10 things you might have wrong about solar
August 30, 2017
More and more homeowners are finding that owning solar panels saves them money, increases the value of their home, and, oh yeah, puts a big dent in their carbon footprint.
But solar is moving so fast that yesterday’s facts are today’s myths. To weed out the misconceptions for you, we talked to Aaron James, one of the experts at EnergySage, a “solar matchmaker” whose online marketplace makes it easy to find financing and reputable solar installers. His top 10 misconceptions are below.
And by the way, if adding solar panels to your home isn’t sensible or possible, that doesn't have to stop you from being a part of the energy revolution. Community solar programs let you buy into or subscribe to a solar farm near you. Solar (or photovoltaics, “PV” for short) really is for everyone.
1. Solar is for tree huggers
There’s a purely economic case for solar, says James: it can save you money, because going solar often costs less than paying the electric company. In states that encourage solar with subsidies, it’s a real no-brainer. And in the 36 states that don’t have subsidies, PV systems still make sense in dollars. Plus, the trees will hug you back.
2. You need a perfectly sunny south-facing roof
Believe it or not, even a somewhat north-facing roof can be worth it in some cases. “With prices coming down so much, other roof planes are often cost-effective,” says James. Partial shading can be okay too, thanks to those lower prices and new electronics that manage shade. A ground-mounted system can be an option too.
3. You’ll have power when the grid goes down
Bummer, but no. Most systems are grid-tied, not “off the grid.” Meaning your system is feeding the grid too, not your own house. The power you generate offsets your electric bill. This is great because batteries are still pricey. “You’re basically using the grid as a free battery 24/7,” says James. “But if the grid goes down, your system goes down too, partly for safety reasons.”
4. You need a lot of cash
In 2016, the average 6-kilowatt residential system cost about $14,000 after federal tax credits, says James. Costs have come down dramatically in the last five years, but a PV system is still a big investment. Cash purchases and solar leases are no longer your only options. Solar loan financing options, including $0-down loans that allow you to finance the total amount of your solar panel system, eliminate the need for that initial wad of cash.
5. Solar panels need a lot of maintenance
Exactly the opposite is true. Solar panels are extremely durable and require little or no maintenance during their lifespan, which can be 25 years or more. That’s why the typical warranty can guarantee 80 percent production 25 years in. James says, “They’re so durable that they even extend the life of the roof underneath.”
6. The sun is all that matters
How much you’re paying for electricity is also key. The higher the rate, the more economic sense PV makes. And while sun is good, heat is not. “In hot weather, the efficiency of solar panels goes down,” says James. Homeowners in the Northeast often get more energy out of their PV in summer than those in states like Florida.
7. Solar panels hurt resale value
If you decide to sell your home, will the next owner want a PV-covered roof? Yes! Multiple studies have shown that homes with solar panels sell for more, and sell faster (you need to own the panels, not lease them). Plus, many states exempt solar from property taxes — you don’t get taxed on the value it adds to your home.
8. I should wait until PV gets even cheaper
PV prices probably will continue to drop. EnergySage estimates that over two years, the cost of a typical home system could drop by $2,700 or so. But in the meantime you’re missing out on PV’s financial benefits, which could outweigh the benefit of waiting. Plus, both federal tax credits and state incentives are trending down.
9. Trimming trees for solar is bad for the environment
Yes, our friends the trees take carbon dioxide out of the atmosphere. But meeting your energy needs with solar does much more to stem climate change than the trees you might need to trim or cut down. Says James, “The coal you would probably be burning otherwise is way, way worse. It’s really dramatic.”
10. My house is too old for solar
Lots of old buildings have PV. Sometimes you need to reinforce the roof so it can support the extra weight, but that’s not necessarily a deal breaker. What is true is that you don’t want to put PV over shingles that need replacement. A PV system lasts for 25 or more years, and it’s a giant pain to take it down to reshingle. A lasts-forever metal roof is great if it’s in your budget.
EnergySage is on a mission to make going solar as easy as booking a flight online. Their online marketplace, now in more than 30 states, has won the support and backing of the U.S. Department of Energy, New York State Energy Research & Development Authority, Connecticut Green Bank, and Massachusetts Clean Energy Center. Aaron leads the company’s supplier network and marketplace support divisions.