Solar Cheat Sheet: Your Guide to Getting Solar Panels – CNET
Over the past few years, the stars (particularly the one at the center of our solar system) have aligned to make residential solar panels increasingly appealing for meeting your home’s energy needs.
The rising costs of energy across the US, along with falling prices for solar panels aided by federal tax incentives, have simply made the economics of solar power not only attainable but beneficial for homeowners in the long run.
“If you looked at solar just a few years ago, costs have continued to come down since then,” said Ben Delman, communications director at Solar United Neighbors. “It depends on your situation, but more and more homeowners and families are deciding that solar makes sense for them as a way to save money by taking control over where their electricity comes from.”
Can solar panels save you money?
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Below, we’ve collected CNET’s expert advice to get you through the process of purchasing solar panels.
Solar panels work in many different climates, not just the sunniest.
How do solar panels work?
Buying a solar panel system means buying a lot of equipment the average person doesn’t have reason to know about. In the most basic terms, photons from the sun are absorbed by the solar panels and converted into direct current, or DC, electricity. For this energy to be used in American homes, it has to go through an inverter attached to the solar array to become alternating current, or AC, electricity.
Read up on what you’ll actually be buying with the stories linked below:
Is there a solar panel option that works for me?
Fortunately for the solar-curious, many options exist for homeowners and even renters to get some or most of their electricity needs met with energy from the sun.
The most common way to go solar for homeowners is the installation of panels on their roofs. These systems can be purchased directly through an installer (or assembled for the DIYers) as a large cash purchase or through relatively affordable financing (such as a 1.99% APR 15-year loan). There are also options for rooftop solar for those who may not have the capital to get a project started. These are solar leases, where a homeowner pays a fixed monthly cost to a company who retains ownership of a solar system; or a power purchase agreement, in which a homeowner pays for the electricity generated by solar panels rather than the system itself.
Finally, both homeowners and renters in many places have access to community solar. This option allows people to opt in to a nearby solar farm to enjoy some energy savings.
Regular cleaning can improve solar panel production, especially in dry, dusty climates.
How much do solar panels cost?
The costs of solar panels will depend on a few factors, including where you live, how much of your energy needs you want the system to cover, whether you install it yourself and whether you want a battery (which could cost as much as the system itself). The average cost was about $3 per watt in 2022 for an 8 kW system through an installer, according to the consulting firm Wood Mackenzie.
The way you pay for your system is vital. You’ll notice the biggest hit to your bank balance by paying for solar outright, while financing will spread the expense out over years but with added interest. A lease or PPA is most friendly to the budget-minded, but you won’t enjoy the long-term benefits that come with owning a system outright.
How much do solar panels cost in my state?
Here’s the average total cash price, cost per watt and system size for a solar panel system in your state, according to data from FindEnergy.com. These prices don’t factor in tax credits or state incentives. Certain states don’t have any FindEnergy solar data and are grayed out on the map.
How much money will solar panels save me?
If you’re buying a system outright or financing it, you’ll receive a 30% tax credit through the Inflation Reduction Act.
To get a better idea of when to expect a return on investment, look at how much energy you’ve consumed in the past year or two and how much it cost you. Then, working with an installer, figure out how much of your energy you’d like to offset with solar and how much the system will cost. Eventually, the savings from not having to buy electricity from your utility will be greater than the cost of the solar system itself.
“In terms of payback, broadly seven to 12 years is a decent average when you see returns from investment in solar after purchasing a system,” Delman said.
Ground-mounted solar panels might be a better option for some homes.
Can I install solar panels myself?
It is possible to install most of a solar panel system yourself — mounting the panels on your roof and connecting them to each other. But if your home is connected to a grid, you’ll need to hire a licensed electrician for the final connection needed to feed electricity to your utility.
“Another thing to keep in mind if you’re doing it yourself is whether the warranties for the panels that you purchase require them to be installed by a professional,” Delman said. “Often when people do it themselves, they’ll hire an electrician to do the finishing work so it can get certified. It’s also good if you’re not an expert to have somebody with expertise to just go over the wiring and make sure that everything is where it should be.”
