A lot of people ultimately decide to go solar because the math works out over the long term. But to figure that out, you must first determine what your system should cost up front.
The answer to that question: It’s complicated, and it depends.
When Larry Gawel and his wife installed solar at their Lincoln, Nebraska, home in , the system cost about $18,000. The system has since provided for almost all their electrical needs, including heating and cooling. Recently their retirement planner asked for a summary of their utility bills and assumed that the figure they gave him was per month. “I told him no, that’s an entire year,” Gawel said.
At the other end of the range is the Central Florida home of Erik Erickson, Wirecutter’s director of platform engineering. To manage hurricane threats and routine power outages, Erik has specced out a slightly oversize solar array coupled to four backup batteries. Capable of powering the home if the grid goes down for a week or more, the system will come in at about $68,000.
The average price falls somewhere in between. The median price of a US residential solar installation was $4.20 per watt in (down from $14 in ), and such a system produced 7.2 kilowatts, according to a report from the Lawrence Berkeley National Laboratory (PDF). (That number skews low because California installs the most residential systems, but they’re relatively small; other states average above 8 kilowatts.) That works out to a total cost of about $30,240.
EnergySage, a “solar matchmaker” whose expertise we’ve highlighted before, has a detailed chart of state-by-state average costs that may give you a rough idea of what to expect for your home. Just be aware that the results shown there are limited to an average system size installed in that state, which may not match your own needs, and the figures are lower by about 25% than the numbers in the Lawrence Berkeley National Laboratory report. In part, this is because EnergySage factors in savings that you can get only if you use EnergySage to connect with contractors in your area.
The federal government will subsidize 30% of the cost of your solar project.
The Inflation Reduction Act of made several important changes to how federal solar tax credits work. For one, it extended the credit for years, until ; it also raised the rebate to 30% of the total cost of installation until , after which it tails off to 26% and 22% the next two years.
There’s no cap to the cost, either—whether you pay $10,000 or $100,000 for your solar project, you get the full value of the credit.
In a sense, that may be all that you as a homeowner need to know. You have a long window in which to decide whether to go solar, where you can be confident of writing off 30% of the total cost. Your up-front costs will be reduced by almost a third, and you’ll recoup your investment that much faster.
Significantly, you can spread the credit across as many as the next five years of tax returns. This option is designed to maximize the credit’s benefits, since not every household will owe 30% of their project cost in taxes in the year of installation.
The Inflation Reduction Act also improves certainty and long-term planning in the solar industry itself, said Joe Lipari, vice president of projects at Brooklyn SolarWorks. “We always joke and call it the ‘solar coaster’ because so much of it is really influenced by political whims,” he said. “What the IRA did was provide certainty that this is an incentive that’s going to be here to stay… We’re so accustomed to, ‘It’s going to expire next year. Sign up now. Get it while you can. It’s never going to get better.’ It changes the mindset.”
And that should help smaller, customer-oriented local solar contractors—such as Brooklyn SolarWorks—stick around.
We strongly recommend working with such a contractor, versus a large national firm whose business model, as detailed by Alana Semuels in Time, prioritizes sales over service. (In Semuels’s words, “National solar companies essentially became finance companies that happened to sell solar.”) Tellingly, the first of the “40 Questions to Ask an Installer” suggested by the nonprofit American Solar Energy Society are “What year was your company established?” and “Where are its offices?”
Many states, municipalities, and utilities have their own incentive programs that will further reduce your costs, often significantly. For example, Wirecutter editor-in-chief Ben Frumin got an additional 19% of his solar installation subsidized by New York programs.
DSIRE, the Database of State Incentives for Renewables & Efficiency, makes it easy to find programs in your area using just your zip code. California, Minnesota, New York, and Texas have more than 100, and most states have at least several dozen. You still have to read through the descriptions of the individual programs to find those that apply to you (some have qualifying restrictions, such as income level), but having all of them gathered in one place for research purposes is a big help.
Any contractors you speak with should also be familiar with the programs you likely qualify for—after all, it’s in their own self-interest to help bring you to the decision to go solar—and if they are not, consider that a warning flag. Confirm that the contractors are authorized to submit proof-of-work statements to the utilities and agencies that handle the incentive programs, as well, since you’ll need that for your claims.
Installers may offer rates that are lower than banks’ too, which will lower your monthly payments, though likely not your total outlay.
“We try to make sure that we are very transparent with the customers as to what that looks like,” said J.W. Peters, co-founder of Solar Power of Oklahoma, one of the state’s oldest installers. “We have some options that are a 25-year loan at a 4.9% interest. But that loan product actually costs us more money to be able to offer to that homeowner. And so therefore, our cost estimate adjusts our baseline costs to adjust for that as well.”
