Today the power problem has become a major concern and the total economic growth of the country is in stake. At this point, PV solar panels play a significant role in providing a good solution to this issue. They are fantastic products that produce electrical energy with help of sun rays. These products are mounted on a frame and kept under direct sun light to produce electrical energy. The PV solar panel products are an interconnection of several solar panels and the electrons are excited in these panels under sunlight to produce electricity. This works under the phenomenon of electromagnetic discipline. As in every product, PV Quality is the prime concern of this product and before purchasing the product you should understand some quality issues and quality features, which may arise in PV solar panels.
The photons that convert into electricity are called ‘photovoltaic effect’ and it was first discovered by Henri Becquerel. Some of the issues which may affect the quality of solar panels during manufacturing are:
Scratches and Micro crack on the glass
Cell breakages and Off-spec module performance
Interrupted contact fingers
As per the photovoltaic market specifications, the quality is based on the “acceptance sampling rules” and it should be perfect both for shipment and customers. Both the producers and operators provide attention to photovoltaic system to maintain quality. The quality required for shipment of PV solar panels are based on the AQL or the Acceptable Quality Level i.e., the panel should maintain a largest fraction of “non-confirming modules”.
The panels with lesser fraction of modules are rejected during shipment. Since the quality control statistics gain importance today, researchers are more centered in increasing the lifetime of photovoltaic modules. This may be useful to provide cost-effective energy production.
As the time proceeds, the degradation of non-confirming modules occurs and leads to low energy yield. Hence, at the time of delivery, acceptable tolerance of PV solar panels is checked by PVStatLab and for PV quality requirements for the modules are determined. This will help the investors to decrease their error possibilities. Today governments in several countries are taking measurement to encourage the usage of PV solar panel products. The solar energy produced does not harm environment and sun is the largest resource of power and no carbon is liberated during any process. Moreover, a single PV solar panel can produce surplus electrical energy and people can enjoy the delight of very minimal charges on electricity bills.