the comprehensive, easy-to-understand comparison tables to evaluate all of your equipment options, financing offers, and solar company reviews. When you compare multiple solar quotes, you can feel confident that you’re making a smart investment in your home.


20kw solar system


3 thoughts on “How much does a 20,000 Watt (20 kW) solar system cost in 2017?

  1. mansha brothers

    I need to install solar system in my home and office. Thank you so much for sharing this article. It would be really helpful for me. Thanks

  2. John

    “As of January 2017, the average cost of solar in the U.S. is $3.26 per”

    Ummm… What?! That’s not the price per watt. Where did you get that information? There’s absolutely no WAY that is right. Last I checked, it was $0.50 per watt at the best rate and at most $1.00. There’s no way it went up that much…$3.00 per watt is the price you pay for those smaller 100 watt systems. But not for 20 freaking kilowatts worth of solar panels…


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