5 Misconceptions About Grid-Tied Solar Systems

Thinking about switching to solar but not sure if a grid-tied solar system is right for you? You’re not alone. There are plenty of myths floating around about how solar energy works, especially here in Maine where winter seems to last half the year. But don’t let misinformation keep you from making a smart, sustainable investment. Let’s clear up some of the most common misconceptions about grid-tied solar systems—because the truth is a lot sunnier than you might think.

1. “Grid-Tied Solar Systems Don’t Work in Winter”

Let’s get this one out of the way: Yes, solar panels work in winter! In fact, solar panels often operate more efficiently in cold temperatures. Solar energy comes from sunlight, not heat, so as long as there’s daylight, your panels are generating electricity—even when it’s chilly outside. 

Maine’s shorter winter days may reduce the total amount of energy your system produces, but your grid-tied setup ensures you still have all the power you need by pulling from the grid when solar production is low.

2. “Solar Panels Stop Working on Cloudy Days” 

We get it—Maine isn’t exactly known for endless sunny skies (Maine averages 192 sunny days per year, while the US average is only slightly higher at 205 days). But here’s the good news: solar panels don’t need direct sunlight to work. They can still generate electricity on cloudy days, albeit at a reduced rate. Your grid-tied system will automatically compensate by pulling power from the grid when needed. 

Plus, on sunnier days, any extra energy your panels produce gets sent back to the grid, earning you credits through net metering to use during less sunny times.

3. “If the Power Goes Out, My Grid-Tied Solar Will Keep Running” 

This one might surprise you: grid-tied solar systems shut off during a power outage. This is a safety feature called anti-islanding, which protects utility workers who may be fixing power lines nearby. 

If you want to keep your home powered during outages, you’ll need to pair your grid-tied system with a battery backup. Without batteries, your system will temporarily stop producing electricity until the grid is back online.

4. “Grid-Tied Solar Systems Are Too Expensive” 

While the upfront cost of solar can seem steep, grid-tied solar systems are more affordable than you think. Federal tax credits can cover up to 30% of your installation costs, and Maine offers additional incentives like net metering and financing options through Efficiency Maine. Plus, the long-term savings on your energy bills can help your system pay for itself in as little as 7-10 years. After that, the energy your panels generate is practically free!

As of January 2025, the average cost was $3.16 per watt, but a Maine Solar Sheds costs about $2.50 per watt.

5. “Solar Panels Will Damage My Roof”

Worried about your roof? With Maine Solar Sheds, you don’t have to be! Unlike traditional solar installations that attach panels directly to your home’s roof, we install solar panels on custom-built sheds—so your house stays untouched. That means no drilling, no extra weight on your roof, and no worries about future roof repairs.

Plus, our sheds aren’t just practical—they add extra storage, workspace, or hobby space to your property. You get all the benefits of solar energy without any of the stress about your home’s roof. It’s a win-win: clean energy and extra space, all while keeping your home in perfect shape.

If you want to learn more about our sheds, subscribe to our newsletter or follow us on Facebook. When you’re ready to switch to solar, give us a shout and we’ll provide you with a quote and inspect your site for install.