Indicators of Solar Panel Performance

How to Determine If Your Solar Panels Are Working

Decrease in Energy Bills: A noticeable reduction in your energy bills is a clear indicator that your solar panels are functioning properly. As they convert sunlight into electricity, you’ll rely less on the conventional power grid, resulting in lower monthly bills.

Track Solar Production: To ensure your solar panels are working as they should, it’s crucial to track your solar production. Many solar systems come with monitoring tools that offer real-time data on energy generation. Regularly reviewing this data can help ensure optimal performance.

Use Monitoring Tools and Apps: Monitoring tools and apps can simplify the assessment of your solar panel system’s performance. These tools provide detailed information about solar production, energy usage, and alerts for potential issues. Utilizing them can help you stay informed and address any problems promptly, ensuring continued functionality.

Common Issues Affecting Solar Panel Performance

Shading and Obstructions: Shadows from nearby trees, buildings, or other objects can reduce a panel’s ability to generate electricity. Regularly check for new construction or growth that may block sunlight from reaching your panels.

Inverter Malfunction: The inverter converts the DC produced by the panels into usable AC for your home. If it’s not functioning correctly, it can significantly impact the system’s efficiency.

Panel Degradation: As panels age, they may lose efficiency due to wear and tear, environmental factors, and exposure to the elements. Monitor panel performance regularly and consider maintenance or replacement if electricity production decreases.

Steps to Assess Solar Panel Efficiency

Check Energy Meter Readings: Regularly monitor your energy meter readings to track the electricity your panels generate. Compare generation on sunny and cloudy days to spot discrepancies.

Review Historical Solar Production Data: Access historical data on your panel’s electricity production to identify patterns, trends, and irregularities.

Compare Actual vs. Expected Output: Determine the expected output based on sunlight availability and panel capacity. Compare this with the actual output to assess performance.

Frequently Asked Questions on Solar Panel Performance

How Do Solar Panels Work? Solar panels convert sunlight into electricity using photovoltaic cells made of semiconductor materials that generate electric current when exposed to sunlight.

How Can I Tell If My Solar Panels Are Working? You can check your electricity meter, inverter, and monitor your energy bills to assess the performance of your solar panels.

How Often Should I Clean My Solar Panels? Cleaning them at least twice a year is recommended, but the frequency may vary depending on location and the accumulation of dirt and debris. Regular cleaning maintains performance and prolongs the panels’ lifespan.


Monitoring your solar panel performance is crucial to ensure their efficiency and effectiveness. By regularly checking for specific indicators like energy production, panel angle, and conducting visual inspections, you can determine if your solar panels are working optimally. Taking proactive steps to address issues or seek professional assistance will help maximize your solar investment and contribute to a sustainable future.

Scroll to Top

Get a Qoute