Solar Myths Debunked: 10 Things People Get Wrong
After thousands of solar installations across Colorado, we have heard every misconception in the book. Here are the 10 most common solar myths, debunked with real data and firsthand experience from ProGreen Solar.
Solar energy has gone from a niche technology to a mainstream home improvement, but misinformation still runs rampant. Every week we talk to homeowners along the Front Range who have been told something about solar that simply is not true. Some of these myths come from outdated information that was accurate a decade ago. Others are pushed by fossil fuel interests or repeated by well-meaning people who just have not looked at the data.
Let us set the record straight on the 10 most persistent solar myths with facts, data, and real-world experience from installing solar systems across Colorado.
Myth 1: Solar Panels Do Not Work in Winter
The truth: Solar panels work every day that sunlight reaches them, including winter days. In fact, solar panels actually operate more efficiently in cold temperatures because photovoltaic cells perform better when they are cool.
Yes, winter days are shorter and the sun sits lower in the sky, so total daily production is lower than in summer. But Colorado winters are remarkably sunny. We average over 20 clear or partly cloudy days per month even in December and January. Our installation data shows that Colorado solar systems typically produce 25 to 35 percent of their annual energy during the winter months of November through February.
Snow cover can temporarily reduce production, but Colorado's dry climate and abundant sunshine mean that snow typically slides off panels or melts within one to two days. The net impact of snow on annual production in Colorado is usually less than 3 to 5 percent. For more on how Colorado's climate affects solar, see our article on solar performance in Colorado's climate.
Myth 2: Solar Panels Will Damage Your Roof
The truth: A properly installed solar system does not damage your roof. It can actually extend the life of the roofing material beneath the panels by shielding it from direct UV exposure, hail, and weather.
Professional solar installations use engineered roof attachments that are sealed with flashing and waterproofing materials. At ProGreen, every roof penetration is sealed to exceed roofing manufacturer specifications, and our 25-year workmanship warranty covers any roof-related issues caused by the installation.
Roof damage from solar panels is almost exclusively caused by unqualified installers who cut corners on attachment and waterproofing. This is why choosing a reputable, experienced installer with a strong workmanship warranty is critical. Learn about the precautions we take during our installation process.
Myth 3: Solar Is Too Expensive
The truth: Solar panel prices have fallen by over 70 percent in the last decade. A quality residential solar system in Colorado now costs between $2.50 and $3.25 per watt, which translates to $20,000 to $26,000 for a typical home system before any incentives.
Is that free? No. But consider what you get: 25 to 30 years of electricity production that replaces ever-increasing utility bills. Over its lifetime, a solar system in Colorado typically saves homeowners $50,000 to $80,000 or more in electricity costs. The payback period is generally 8 to 11 years, after which the electricity is essentially free.
Solar loans also make it possible to go solar with no money down, with monthly loan payments that are often comparable to or lower than your current electric bill. See our guide on solar loans vs. leases vs. PPAs for financing options.
Myth 4: You Need a South-Facing Roof
The truth: South-facing is ideal, but it is far from required. East and west-facing roof surfaces produce 80 to 85 percent as much energy as south-facing surfaces. Southwest and southeast-facing roofs produce 90 to 95 percent of optimal output.
Even a system producing 80 percent of theoretical maximum is still a strong investment in Colorado given our abundant sunshine. Many of our most satisfied customers have east-west split systems with panels on both sides of their roof. These systems produce slightly less total energy but generate more consistently throughout the day, which can actually be advantageous for homeowners with time-of-use billing.
The only truly problematic orientation is north-facing, which receives significantly less direct sunlight. But even then, many homes have multiple roof surfaces, and a system can be designed using just the favorable surfaces.
Myth 5: Solar Panels Require Constant Maintenance
The truth: Solar panels have no moving parts. There is nothing to lubricate, no filters to change, and no mechanical components that wear out. Modern solar panels are designed to sit on your roof and produce electricity for 25 to 30 years with virtually no maintenance.
Rain handles the majority of cleaning in Colorado. An occasional rinse with a garden hose can remove any accumulated dust or pollen, but even this is rarely necessary. The monitoring systems that come standard with Enphase and SolarEdge inverters alert you and your installer if any panel is underperforming, so issues are caught automatically without you climbing on the roof to check.
For more on what maintenance actually looks like, read our article on how to clean solar panels.
