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The cost of installing solar panels has fallen drastically since their first days in 1977, making solar energy accessible for more homeowners and businesses. They are still a large investment though, and we often get questions about how long they last and what can be done to increase their lifespan. 

Our pros at Solar Bear outline how long solar panels last, and how to make them last as long as possible. 

The Lifespan of Solar Panels 

Though their exact lifespan depends on many factors, such as the type of panel, how the system is installed, maintained, and the climate where you live, solar panels generally last 20-30 years. 

Solar Panel Degradation Rate 

On average, solar panels degrade and lose efficiency at 0.5% per year. This means that after a standard 25-year warranty is completed, your solar system will provide 87.5% of its factory output.

Which Solar Panels Last the Longest? 

Both polycrystalline and monocrystalline silicon solar panels can last for a long time—often longer than their 25-year warranties. 

• Monocrystalline silicon solar panels are the most efficient and have solar cells that are shaped like squares with cut-off corners. Their high efficiency isn’t cheap—they are typically more expensive. 
• Polycrystalline silicon solar panels are slightly less efficient and can be less expensive to install. 

What Makes Solar Panels Less Efficient? 

Heat

Heat can cause cracks and allow moisture to get inside your solar panels. Moisture is a big issue that can degrade your panes and reduce their energy output. 

In extreme heat, the panels can become discolored which also makes the entire system less efficient. 

Wind

Strong winds can cause the entire solar array to vibrate and loosen the fasteners that hold the system together. 

Rain

If your solar panels weren’t installed correctly, rain can cause corrosion that weakens the metal understructure and framing as well as reduce your system’s efficiency.

Ways to Make Your Solar Panels Last Longer  

To increase the lifespan of your solar panels, consider the following: 

Get Your Panels Checked and Maintained 

Some of the top issues that affect solar panels are broken glass, cracked panels, and loose connections. Proper maintenance is key to ensuring that your solar panels are efficient. 

Replace Inverters After 10 Years 

Faulty inverters can cause system failure and generally have a lifespan of 10-15 years, so within 10 years of installation, it is a good idea to replace them. 

Many homeowners choose to install highly efficient microinverters that can last up to 25 years—almost as long as the panels themselves. 

Maintain and Replace Batteries

If you have a large bank of solar batteries, make sure to rotate them periodically. This allows each battery to receive an equal amount of charge and extend its service life.

You can also improve battery charging by using larger battery cables which often carry lower resistance. 

Last, never leave your solar batteries uncharged for extended periods, as this can negatively impact their efficiency and capacity.

Keep Your Panels Free of Debris

While solar panels are strong enough to withstand high winds, heavy snow, and even hail, they still need to be kept clean to maximize their efficiency and increase their lifespan. 

If you regularly remove dust, pollen, bird droppings, and leaves from your solar panels, they will last longer. When you wash them off, make sure to do so in the morning before they heat up to ensure that they don’t crack. 

Work with a Trusted Solar Panel Installer 

The best thing that you can do to make your solar system last longer is to get them installed by a reliable installation company from the very beginning. Solar Bear is the highest-rated solar installation company in Florida and offers the longest warranties in the industry. 

Say Yes to Solar

As you can see, the lifespan of your solar panels depends on many factors. You need to watch out for extreme weather and clean them periodically to ensure they are efficient and performing properly. 

The best way to ensure that your solar panels last is to choose a company that offers a solid warranty like Solar Bear! Say yes to solar with Solar Bear today — (407) 904-7585!

Florida is called the Sunshine State for a reason and if you have been thinking about installing a solar panel system to harness the power of the sun for your Florida home, you could save thousands on energy costs. 

Before you install solar, look at these facts from our solar pros at Solar Bear!

The Benefits of Solar Power in Florida 

There are many benefits to installing a solar panel system in our great state including:

Zero Operating Costs 

Yes, there are installation costs, but operating your solar panel system in Florida costs you nothing. With our ample sunshine in Florida paired with affordable financing and incentives, you will begin to see savings from day one. 

Always On

When the sun is shining, your solar panel system will be generating energy—it’s that simple! 

