Mitsubishi’s PV Modules Withstand Salt Water Environment

With more and more solar projects being developed near the ocean, companies have been dealing with a growing concern about the effect that salt air and water might cause to the PV modules.

Mitsubishi Electric & Electronics USA says they might have an answer for this problem.

After costumers demanded information about whether the UD5 and UJ6 photovoltaic modules could be installed near water, the company decided to test its modules. Earlier this year, Mitsubishi published tests results proving that its UD5 and UJ6 photovoltaic modules could withstand an ocean front environment.

“Extensive testing was conducted in response to requests from customers to install our modules near the ocean. We were pleased with the findings, as this illustrates the durability of our modules and allows us to install our PV modules near sea ports and other salt water areas,” said Gina Heng, general manager for Mitsubishi Electric’s photovoltaic division.

According to a Mitsubishi, the company stated that its tests found that although the modules were showed weathering, the modules power output was not effected.

While there is nothing new or special from a technological about the modules, Mitsubishi said that one of the reasons why its modules are able to withstand the salt water environment is that its conjunction boxes are tripled layered. With multiple layers of protection and insulation, the electronics inside are better protected.

Mitsubishi’s new modules will also be coming out with conjunction boxes with four layers. According to Jenean Smith, Mitsubishi is the only company to make a PV module with that much protection.

Mitsubishi Electric used acceleration testing that simulated a more than 10-year long period in ocean front environments from both the U.S. and Japan. The company said its UD5 and UJ6 modules will be covered by a 25-year power output warranty as well.