6kw solar energy system

How much does a 6,000 watt (6kW) solar system cost?

If you’ve been looking into going solar, you’ve probably at some point seen quotes for a 6kW solar system. 6kW solar systems are one of the most popular system sizes in the US because in most places they will produce about the right amount of electricity to meet an average household’s daily electrical needs.

Solar leases & PPAs have made going solar accessible for virtually anyone with a roof, but what if you’re thinking about purchasing a system? Since you’ll probably be spending your own money, you’ll want to be extra selective about the installer who does the job and the components that are used.

This article investigates these questions: 1) How much does a 6kW solar system cost, 2) how much electricity will a 6kW system produce, and 3) how do you know you’re getting the best deal?

How much does a 6kW solar system cost?

As of January 2022, the average cost of solar in the U.S. is $2.77 per watt ($16,620 for a 6-kilowatt system). That means that the total cost for a 6kW solar system would be $12,299 after the federal solar tax credit discount (not factoring in any additional state rebates or incentives).

6,000 watt solar system costs: what’s the going rate in your state?

EnergySage has access to pricing data provided by our network of pre-screened installation companies who participate in our Solar Marketplace. The table below represents a rough approximation of the range of prices on quotes in various states, before the federal Investment Tax Credit (ITC) is taken into account.

Keep in mind that you may qualify for additional rebates and incentives. Try our free Instant Estimate tool to get more precise numbers.

The main takeaway from the table below is this: If you see prices significantly higher than theseask questionsThere could be a good reason to pay more, but if that’s the case, you should know why and understand how the offer delivers better value.

How much does a 6 kW solar system cost in your state?

State6 kW solar system price range
Arizona$12,420 – $15,540
California$14,400 – $17,880
Colorado$16,920 – $20,640
Florida$12,840 – $16,440
Massachusetts$16,500 – $20,820
Maryland$15,060 – $19,980
New Jersey$14,400 – $19,080
New York$16,260 – $21,660
Texas$13,620 – $18,060
Washington$13,860 – $17,820

How much electricity will a 6kW solar system produce?

Solar system performance is dependent on a number of factors, including the quality of the parts used in the system and the angle and orientation of the panels themselves.

However, the primary determining factor is the amount of sunlight that your area receives: For example, all things being equal, a 6kW solar system in San Diego, California will produce about 20% more electricity annually than a system in the Northeast US.

Table 2 below shows average daily, monthly and annual solar energy production numbers for a 6kW solar system in various US cities. As you can see, systems located in sunnier cities produce more electricity than less sunny cities. These figures, and other back-of-envelope calculations may be helpful in figuring out how much money you save on your power bill.

Daily output of a 6 kW solar panel system in U.S. cities

CityAverage daily kWhAverage monthly kWhAverage annual kWh
Austin, TX24.47418,894
Boston, MA21.76617,931
Cleveland, OH20.06087,290
Denver, CO25.17659,175
Hartford, CT20.56237,472
Las Vegas, NV28.988010565
Los Angeles, CA26.07929,501
Miami, FL24.07328,778
New York City21.06377,649
Phoenix, AZ28.486510,379
Seattle, WA17.95456,542
Trenton, NJ21.46527,818

Three Tips for Solar Shoppers

1. Homeowners who get multiple quotes save 10% or more

As with any big ticket purchase, shopping for a solar panel installation takes a lot of research and consideration, including a thorough review of the companies in your area. A recent report by the U.S. Department of Energy’s National Renewable Energy Laboratory (NREL) recommended that consumers compare as many solar options as possible to avoid paying inflated prices offered by the large installers in the solar industry.

To find the smaller contractors that typically offer lower prices, you’ll need to use an installer network like EnergySage. You can receive free quotes from vetted installers local to you when you register your property on our Solar Marketplace – homeowners who get 3 or more quotes can expect to save $5,000 to $10,000 on their solar panel installation.

2. The biggest installers typically don’t offer the best price

The bigger isn’t always better mantra is one of the main reasons we strongly encourage homeowners to consider all of their solar options, not just the brands large enough to pay for the most advertising. A recent report by the U.S. government found that large installers are $2,000 to $5,000 more expensive than small solar companies. If you have offers from some of the big installers in solar, make sure you compare those bids with quotes from local installers to ensure you don’t overpay for solar.

3. Comparing all your equipment options is just as important

National-scale installers don’t just offer higher prices – they also tend to have fewer solar equipment options, which can have a significant impact on your system’s electricity production. By collecting a diverse array of solar bids, you can compare costs and savings based on the different equipment packages available to you.