Where should I shop for solar panels?
If you want to buy panels directly, most hardware stores and larger retailers have them available. If you’d like to get them through a professional, a good place to start, according to Delman, is the website of your local solar industry association (for example, the New York Solar Energy Industries Association). These organizations should have a list of its members, which will often include installers and suppliers. Typically, installers work with one or two solar panel brands.
“Look for an installer who’s experienced, particularly with the kind of situation you have at your home,” Delman said. “Have they worked with the same roofing materials? Do you want a ground mount system installed? Check reviews on Yelp, Angie’s List, Google and others, and get references too.” (Solar United Neighbors also offers resources for going solar, free of charge.)
The best way to make sure you’re getting the best deal on your solar panels is to get multiple quotes and ask as many questions of your potential installers as you need. CNET has reviewed many of the national solar companies, but it’s a good idea to check into local installers, too, who sometimes can offer lower prices.
How do I maintain solar panels?
Solar panel maintenance is generally minimal and fairly easy. Even so, we’ve got the info you need to keep your panels in the best possible shape.
Does solar work where I live?
Solar panels, in general, will work in a variety of climates, even those with frigid winters. The more important questions to ask are: Does my roof get adequate sunlight? Are any trees shading my roof? And most importantly, does my utility offer net metering?
Net metering is perhaps the most important aspect of going solar, in that it stipulates that your energy utility will pay you for the energy created by your solar panels that you don’t consume. Net metering ensures that the return on investment in going solar is financially sound.
More on solar in your state
Do I need a backup battery?
For most homeowners, buying a backup battery is an expensive proposition, costing almost as much as a solar system itself. Solar batteries can cost anywhere from $12,000 to $22,000, according to the US Department of Energy. If your home is connected to the grid, the high price of batteries puts it squarely in the non-necessity column.
That being said, there are instances where a battery may be worth the expense. If your area is prone to frequent blackouts and/or you have medical needs that, for example, require cold insulin or medical equipment, a battery is a good investment. Batteries will also be a necessity if you live off the grid.
You’ll need a battery to go off the grid with solar panels. A bigger one than these.
Does solar increase the value of my home?
Going solar has another benefit for homeowners: it can boost the price of their properties if and when they decide to sell. According to studies by the Lawrence Berkeley National Lab and Zillow, homes with solar panels often sell for about $10,000 more compared to those that don’t.
Are solar panels a scam?
No. Solar panels are a proven technology that can help you shift some of your energy use to cheaper, greener electricity. But that doesn’t mean that scammy companies (while apparently rare) don’t exist. The company discussed in the story linked below recently went out of business, but a bit of caution is a good thing.
What is net metering?
Net metering — the process by which you’re paid for electricity generated by your solar panels but sent back to the grid — is a critical factor in whether homeowners should go solar.
“Let’s say during a beautiful sunny day, you’re at work, the lights, TV and dishwasher are off, so you’re probably generating more electricity from your system than you’re consuming,” Delman said. “When that happens, that electricity goes to the electric grid through your electric meter to be used by your neighbors. Net metering is what ensures you receive credit for that electricity so that your investment is still being paid back even if you’re not using the electricity yourself.”
You can see what your state’s policy toward net metering is here.
Should I go solar?
Solar won’t be an option for everyone. If your home does not receive adequate sunlight due to shading on your roof, you live in a state without net metering or there’s no community solar, going solar may not be viable for you.
But with rising energy costs and the falling price of solar panels, for many people there’s never been a better time to go solar. There’s options to go solar that should fit most people’s needs, whether that’s through financing, a solar lease, PPA or community solar, that will allow them to start seeing savings on their energy bills almost immediately. By most estimates, a solar system starts paying for itself after between seven and 12 years.
Powering your home with solar not only allows you to get your electricity from a clean source, but provides an unmatched return on investment that will save you money on your energy bills and boost the value of your home.
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