When to Replace Solar Panels

Solar panels are built to last, usually 25 to 30 years. After that, replacement signs show up. But they do not keep the same level of power forever. Over time, the panels lose strength and provide less energy. When to replace solar panels at the right time? This is very important to know. It saves money and keeps your home energy efficient.

This guide explains the typical solar panel replacement signs, efficiency loss over time, and how to choose between repair and replacement. We will also look at cost-related factors in this blog. 

Common Signs of Solar Panel Aging

Every panel shows signs of aging as the years go by. Some are easy to notice; however, others are hidden until your bills rise. Here are the main solar panel replacement signs that you should watch for.

• Visible Damage

Panels can crack, chip, or lose parts due to storms or falling debris. Hail, snow, and wind can also cause scratches on the panels. For small cracks, you only need to call the team for repair. However, bigger damage stands on the side of apparent solar panel replacement signs, which means it is time to replace the system for the same energy efficiency you were experiencing in the previous years. 

• Lower Energy Output

The most prominent sign of solar panel aging is reduced electricity production. When searching for the answer to “when to replace solar panels”, see if your panels are making less power than before, particularly on sunny days. If yes, it means they are aging. Remember that you will still get some energy, but not enough to cover all your needs. 

• Rising Utility Bills

If your panels produce less power, you will have to get more electricity from the grid to meet your energy needs. It’ll increase your monthly bill. If you notice this change, call the team to check your solar panels for problems.

• Repeated Repairs

Some owners call technicians again and again for issues with solar panels. If you fix one problem and another one comes up soon after, it is better to stop paying for repairs. At this stage, the question of solar panel repair vs replacement often ends with replacement. So, go for it with the assistance of the experts’ advice. 

• Strange Color or Burn Marks

Old panels sometimes show yellow spots or burn marks. These are not just ugly, but they also reduce the ability of panels to absorb sunlight and produce enough energy. This type of wear usually means it is time to replace your solar panels.

• Expired Warranty

Most panels come with a 20- to 25-year warranty. After this, you will have to pay for all repairs from your pocket. If your warranty has ended, new solar panels can be a cost-efficient option. 

• Old Technology

Solar technology keeps improving. A system bought 15 years ago may not be as strong as a new system today. Modern solar panels are smaller, stronger, and give more energy. If you want better results, upgrading the system is a sound decision.

When Solar Repairs Are Worth It?

Before making a significant investment, it’s wise to check if repairs are still a good option. Sometimes, solar panel repair solves the issue without the need for a complete system replacement.

Minor Issues That Can Be Fixed

• Loose wiring connections
• Inverter problems
• Shading from nearby trees
• Small cracks in a single panel

In such cases, repair can restore system performance, showing replacement is not always necessary.

When Repair Is Better Than Replacement

• If your panels are less than 10 years old
• Efficiency loss is below 15%
• If the issue is isolated to one or two panels

For these situations, the repairing option is cost-effective. However, if repair costs start approaching the cost of replacement, the balance shifts. That’s when the solar panel repair vs replacement debate usually ends in favor of replacement.

Solar Panel Replacement Indicators

Sometimes, replacing is the only choice. Here are the top indicators when you need to think about solar panel replacement. 

• Large Efficiency Loss

Panels lose some power every year. Normal loss is 0.5% to 1% yearly. But if your system is dropping faster, like 3% to 5% each year, you are losing too much energy. It is one of the most apparent solar panel replacement signs. For efficiency estimation, ask for experts’ assistance and decide when you should replace the panels to achieve the highest efficiency level. 

• Major Damage from Weather

Storms, floods, heavy snow, or lightning strikes can damage multiple panels at once. When this occurs, repairs no longer make sense – in such instances, it would be savvier to replace the system rather than attempting repairs again and again.

• Regular Power Failures

Whenever your lights or appliances keep losing power frequently, even during sunny days, it is one of the significant solar panel replacement signs. Call out your team and schedule the replacement instantly! 

• Your Energy Needs Have Grown

Maybe you now use more electricity than when you first installed solar. Extra appliances, electric cars, or a bigger family directly increase your energy needs. Old panels may not keep up. Newer panels with higher capacity will meet your new lifestyle needs better.

Cost of Solar Panel Replacement

Replacing solar panels is a significant investment. The cost depends on your system size, the brand of panels, and labor costs. You must know all expenses before beginning to save maximum on this project. Here is a breakdown.

It is essential to compare repair vs replacement expenses. If repairs cross half the cost of new panels, replacement becomes the smarter financial decision. For precise and accurate estimation, contact solar estimators!

Solar Panel Efficiency Loss

Efficiency loss is the biggest reason why panels need replacement. It is natural and happens gradually.

• Simple rate: 0.5% to 1% per year
• After 10 years: 90% efficiency left
• After 20 years: around 80% efficiency is left
• After 25+ years: many panels drop to 70% or less energy efficiency

Understanding these figures helps you get the answer to when to replace solar panels. For example, if a 10-year-old system is working at only 60%, this is a significant issue. Repairs cannot restore natural aging. In this case, replacement is the only way to get your power back.

Why Timing is Important When Deciding on Solar Panel Replacement

Some people wait too long before replacing panels. It leads to higher bills, wasted energy usage, and more use of grid power, which leads to increased bills. Replacing on time keeps your home green while saving maximum savings.

Benefits of Timely Solar Panel Replacement

• Lower monthly electricity bills
• Stronger and more reliable power
• Access to the latest solar technology
• Better storage options with new batteries
• Chance to use government tax credits or rebates

By acting on time, you do not just fix problems, but you also improve your home energy needs for future benefits.

Pro Tips to Elongate the Lifespan of Your Solar Panels

You can slow down solar panel efficiency loss and hinder replacement by taking care of the system properly. Following simple steps will make the panels last longer with maximum energy efficiency possible.

• Clean them twice a year to remove dirt and dust
• Trim trees that create shade
• Get yearly professional checks
• Fix minor problems quickly before they grow

Conclusion

At some point, every system owner thinks about when to replace solar panels. It is where noticing solar panel replacement signs helps. If indicators reflect only repair needs, go for it. However, if there are significant issues with your panels, replacement is a better option. 

When you are confused about solar panel repair vs replacement, get experts’ assistance to integrate other factors like aging signs, expense, performance, etc. A reliable company, like NEDES.us, will equip you with valuable insights, ensuring you go the right way for maximum energy efficiency for the coming years.