You may find that it makes sense to put up some of the payment in cash. Wirecutter’s Erik Erickson carefully considered his options when working out the cost for his system. Eliminating his family’s monthly $415 electricity bill was a top priority, and “basically I’m getting down to $415 a month [in finance payments] if I put $7,000 down on top,” he said, “which is a chunk of change and was one of the biggest reasons I took a month to deliberate, because this doesn’t pencil out without extra money down.”
In the long run, it almost certainly will.
The tax credit is effectively a direct price cut on the cost of going solar. But solar installations also generally pay for themselves over time, through a combination of lowering your electricity bills and a process known as net metering.
Unless you plan to install storage batteries, even after going solar you’ll use power from the electrical grid at night, when your solar panels are producing nothing. And in high-demand periods—often summer or winter, when you’re cooling or heating your home, respectively—you may draw some electricity from the grid during the daytime, too.
Usually, you’ll still get a bill from your utility every month.
But much of the time, your system will produce more electricity than you need—weekdays when nobody is at home, for example, or shoulder months like March or April, when your area has a ton of sunlight and you’re not blasting your electricity-sucking air conditioner.
That excess power will go back onto the grid for other customers to use, and your utility will give you credit for the value of that power on your next billing cycle. That’s net metering, and with a well-designed system it means you’ll wind up paying very little for your electricity over the course of a year.
Over time, the money you save will more than cover the cost of the system and any loan interest.
However, it’s important to know how your utility calculates net metering, because that’s key to figuring out how fast you’ll see a return on your solar investment.
Knowing who provides your power and how the utility’s net metering works will make you a shrewder judge of contractors when you’re seeking bids.
Who provides the home’s electricity is one of the first questions Solar Power of Oklahoma’s J.W. Peters asks of prospective customers. Like most states, Peters explained, Oklahoma is served by a mix of publicly owned utilities, municipally owned utilities, and member-owned cooperatives. They use different net metering rates and credit structures—and some don’t offer net metering, period.
“We need to know who they have so I can figure that into the calculations,” Peters said. “We’ve seen a lot of kind [of] fly-by-night, door-to-door-salesman-type people coming in and knocking on doors in neighborhoods that know nothing about the utility structure in that area. They’re selling people systems, and in some cases even installing them, under false pretenses of what that system will do for those customers.” In the worst cases, he said, people have had solar installed, only to learn that they are not allowed to connect to the grid at all—so when the sun goes down, their home doesn’t have electricity.
Tom Broderick of Flagstaff, Arizona, talked to four installers when he was going solar in . “One of them knew what he was talking about—one,” he said. “Some of them said some really dumb things, and I didn’t call them on it, because I wanted to give them the opportunity to say more dumb things and find out what they really knew and what they really didn’t.”
Think like him. Understand your utility’s net metering program before seeking bids, and as Broderick emphasized, “Look at multiple installers. Get references. Check their business record with the Better Business Bureau. How long have they been in business? Are they certified?” Ideally that would mean certified by NABCEP, the North American Board of Certified Energy Practitioners.
Anyone researching this topic has likely stumbled upon some free online cost estimators, such as EnergySage’s tool.
Through that estimator, EnergySage calculates your potential lifetime savings from going solar based on your address and current monthly electricity bills, after which it solicits free bids from licensed and vetted solar contractors.
Another estimator, the National Renewable Energy Laboratory’s PVWatts, calculates your potential solar-energy production based on your address and roof size.
There’s also DSIRE, the Database of State Incentives for Renewables & Efficiency, which lists potential sources of low-interest loans, rebates, and other incentives for going solar based on your zip code.
Such cost estimators certainly help. But the reality is that to truly get a sense of the cost and value, you have to decide what you want solar to do for you—what you value most among the many benefits it can bring—and then work within your means to get a system that meets your needs.
Absolutely.
You can do a lot of things to lower your energy bills and carbon footprint that, happily, cost much less than a solar installation.
Consider community solar. You effectively pay for panels that are installed at a solar-production facility. They supply electricity to the grid at large, and you get a credit on your energy bill, much as you would with a system you installed at your house, but the household disruption and soft costs are eliminated.
Community solar is expanding rapidly, with annual growth more than doubling nationwide every year since . “Community solar has been a major driver of opening market access for folks, particularly people for whom residential solar isn’t financially or logistically feasible,” said Gilbert Michaud, assistant professor of environmental policy at Loyola University Chicago and policy division chair of the American Solar Energy Society.
At the end of , the baseline year of the most recent National Renewable Energy Laboratory report (PDF), community solar facilities totalling more than 6 gigawatts of capacity had been installed in 43 states and Washington, DC, with a third of that capacity installed in alone.
However, the distribution of community solar is uneven, with four states—Florida, New York, Minnesota, and Massachusetts—accounting for 75% of it (in terms of wattage) and the top 10 states accounting for more than 90%. Depending on where you live, you may have to do some legwork to find a local project to invest in.
