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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 4 kilowatt (kW) system is a great place to start for many smaller homes. Learn more about how much a 4 kW solar system costs, how much electricity a 4 kW system will produce, and the smartest way to shop for solar.

How much does a 4kW solar system cost in 2019?

As of July 2019, the average cost of solar in the U.S. is $2.98 per watt ($11,920 for a 4 kilowatt solar system). That means that the total cost for a 4,000 watt (4kW) solar system would be $8,344 after the 30% Federal ITC discount (not factoring in any additional state rebates or incentives).

4kw solar system cost

4 kW solar panel system cost: What are solar shoppers paying in your state in 2019?

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 4 kW solar energy systems in different states across the U.S.

The prices listed below have not 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.

4kw solar panel system cost by state

How much does a 4,000W (4 kW) solar system cost in my state?

State 4 kW solar system price range
Arizona $10,920 – $13,560
California $10,520 – $13,160
Colorado $11,400 – $13,800
Florida $8,800 – $12,240
Massachusetts $11,360 – $13,920
Maryland $9,720 – $12,440
New Jersey $10,200 – $13,560
New York $10,480 – $15,200
Texas $10,280 – $12,520
Washington $9,960 – $12,600

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 4 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 4 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 4 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 4 kW solar energy systems in cities across the U.S. By comparison, the average household in the U.S. uses 867 kilowatt-hours (kWh) a month, which equals 10,400 kWh per year. We estimated these numbers using PV Watts, a tool developed by the National Renewable Energy Laboratory.

Solar electricity output of a 4 kW solar panel system in top U.S. cities

City Average daily kWh Average monthly kWh Average annual kWh
Austin, TX 16.2 494 5,926
Boston, MA 14.5 440 5,284
Cleveland, OH 13.3 405 4,857
Denver, CO 16.8 509 6,111
Hartford, CT 13.6 415 4,979
Las Vegas, NV 19.3 586 7,036
Los Angeles, CA 17.4 528 6,330
Miami, FL 16.0 487 5,849
New York City 14.0 425 5,097
Philadelphia, PA 14.3 434 5,210
Phoenix, AZ 19.0 576 6,914
Seattle, WA 11.9 363 4,357

Get the best deal on a 4 kW solar panel system

Now that you know what to expect, you can ensure that you get the best deal on a 4 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.

4kw solar system cost