How can I check if the components offered to me are of the best quality?

There are different quality levels of solar PV modules available in the market for example Tier 1, Tier 2 or Grade A, B, C. Specialized inspection tools are needed to identify poor quality solar PV modules that are available at much cheaper rates. We only offer Tier 1 products and complete inspection reports by Accredited International Bodies i.e. TUV Rheinland, DAkkS, CNAS, PNAC, SGS.