Summary
Are you a solar homeowner in Pacific Palisades? Here's what you need to know about solar hotspots and how to fix panels that overheat.
Key takeaways:
- Solar panel hotspots are a common issue that affects the performance and energy output of solar panels.
- Signs of hotspots include visible discoloration on panels and a sudden drop in system efficiency.
- During a routine inspection, a professional can detect hotspots and fix the issue.
California’s solar boom started in the early 2010s. Fifteen years later, many of these systems are still in use, continuing to produce affordable and clean energy.
However, aging panels require a little more care, and for solar homeowners in Pacific Palisades, it’s essential to know what to watch out for. One of the common issues that can appear as your solar array ages is the development of hotspots, which can be tricky to detect. Here’s why.
What’s a Solar Panel Hotspot, and What Causes It?
A solar panel hotspot refers to a specific area on a solar array where electrical resistance causes heat to accumulate. Instead of converting sunrays into energy, the panel generates extra heat that accumulates and has nowhere to dissipate.
Hotspots can appear for a number of reasons, but older panels are more likely to develop hotspots as their electrical components age:
- Dirt, leaves, or bird droppings block sunlight, forcing parts of the panel to work harder and causing a hotspot to develop in these areas.
- Wiring problems or defective cells can raise resistance in one part of the circuit, leading to overheating.
- Local shading from trees, chimneys, or nearby homes results in uneven sunlight. Over time, some cells work harder and develop areas of increased activity, known as hotspots.
- Drastic temperature changes at night can also cause hotspots to appear, which is something more likely to happen in coastal regions like Pacific Palisades.
If you don’t get hotspots fixed, the overheating can worsen and eventually cause the materials inside the panels to break down, leading to lasting damage and reduced solar panel performance.
Signs Your Solar Panels Have Hotspots
Knowing the signs of solar panel hotspots helps you act quickly before bigger issues develop. Most homeowners notice something is off when their energy bill rises or their monitoring system flags a drop in efficiency.
Common signs to watch for include:
- Discoloration, burn marks, or warping on the panel surface.
- Sudden reduction in energy output according to your inverter or monitoring app.
- Unusual electrical readings, such as voltage irregularities.
- Parts of the panel feel warm to the touch, while other areas remain cool.
Hotspots aren’t always visible. If you notice a decrease in solar panel performance and you’ve already checked for obvious dirt or shade, consider scheduling a professional inspection.
How Do Solar Pros Find and Fix Hotspots?
During a solar inspection, a team of professionals can use specialized thermal cameras or meters to pinpoint where heat pockets are developing on your roof. They can also test individual solar cells for resistance to find where current is building up.
If they detect a hotspot, here’s how they’ll fix it:
- If a solar pro catches a hotspot in its early stage, cleaning the panel can be enough. Removing dirt, bird droppings, or leaves can restore balance to your solar cells and stop the overheating.
- If the hotspot caused damage to the panel’s surface or electrical connections, a solar technician can replace the old electrical components and replace the sealant that protects the panel.
- For more advanced hotspots, solar repair options include replacing the damaged cell or swapping out the entire panel, depending on the severity of the damage.
A solar expert can also figure out what caused the hotspot to appear in the first place. If there is an issue with shading, they can adjust the panel orientation slightly or use micro-inverters and optimizers to balance the electrical load more evenly across your solar panels.
Hotspots in Pacific Palisades? Call Solar Service Professionals
At Service Professionals, we understand the unique challenges that homeowners face with solar panel hotspots. We offer thorough inspections, expert cleaning, and targeted repairs to keep your solar system in top condition. To maximize solar panel performance and secure long-lasting energy savings, please call us at 818-864-1264 or contact us online. We’ll schedule a panel inspection and utilize advanced methods to detect hotspots and other potential performance issues, ensuring your solar panels remain in top shape.
FAQ
What is a solar panel hotspot?
A solar panel hotspot is a heated spot on the panel caused by electrical resistance or blockage. Hotspots lower panel output and can damage solar panel materials if left untreated.
A solar panel hotspot is a heated spot on the panel caused by electrical resistance or blockage. Hotspots lower panel output and can damage solar panel materials if left untreated.
How do I know if my panels have hotspots?
Look for burn marks, energy production drops, and uneven heating on your panels. Monitoring your system’s output and scheduling regular professional check-ups helps catch these issues before they worsen.
Look for burn marks, energy production drops, and uneven heating on your panels. Monitoring your system’s output and scheduling regular professional check-ups helps catch these issues before they worsen.
Can I prevent hotspots on solar panels myself?
Basic cleaning and trimming trees help, but a professional inspection ensures that all electrical faults and hidden debris are identified early.
Basic cleaning and trimming trees help, but a professional inspection ensures that all electrical faults and hidden debris are identified early.
Is solar panel hotspot repair expensive?
Most minor hotspot fixes cost little if caught early. Repairs become more costly if damaged cells or wiring go unnoticed, so regular maintenance is a wise investment.
Most minor hotspot fixes cost little if caught early. Repairs become more costly if damaged cells or wiring go unnoticed, so regular maintenance is a wise investment.
