We are picky when it comes to who’s modules we use. After three decades of working with a good number of manufacturers we developed two main criteria which dominate our selection process. Number one is a company which has staying power. We have seen too many companies come and go, leaving us with a long-term warranty with no one to support the product. A 25-year module warranty is standard in the industry. You cannot operate as a module manufacture without it, whether or not the company will be there. Bankruptcy clears long term commitments unless the company takes actions to cover their warranties.
Number two qualification is a track record of standing behind their product and the companies brand. The two companies we work with are just plain proud of their product. It helps when you talk to workers on the factory Floor who when queried tell me this is the best job they have ever had and you can feel this is more than just a job.
This is why we work with SolarWorld of Hillsboro, Oregon and L.G. from South Korea. Both companies have been around the solar block, have a high-quality product which they are committed to support for the long run.
What module wattage is best and why we work with high power 355 watt or higher modules.
It’s simple really, the more power per module the less space it requires on your roof or mount structure. Lower wattages, especially below 295 watts, cost less yet this cost savings is lost as we need to install more modules to achieve the same total array output. More individual modules increase the number of mounting structure material, optimizers and installation time and costs.
Companies leading the industry put much energy into maximizing cell efficiencies. There are hundreds of solar module manufactures around the world. Like many products today, it is a buyer beware world.