There are multiple variables to consider when seeking out the best solar panels on the market. While certain panels will have higher efficiency ratings than others, investing in top-of-the-line solar equipment doesn’t always result in higher savings. The only way to find the “sweet spot” for your property is to evaluate quotes with varying equipment and financing offers.

For any homeowner in the early stage of shopping for solar that would just like a ballpark estimate for an installation, try our Solar Calculator that offers upfront cost and long-term savings estimates based on your location and roof type. For those looking to get quotes from local contractors today, check out our quote comparison platform.

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18 thoughts on “How much does a 6,000 watt (6kW) solar system cost?

  1. Bob Cleveland

    I would like to get 5kW on my roof, and into my grid tied house. I would prefer Panasonic panels because of the heat in Florida.
    Also, the church I belong to would like to get a quote from a Florida installer. I would like Panasonic for grid tied there as well. We will be putting in between 40-50 kW of pv power, either on the roof (not likely) or ground mount, or, car port style.
    Lets do the home project soon, and see what the satisfaction with the price and install materialize.
    If that goes well we can talk about the larger project then.

  2. DrMar23

    Electricity is too low in Texas to spend 15 to 20 for solar panels to pay for themselves. My calculation tells me my return on investment would be about 17 years. I won’t be investing until the price is 50% or more on a 6KW system that produces only 750 kw. I can use 750 kw in 10 days or less. For Solar to be affordable and useful we need lower prices with higher solar kw produced in a 24 period vs 750 kw for 15K. I will wait because I might not outlive the investment when my current plan is less expensive by shopping for lowest price Electricity in the great state of Texas that takes care of business but forgets that the citizens should come first. Thank you for article, I learned a few things and strengthened what I did know. Expect low e- prices because we have 100’s of years of cheap natural gas in America in the ground (mainly in the southwest Texas, NM, CO, OK, and a few others ).

  3. Aedgard de Boer

    Recently I see an Ad on the internet as follows: CA Approves no cost Solar. Then they show two meters, one with a dollar sign of $251/month and the next meter with $15/month.
    These ads are deceiving. Try to get that $15/month electrical bill. I challenge you.
    Submitted by:
    Aedgard de Boer

    1. Zertuche

      I live in Southern California and have a 6.6 kW system I paid for it out right and it is mine $18,000 after federal rebate. Last year I had a -$700 Credit on my annual bill which is then bought back at wholesale prices….. So what did I receive $56 in cash. My monthly line charges run on average $15 a month. The line charge is what they charge us for us to send them electricity and then to bring it back. For us in California with our very high prices per kilowatt as much as $.48 per kilowatt [ that is correct $.48 ] it is worth the investment. I have a second home in Texas but I would need a solar system twice as big and it’s not worth the cost. My current price per kilowatt is $.11 I cannot justify spending $36,000 in solar panels, my ROI would be 18 years.

      1. Haley

        Hi Zertuche,
        Which solar company did you use? I am still in the beginning of my search. I have a proposal of 6.4kW system for $30K before the rebate from Better Earth. It seems high. Do you have any suggestions as to which companies I should get quotes from?

        Thank you in advance for your advice.

  4. Robert Murto

    Avoid most counties in the State of Virginia. The tax assessor in Louisa Virginia must work on commission, my real estate was assessed at 30 thousand higher one month after my purchase.
    After one year it was assessed at 40 over my purchase price.
    Would I move to Virginia again.? HELL NO. THIS IS NOT A BUSINESS FRIENDLY COUNTY.
    PS Virginia is owned and operated by Dominion Power.

  5. Stephen L

    Susan is right. In Richmond, VA, the Solarize Richmond initiative offers a base 6kw system for $15,900, or $11,130 after the full 30% federal tax credit. In this area, that’s about a 10-year payoff time based on energy savings.

  6. susan Hoague

    I encourage homeowners to also look for a community-based solar energy group-buying program in their community. These group purchasing programs can lower prices considerable. For example, in Gloucester MA such program offers a base price of $20,100, or $14,070 after the 30% federal tax credit. This is a significant savings from your listed $16,590 ~ $23,226 range. There are many such local Solarize programs throughout MA, VT, Conn, OR, CA, WA, DC, NY, NC, etc.

  7. PayLess

    It’s true. Solar systems save much more as compared to other sources of electricity. In case of getting the best price deal online… price comparison website is the best tool, here you can compare your required brand system with other available products in the market. After spending some time in comparison you will be unable to find best price option and top quality products/brands online.


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