Can I Use Flexible Solar Panels in Arctic Conditions?

Assessing Temperature Tolerance

Flexible solar panels are made with thin-film photovoltaic (PV) technology, which allows them to be more flexible and lightweight than traditional rigid solar panels. However, this thin-film material has a lower temperature coefficient, meaning it can lose efficiency in extremely cold temperatures. For Arctic conditions, a flexible solar panel should have a temperature coefficient of around -0.5% per degree Celsius or better to maintain acceptable efficiency. For example, a panel with a temperature coefficient of -0.4% per degree Celsius would retain 97% of its efficiency at -20°C, compared to 85% at -40°C.

Protection Against Snow and Moisture

In Arctic conditions, snow can accumulate on the solar panel and reduce its efficiency. Flexible solar panels should be designed with a snow load in mind, and a minimum angle of 15° to 20° to prevent snow from accumulating and blocking sunlight. Additionally, the panel should be coated with a hydrophobic (water-repelling) layer to prevent moisture from seeping under the panel and reducing its efficiency. A snow load of 50-70 pounds per square foot (2.4-3.4 kN/m²) is a reasonable expectation for Arctic conditions.

Mounting and Installation

When installing flexible solar panels in Arctic conditions, it’s essential to choose a mounting system that can withstand extreme cold temperatures and wind loads. A stainless steel or aluminum mounting system with a minimum thickness of 1/8 inch (3 mm) is recommended. The installation should also ensure that the panel is oriented to maximize sunlight exposure and that any cables or wires are properly insulated against moisture and cold temperatures.