Solar panels are becoming increasingly popular as a source of clean and affordable energy for homes and businesses in Norfolk and Norwich. These systems, which convert sunlight into electricity, offer a way to reduce both energy bills and carbon footprints. However, like all technology, solar panels can face challenges that affect how well they work.
However, like any technology, these systems can encounter snags that affect their performance and longevity. Our heating engineers shed light on the typical problems solar panel owners might encounter and provide straightforward advice on how to solve them.
Types of Solar PV Issues and How to Fix Them
Inverter Problems
Inverters are crucial components in solar PV systems, converting direct current (DC) generated by solar panels into alternating current (AC) for household use. When inverters malfunction, the entire system's efficiency is compromised.
Faulty installation
Improper wiring or incorrect settings can lead to inverter failure.
Overheating
Inadequate ventilation or extreme temperatures can cause inverters to shut down.
Grid voltage fluctuations
Unstable grid connections can trigger inverter safety mechanisms.
Software glitches
Outdated firmware can cause operational issues.
How to fix inverter problems
Check connections
Ensure all cables are securely connected and free from damage.
Verify settings
Confirm that voltage and frequency settings match your local grid requirements.
Monitor temperatures
Ensure the inverter is installed in a well-ventilated area away from direct sunlight.
Update firmware
Regularly check for and install manufacturer updates.
Inspect error codes
Consult the inverter manual to interpret error messages and follow recommended actions.
If these steps don't resolve the issue, consider replacing the inverter. Always consult a qualified solar technician for complex problems or replacements.
Installation Issues
Proper installation of solar panels is essential for optimal performance. Common issues include:
Incorrect orientation
Panels not facing the optimal direction for maximum sunlight exposure.
Improper angle
Panels installed at an angle that doesn't maximise solar absorption.
Shading
Obstructions cast shadows on panels, reducing efficiency.
How to fix solar panel installation issues
Adjust panel orientation
Ensure panels face south in the Northern Hemisphere and north in the Southern Hemisphere.
Optimise panel angle
Set the tilt angle to your latitude for year-round efficiency, or adjust seasonally for maximum output.
Address shading issues
Trim overhanging branches, relocate panels away from obstructions, or consider micro-inverters for partially shaded systems.
Consult a solar professional to assess and adjust your panel installation for optimal performance.
Roof Damage
Solar panel installation can potentially cause or exacerbate roof damage if not done correctly. Signs of roof damage include:
Water leaks
Visible water stains on ceilings or walls
Structural issues
Sagging roof sections or visible gaps in roofing materials
Cracked or broken tiles
Particularly in areas where panels are mounted
How to fix roof damage issues
Professional installation
Always use certified solar installers experienced in roof-mounted systems.
Regular inspections
Conduct bi-annual roof inspections to catch issues early.
Proper mounting techniques
Use appropriate mounting systems designed for your specific roof type.
Waterproofing
Ensure all roof penetrations are properly sealed and flashed.
Load distribution
Verify that your roof can support the additional weight of the solar system.
If you notice signs of roof damage, address them immediately to prevent further issues. Consider removing panels temporarily for comprehensive roof repairs if necessary.
PID Effect
Potential Induced Degradation (PID) is a phenomenon that can significantly reduce solar panel efficiency over time. PID occurs when voltage potential between the solar cells and other elements (like the frame or glass) causes electrons to leak, reducing power output.
Causes of PID
- High system voltage
- High humidity and temperature
- Certain types of glass or encapsulant materials
Signs of PID
- Gradual decrease in power output
- Uneven performance across panel strings
- Hot spots on panels visible through thermal imaging
How to fix PID issues
Use PID-resistant panels
Choose panels specifically designed to resist PID.
Ensure proper grounding
Implement effective grounding techniques to minimise voltage differentials.
Install anti-PID devices
These devices reverse the flow of electrons during non-productive hours.
Reduce system voltage
Consider redesigning the system to operate at lower voltages.
Regular monitoring of system performance can help detect PID early, allowing for timely intervention and mitigation.
Speak with Professional Heating Engineers in Norfolk and Norwich
For a free quote on our solar PV services, simply get in touch by calling us on 07824 393403 or 07939 979217.