Clean and Renewable

According to the EPA, electricity produces more greenhouse gas emissions than anything else. Solar power reduces dependence on fossil fuels and creates no air pollution, therefore your carbon footprint will be reduced when you install solar power on your property. 

When you go solar in Florida, you know that you are doing your part to protect the environment. 

Virtually Maintenance Free

Since we don’t get snow in Florida, solar panels are virtually maintenance-free. While you will need to get them cleaned and ensure that leaves are not obstructing their panels, solar panels are easily maintained and hassle-free. 

Flexible Financing

At Solar Bear, we offer a variety of flexible financing options for homeowners across Florida. When we come by for an in-house estimate, we help you find a financing option that works best for you. We can offer financing for our solar installations and our spray foam services through EnerBank ™ and Sunlight Financial ™.

Net Metering in Florida

Florida has a strong net metering program which is great if you want to install solar panels in the Sunshine State! Net metering allows you to offset all or most of your energy costs with your solar system. Any excess power that your solar system produces gets sent to the grid and many Florida utility companies credit their customers at the full retail rate for that power. 

This credit rolls over for 12 months, so when you are low on solar power, such as at night, you can pull power from the grid while your credit offsets any new consumption charges. 

In Orlando, the Orlando Utilities Commission pays its customers .05% for every Kw hour that their solar panels produce. P.s. This is in addition to the retail-rate net metering that they offer. Easy money! 

Solar Incentives for Floridians

Residents of Florida who install solar panels are eligible for the federal Renewable Energy Tax Credit which is equal to 30% of the cost of a PV solar system. Keep in mind this credit will decrease through 2022. 

Further, rooftop solar panel systems are exempt from Florida state sales tax which will save you hundreds upfront. Also, Florida offers a property tax exemption on the value of your entire solar system so no need to worry about your property taxes going up!

Top Five Reasons to Go Solar in Florida 

• Protect yourself against rising energy costs
• Increase your property value
• Reduce your carbon footprint
• Support your local community
• Gain energy independence

Install Solar in Florida with Solar Bear 

If you are interested in installing solar panels in Florida, there has never been a better time! Go solar today! Contact Solar Bear today for a solar installation quote and to discuss what incentives you may qualify for— 407-904-7585!

People tend to talk about solar power as though it is a newfangled concept, but in reality, humans have been using solar power in some form or fashion since as early as the 7th century BC! Even solenoid cells (the cells which make up the glimmering surfaces of today’s solar panels) have been around for almost 70 years now. The fact of the matter is that solar power is a tried-and-true energy solution that has been part of our world for quite some time. Here at Solar Bear Tampa, we thought it might be nice to share a quick run-down of the history of solar power with you. 

Before the solenoid cell (7th Century BC – 1800s)

The earliest known instance of people converting sunlight into energy is the 7th century BC, when humans began to use glass and other magnifying materials to concentrate sunlight enough to start a fire in some kindling. If you’re picturing some kid burning up ants with a magnifying glass at recess, you’re on the right track. Then, a few centuries later, in the 3rd century BC, the Greeks, Romans, and the Chinese used a similar method to light torches, only they used refracted sunlight from mirrors. Throughout the Americas, native cultures built homes out of adobe and clay, with the express purpose of capturing the sun’s warmth throughout the day in order to keep themselves warm at night. 

Solar in the industrial age (1839 – the 1900s)

In the early 1800s, society became interested in alternate sources of power. Steamboats were invented. Electricity was discovered. And in 1839, a Frenchman named Edmond Becquerel discovered solar power as we know it today. Rather, he discovered the “photovoltaic effect,” which is the process by which modern solar panels store solar energy. Another French inventor, a mathematician named Augustin Mouchot, felt inspired by Becquerel’s work, and by the 1860s, had registered multiple patents for solar-powered engines. Soon, American engineers followed suit, with the idea of solar power gaining popularity overseas into the 1880s. A New York inventor, Charles Fritts, created the first solar cell using gold-coated selenium in 1883, only this cell produced but a fraction of the power modern solar cells can generate today. Quickly thereafter came patents for more solar cells, thermal batteries (the predecessor of the modern-day solar batteries that make long-term solar power possible), thermal generators, and so forth, in countries all over the world. Despite these many advances, solar power wouldn’t really shine again until decades later. 