Finally, and for older homes especially, relatively inexpensive upgrades to things like insulation and weather sealing can lower utility bills substantially. We cover many of the options in detail in our guide to home weatherizing. And Michaud pointed out that they too are supported by the Inflation Reduction Act—as part of the $8.8 billion Home Energy Rebates program—and by many state and local programs as well.
When I spoke with Iain Walker of Lawrence Berkeley National Laboratory in , he brought up a way of thinking about green technology that stuck with me.
There are dollar savings to consider, he said, and there are carbon savings—and sometimes the two don’t quite add up. A new induction stove would cost him considerably more in electricity each month than his old stove would cost him in gas, he said by way of an example. But its carbon footprint would be much lower, and that in itself is valuable to him.
Homeowner Tom Broderick told us, “[My] motivation is mainly climate change and doing something about it at my personal level,” but “it did matter that through my retirement, my costs would be lower for electricity.”
Homeowner Larry Gawel is pleased that he’s saving money and emissions at the same time: “Both of them are important to me.”
Wirecutter’s Erik Erickson plans to add an EV charger (and an EV) to his system, but “in a few years, after this is all through, because this is the most expensive project we’ve ever done.”
You will get efficient and thoughtful service from Jiwei.
For homeowner Tom Lee, the initial decision to go solar—in Los Angeles, back in —was basically a dollars-and-cents matter. He was already doing a major home renovation, so it was a sensible time to get the installation done. The system was not cheap, at around $60,000, but “this house was going to be my forever house, so I figured it’s a good idea, right?” he said. “Especially with all this money coming back to me [from rebates and utility savings].”
But as time and technology moved forward 15 years, so did his appreciation for what he’d done. “I feel proud that I’m a solar owner,” he said.
This article was edited by Harry Sawyers and Ben Frumin.
Home solar panels can reduce your electricity bill for decades. But if you're left with questions like, “Really?” or, “What’s the catch?” or, “How do solar panels even work?” no one would blame you, though solar panels are now a commonplace technology.
Whether you’re paying the cost of solar panels upfront and buying them, or getting a solar lease, it’s important to understand your decision and investment. Asking the right questions can help you find the best installer for you and weed out any bad deals along the way.
To achieve the best possible experience when you go solar, let’s play a game of 20 questions you can ask at your next solar consultation.
While you’ll still receive an electricity bill after going solar, you should save money. While it’s impossible to predict exactly how much solar panels can save you, installers can give you a reasonable estimate. Your actual savings will depend on how much your electricity rates change and whether incentives like net metering shift during your solar panels’ lifespan.
Your savings will also shift throughout the year, thanks to solar seasonality. It’s useful to get a clear understanding of your potential savings throughout the year and over the projected lifetime of your solar installation.
Asking your installer about available incentives is important to maximizing the value of your investment. Whether or not you qualify for the federal solar tax credit and other local solar incentives may significantly impact the return on investment of your energy system.
Around the country, solar incentives vary greatly by state and region, with some cities, counties, and utilities offering their own programs, tax credits, tax exemptions, rebates, and more.
Decide whether you will buy or lease a solar system based on your personal preferences, financial goals, and available options and make sure your installer can deliver what you want.
Buying means the system is your property and, in most cases, you will save more over the lifetime of your systems. A lease or power purchase agreement, such as Palmetto’s LightReach Energy Plan, will give you solar power from a home system with no upfront cost and manageable monthly payments.
Unless you’re able to pay for your panels upfront or are leasing them, you may need to finance your system through a loan. Many reputable solar installers offer loans, though you can always shop around..
By working with a company with multiple financing options, you are more likely to find a solar loan structured to fit into your budget that can unlock your long-term savings on electricity.
One of the most common questions solar companies are asked is, “What type of panels do you install?”
While there are differences in performance among solar panels, you probably don’t need to stress over the options. In some instances it may be beneficial to pay a bit more for highly efficient solar panels, you can typically achieve your savings and energy goals with multiple solar panel options, so long as your installer can provide solar panels of typical efficiency (around 20%) and wattage (350 watts and above).
You will likely have multiple solar warranties (product, performance, installation) associated with your energy system.
Before signing on the dotted line, talk to your installer about exactly what each of these warranties covers, how long the coverage periods are, and if you can extend the policies during the lifetime of your solar panels.
Along with warranty coverage, you should talk to your installer about the likelihood of system damage and what repair or maintenance procedures will be, even if solar panel maintenance is typically infrequent.
If you’re covered by a maintenance and monitoring plan, your installer will have a dedicated customer service team that can field your request and repair the part as soon as possible, ensuring your system will be back up and running without excessive time offline.
