The Long-Term Investment: How Long Do Solar Panels Last & Why It Matters
In the journey toward sustainable living, solar panels have emerged as a leading solution for cost effective renewable energy. If you’re considering going solar, understanding the lifespan of solar panels is crucial in order to make informed decisions. This article delves into the durability and effectiveness of solar panels over time, letting you know what to expect in terms of performance and maintenance. We will explore why solar panels can be a fantastic long-term investment, not only for financial savings but also for their environmental benefits.
The Lifespan of Solar Panels
Solar panels typically have a lifespan of 25 to 30 years. This does not mean that they stop producing electricity after this period, but their efficiency will likely decrease. Top rated installers will likely use the highest quality panels which are 92% efficient after 25 years, which is actually pretty remarkable. Typically, panels will lose 2-3% in year one, and then .25% each year after. Lower quality solar panels experience a degradation rate of about 0.5% to 1% per year, putting them at about 80% to 85% of their original capacity by year 25.
Factors Affecting Solar Panel Longevity
Several factors influence how long solar panels last:
Quality of Materials and Manufacturing: High-quality materials and superior manufacturing processes contribute to the longevity of solar panels. Panels from reputable manufacturers are likely to last longer and perform better over time. Working with a reputable and trustworthy installer should guarantee that they’re using high quality products.
Installation Quality: Proper installation ensures that solar panels are securely mounted and optimized for maximum sunlight exposure. Poor installation can lead to issues like water leakage and physical damage, reducing the panels' lifespan. Once again, make sure to research the company you choose to work with before trusting them with your home. Do they value quality, customer service, and doing the right thing over revenue and jobs completed?
Environmental Conditions: Solar panels are designed to withstand various weather conditions, but extreme weather events like hail, heavy snow, and high winds can cause wear and tear. Panels in areas with harsh climates may have a shorter lifespan.
Maintenance Practices: Regular maintenance, including cleaning and inspection, can extend the lifespan of solar panels. Dust, dirt, and debris can accumulate on panels, reducing their efficiency. Periodic cleaning and professional inspections help maintain optimal performance. Sadly, many solar companies are here today and gone tomorrow. Make sure to consider how long an installer has been in business and their track record of customer service before getting into what is really a long-term relationship.
Technological Advancements: Newer solar panels often incorporate advancements that enhance durability and efficiency. Investing in the latest technology can result in longer-lasting panels with better performance. That said, panels have made huge advancements over those used 25 years ago, but much like other technology the curve has flattened and year over year improvements are now much smaller than before. While waiting for technology to advance may have been valid in years past it’s hard to argue any financial benefit today.
