What are the different grades of solar panels?

Solar panels are categorised into grades ranging from A to D, with the A-grade bracket further divided into A+ and A-. Understanding the grade of a solar PV panel is crucial in determining its quality and performance. In this article, we will provide an overview of the various solar panel grades and how to assess them.

What is the grading system for solar panels?

The grading system goes A for the best, B for visually defective panels but meet performance benchmarks, C for visually and performatively defective solar panels, and D for broken solar panels. Most manufacturers and distributors only sell grade A and B solar panels, scrapping C solar panels and recycling D solar panels.

What does grade a mean on a solar panel?

Grade – A normally means a panel has no visible defects and all the major possible defects are covered by manufacturer’s standard warrantyl. Grade – B usually means the panel has some “cosmetic imperfections” or “cosmetic blemishes” of the above, but has the “same” electrical output as Grade – A.

What is a Grade A solar cell?

1. Grade A solar cells Grade A cells are simply without any visible defects, and the electrical data are in spec. The specifications of the cells can be measured with cell testing equipment. The perfect grade A cell may still have a slight bend of tiny color deviation is permitted. Below a grade A solar cell.

Are Grade A solar panels a good choice?

Conversely, lower-grade panels, such as Grade B, C, or D, may experience reduced efficiency and a shorter lifespan due to material flaws or structural weaknesses. Investing in Grade A solar panels can lead to higher energy yields, longer-term savings, and reduced maintenance costs, making them a prudent choice for most solar installations.

What is a Grade B solar panel?

Grade B solar panels have visual defects but meet performance specifications. These solar panels are less common than grade A solar panels but are typically available from manufacturers upon request. Most manufacturers keep these panels for testing purposes but sell them with warranties like grade A solar panels.