Myth 6: Solar Does Not Work on Cloudy Days
The truth: Solar panels produce electricity from light, not direct sunshine. On an overcast day, they yield 10 to 25 percent of a clear day's production, while partly cloudy days can produce 50 to 80 percent of full output.
Germany, with significantly less sunshine than Colorado, is one of the world's leading solar energy producers. Colorado averages over 300 days of sunshine per year, making it one of the best states for solar. Cloudy days are factored into every production estimate we provide, and our systems consistently meet or exceed projected annual output. Check out our detailed look at solar panels on cloudy days.
Myth 7: Solar Panels Contain Dangerous Toxic Materials
The truth: The most common residential solar panels are crystalline silicon, made primarily of silicon, glass, aluminum, and small amounts of copper and silver. Silicon is the second most abundant element in the Earth's crust and the same base material used in computer chips.
Some thin-film solar technologies use cadmium telluride, but these are primarily used in utility-scale projects, not residential installations. The QCell, REC, and Meyer Burger panels that ProGreen installs do not contain hazardous materials in concentrations that pose a health or environmental risk.
At end of life, solar panels are recyclable. The glass, aluminum, and silicon can all be recovered and reused. The solar recycling industry is growing alongside the volume of panels reaching retirement age. For more on this topic, see our article on solar panel recycling.
Myth 8: You Cannot Sell Your House With Solar Panels
The truth: Homes with owned solar systems sell faster and for more money than comparable homes without solar. A study by the Lawrence Berkeley National Laboratory found that solar panels add an average of $15,000 to a home's sale price, and in some markets the premium is higher.
In Colorado, the added home value from solar is also exempt from property tax reassessment, so the value increase does not raise your property taxes. Buyers increasingly view solar as a desirable feature because it means lower monthly energy costs from day one of ownership.
The important distinction is between owned and leased systems. Owned solar systems, whether paid in cash or through a loan, transfer cleanly with the home sale. Leased systems or PPAs can complicate a sale because the buyer must qualify to assume the lease. This is one reason we generally recommend ownership over leasing. Read more about how solar affects home value.
Myth 9: You Need Batteries to Go Solar
The truth: The vast majority of residential solar systems in Colorado are grid-tied systems without batteries. They work perfectly well without any battery storage.
Here is how it works: during the day, your panels produce electricity. Whatever you do not use immediately is sent to the grid, and you receive a credit on your electric bill through net metering. At night or on low-production days, you draw electricity from the grid and use those credits. The grid effectively acts as your battery.
Batteries like the Tesla Powerwall and Enphase IQ Battery are excellent additions for homeowners who want backup power during outages, want to maximize self-consumption of their solar energy, or have time-of-use billing that makes battery arbitrage financially attractive. But they are optional, not required.
Adding batteries increases system cost by $10,000 to $15,000 per unit, so for many homeowners, starting with a grid-tied system and adding batteries later makes the most financial sense. For a detailed comparison, see our do I need a solar battery guide and our home battery storage guide.
Myth 10: Solar Is Only for Wealthy Homeowners
The truth: Solar has become accessible to homeowners across a wide range of income levels. Multiple financing options make it possible to go solar with zero money down and monthly payments that are often lower than your current electric bill.
Solar loans with terms of 10 to 25 years are widely available. A homeowner with a $150 monthly electric bill might finance a solar system with a loan payment of $120 to $140 per month, saving money from month one while building equity in a system they own. Once the loan is paid off, the savings become even more dramatic.
Beyond financing, the demographics of solar adopters have shifted significantly. Early solar adopters were indeed often affluent homeowners, but today solar installations span every income bracket. Working families, retirees on fixed incomes, and middle-income homeowners are all going solar because the economics make sense for anyone with a suitable roof and a meaningful electric bill.
In fact, solar can be especially valuable for homeowners on fixed incomes because it locks in energy costs for decades, protecting against the unpredictable rate increases that strain tight budgets.
The Bottom Line: Get the Facts Before You Decide
Solar energy is a proven, mature technology backed by decades of real-world performance data. The myths persist because they are repeated so often, not because they hold up to scrutiny. If you are considering solar and have heard something that gave you pause, we encourage you to dig into the data.
At ProGreen Solar, we believe in education first, sales second. Every consultation we do includes honest answers to your questions, realistic production and savings projections, and zero pressure to make a decision on the spot.
Want to learn more? Explore our complete guide to solar in Colorado, or call us at (303) 484-1410 to schedule a free, no-obligation consultation. We will separate the facts from the fiction for your specific home and show you exactly what solar can do for you.
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