REC solar panels

Don’t just look at cost-per-watt for high-performing modules

The common factor in evaluating solar module is the cost per watt. But with the advancement in solar technology, there are other factors that affect the performance and Return on Investment of a PV Solar solution.


The amount of energy you can extract from a given area is the direct measure of the module’s efficiency. There are lots of ways to raise the electrical power of a module, consisting of enhancing its physical size. However, the only means to improve module performance is through R&D investments at the cell and material level.
If the roof room is minimal and is an obstacle to meet the increasing power need of homeowners, efficiency plays a crucial role in making the best use of available roof space. Higher efficiency panels supply even more kilowatt-hours to the client with a better ROI.

An added advantage to installers: utilizing modules with higher performance and efficiency can lead to fewer modules needed overall, minimizing labour costs.

Temperature coefficient

The nameplate power score of a PV component is taken at 77 ° F, as well as power begins to decrease as cell temperatures rise above 77 ° F. The quantity of energy lost over 77 ° F is directly associated with a component’s temperature coefficient.
The lower the temperature coefficient, the much better that module will undoubtedly carry out as temperatures increase. The lower temperature coefficient is necessary for all areas, not merely warm environments. When the sunlight is shining, rooftop temperature levels can quickly go beyond 77 ° F even with ambient temperatures below 50 ° F.
You can compare the temperature coefficient of different panels by their respective information sheets. To ultimately realize the additional kilowatt-hours (as well as more significant ROI) achieved from a far better temperature coefficient, advanced software systems should be used for in-depth evaluation.


Simply because a firm provides a 25-year warranty does not guarantee it will be around to honor it. For a minimal 25-year investment, installers, as well as homeowners, must pick a maker that is financially healthy, stable and also brings a historical track record for item high quality and even customer service.