The solenoid cell is invented (1954) 

Realizing the conductive limitations of Selenium-based solar cells, in the 1950s, Bell Laboratories started to experiment with silicone-based solar cells. They found that thanks to a higher conduction rate, these silicone-based cells could produce 6 times the power of the original selenium solar cells. This breakthrough in photovoltaic (PV) technology would be the catalyst for all the solar power innovations we know and love today. Soon after they developed the new solenoid cell, the scientists at Bell built the first solar panels. 

Solar panels gain popularity (1960s – 1990s)

Though the geniuses at Bell Labs had cracked the code on efficient solar power, it was still very cost-prohibitive, and could only be used in projects with heavy funding. In 1958, NASA and other space exploration agencies around the world began to power their satellites with solar panels. In 1973, the University of Delaware built the first solar building, called “Solar One,” which ran entirely off solar power thanks to solenoid cells built directly into the building. Between 1957 and 1968, Hoffman Electronics improved solar cell conversion even more, more than doubling the amount of power that could be derived from each new solenoid cell. In the 80s and 90s the first solar aircraft and spacecraft were built, and the efficiency of solar cells was improved even further. All these advances meant more public awareness of solar power, and more access to solar power thanks to cheaper prices. 

Solar power today

All this history brings us to today—the golden age of solar as we know it thus far. The US government has incentivized green energy alternatives like solar, and individual states, like Florida, even offer tax deductions for homes that incorporate solar power into their energy plans. It is easier and more affordable than ever to switch to solar. Call us at Solar Bear Tampa today, and we’ll get you an estimate.

At Solar Bear Tampa, we try to teach all of our customers that solar panels are an investment, one that lasts for 25-30 years. Over the decades, your solar panels will not only help you save on your home electric bill, but also will help you make a difference in the environment. But 25-30 years is a long time, and lots of things can happen in that amount of time. Sometimes, your roof will need repairs. Or maybe your personal style will change, and you decide to remodel your home. In either of these situations, if your solar panels have been installed on your roof, you will need to uninstall those solar panels to make the appropriate repairs or changes, and then reinstall them when your construction work is finished. 

As a reminder, we recommend that solar panels be installed only on new, sturdy roofs with no apparent signs of damage or future damage. Uninstalling and reinstalling solar panels can be costly, and if you can avoid it, we recommend that you do so. 

However, if you find that uninstalling your solar panels is inevitable, we can help you through the process. Here’s what to expect. 

As with any home improvement work, the first thing you’ll need to do is schedule a time with a solar expert so that they can power down your system safely. Then the expert or team of experts will start the work of removing the panels and the hardware before removing the wiring from your roof. As they uninstall, they will fill any holes or gaps in your roof left behind from the panel installation with roofer’s cement. The removal process should take a few days, depending on the slope and condition of your roof. 

Then you will be free to repair or adjust your roof however you like. This timeline will depend on your roofing contractors. Before starting any repair work, we recommend that you let your roofing team know that you’ll be uninstalling and reinstalling solar panels as part of the renovation or repair process. After your work on the roof is complete, your solar experts will find a time to rewire your roof, reinstall your panels, and turn your solar power back on. 

There you have it—while it seems daunting to uninstall and reinstall solar panels on your roof, the process is pretty straightforward, especially when you have the Tampa Bear Solar team on your side. 

Some other things to keep in mind before scheduling a solar panel uninstall and reinstall: 

• You’ll need a dry, safe place to store your solar panels during roof repair. 
• If your panels are in good condition (and stored safely), you’ll likely be able to re-use your old solar panels, hardware, and sometimes even wiring, which will save you money. 
• You should consider replacing your panels if they are almost thirty years old—a solar expert can help you decide whether you should reuse or replace your existing panels. 
• While you technically can uninstall and reinstall your solar panels yourself, this can be dangerous, risky, and expensive. We highly recommend contacting the experts. 

Set up an appointment with Solar Bear Tampa today!