Why? Even if a company has a strong global profile, you want to be sure that they are committed to the domestic US market and local customers. The strength of the manufacturer’s dealer network of local installers in America. Why? Solar panels are as much a financial investment for most people as they are an environmental choice, so value for money is important. The price of the solar panels versus competitors. Why? If a company’s products fail to keep pace with industry leaders they will lose pricing power. The efficiency of the cell technology the company has, or is developing, and how this will position the company in the future.

Why? It is difficult for us to recommend a company that offers a 25-year warranty if we cannot see their financial position. The current profitability and net assets of the manufacturer - also our ability to get visibility on this. Why? Low cost manufacturers are more likely to survive and honour warranty claims. The scale and marginal cost of the company’s panel manufacturing. Good for you, and good for the company’s ongoing viability. Why? Less defects means less future warranty claims. Solar value chain (ingots -> wafers -> cells -> panels) in their manufacturing process. The manufacturing quality of the company’s factories, and the degree of integration across the We used six criteria, and we encourage you to use them when evaluating any solar panel brand. The editorial committee of solar industry experts here at SolarReviews came up with our own definition of a Tier 1 solar panel brand. How we define Tier 1 solar panel manufacturers

Timepassages vs solar fire side by side