Solar Panels Toowoomba

About the Manufacturer:

1. How long has the manufacturer been in existence and producing that particular product?
2. How financially stable is the manufacturer?
3. Do they have an Australian office to handle any potential future warranty issues?
4. What is the panel product/MANUFACTURER’s WARRANTY period? This is very different to, and much more important than, the output performance warranty.
5. What is the warranty claim/failure rate?
6. Is the factory automated? Panels produced in fully automated factories(robots) are typically higher quality and more reliable.

About the panel itself:

1. What is the physical size and wattage of the panel? With roof space becoming a valuable commodity, lower wattage panels are an inefficient use of space and can make upgrading or expanding the system in the future, difficult. As a rule of thumb, panels below 310W are old technology and do not meet our criteria.
2. What is the temperature coefficient of the panel? This is an indicator of how it performs in hot weather. The lower the percentage per degree Celsius, the better.
3. Type of solar cells contained in the panel. Most panels contain either P–Type (boron-doped silicon wafer) or N–Type (phosphorous doped silicon wafer) cells. N–Type cells are typically more efficient and are contained in the LG NeON panels and REC NPeak range.