The Solar Panel’s Efficiency Rating:
The efficiency rate of a solar panel indicates how effectively it converts sunlight into electricity. It is expressed as a percentage and typically ranges from 15% to 23%. Higher efficiency panels produce more electricity per square foot and are more suitable for homes with limited roof space or those seeking maximum energy output.
Solar Panel Wattage:
The wattage of a solar panel refers to its maximum power output under standard test conditions (STC). It indicates how much electricity the panel can generate at peak performance. Solar panels can come in a range of wattages, and higher wattage panels generate more electricity. Generally panels will range from 350-450 Watts. When selecting a solar panel, consider your household’s energy needs and available roof space to determine the optimal wattage.
The Panels Warranty:
Solar panel warranties are crucial for long-term reliability and peace of mind. There are typically two types of warranties:
Performance Warranty: Also known as output warranty and production guarantee. This guarantees the panel’s efficiency over time, ensuring that it maintains a certain percentage of its initial power output after a specific number of years (e.g., 80% after 25 years). A robust performance warranty ensures that your panels will continue to produce a significant amount of electricity throughout their lifespan.
Remember that the best solar panel choice for your home depends on your specific requirements, available budget, and roof space. With that in mind, let’s look at the solar panel manufacturers.