If you purchase an electric vehicle or grow your family, your electricity consumption will grow. If you anticipate you may want to expand your solar energy system in the future, talk to your installer about this possibility and what an upgrade may look like.
Depending on system setup and available space, it may be a better idea to oversize your solar system initially rather than add panels later. Or, your installer may make expanding easier by designing a microinverter-based solar system.
A company that sets an installation timeline (and has the past projects to prove it) is more likely to deliver a good end result. When talking to your solar installer, ask them about the anticipated installation schedule.
Although they may not be able to tell you a precise interconnection date during your initial conversation, reputable companies should be able to provide a breakdown of your solar installation timeline, including permitting, equipment delivery, and construction.
If your installer has a referral program, it’s a strong sign they are used to delivering good customer experiences. As the best advocates for any company are its customers, many solar companies will compensate those who refer new business in bill credits or cash.
If a solar contractor gives you a price and doesn’t explain how they arrived at that number, it’s a red flag you may not be getting the best deal possible. Although the average cost of solar panels varies across the country, the total price of any solar energy system can be broken down into hard and soft costs, including expenses associated with hardware, permitting, labor, and business overhead.
Inverters turn the electricity your solar panels generate into electricity you can use at home. String inverters and micro-inverters are the two main options. As every home solar project is different, choosing the right technology can maximize your system performance and return on investment.
If you purchase or finance your solar energy system with a reputable solar installer, they should be able to forecast an approximate break-even point at which your system will have paid for itself in savings.
In general, solar panel payback periods average somewhere between 7-10 years, depending on your location, the size of your system, and many other factors. A solar installer should be able to break down the expected performance of your system as it relates to the price of electricity in your area over time.
Today, most solar panels are installed with smart components that report system performance directly to a digital landing page. The Palmetto App, for example, allows you to track your solar panel performance alongside your electricity consumption (with a supported meter).
Even though it may be 20-30 years or more into the future, asking your installer about the end of your system's lifespan can help you avoid unwanted surprises later on.
Solar companies that plan to be around for decades are sure to have an answer for you when you ask about the decommissioning process. Critically, the end of your lease contract may give you options, like renewing your lease at a new rate, or buying out the system at the market value.
In recent years, some solar companies have gone out of business. Working with an established, experienced solar company could help you avoid picking a company that’s going to go out of business.
A company able to answer all your questions in a helpful way without putting pressure on you is a sign of a partner you’ll be able to work with and depend on for a long time.
Solar can supply you with the electricity you need to run your house, but reducing the amount of electricity you need can lead to savings, too. Getting an energy audit, upgrading your insulation, or electrifying your HVAC system or water heater may open the door to greater savings.
Your solar installer should be definitive about the state of your roof before installing solar panels. Your roof should be healthy at the time of installation, and replacing your roof and installing solar at the same time can save you time and money.
Going solar can be a great time to also electrify your home with a heat pump or other efficient, electric appliances, install an EV charger, add battery storage, or replace your roof. Combining projects could save you time and money, especially if you use the same company, and let you stretch your solar electricity farther.
When weighing your solar options, you should feel free to open up the discussion and allow installers to explain exactly why they deserve the job. A professional solar expert should want to give you all the info you need rather than stick to a sales pitch and make you feel forced into a decision.
In a high-pressure sales scenario, you may start to feel a solar installation company is pushing you to sign a contract right there, right now. If you feel rushed, asking for some time to make your decision will quickly show whether or not the company is acting in your best interest or is simply out to get your money.
Occasionally impending policy changes mean you need to rush, but even with those caveats, a reputable company should be happy to do follow-up calls and help you feel confident in your choice.
The right solar company should answer all your questions and concerns today and seem like a partner you’ll want to work with for 25 years or longer. Before, during, and after installation, is the solar installer listening to you and your needs? Or pressuring you into a specific plan, design, product, or deadline?
Your new home solar power system should deliver savings and reliable, clean, and renewable energy. It should be easy to understand and operate without extra work or stress.
Interested in seeing what it's like going solar with Palmetto? Or still have questions about solar in general? Get started today by using our solar savings calculator or contacting a Palmetto solar expert.
How do you prepare for a solar installation?
Before you go solar, get to know your energy usage and current utility bills. You can check your property’s suitability for solar, including your roof’s health and shading, and confirm that tax credits, net metering, and other incentives apply to you.
How do you find a good solar installer?
It’s ok to interview and ask many, and even tough, questions of a solar installer before committing to a major project, a substantial amount of money, and years of working together. You are looking for a person or company that’s knowledgeable, experienced, professional, and helpful.
Can solar panels really save you money?
Millions of homes in the US are saving money with home solar panels. While solar panels aren’t a fit for every home, they can lower energy bills and generate long-term savings. A reputable solar company will be able to explain the savings potential of solar at your home, including when it’s too small to be worth it.