Hanging like a thick fog over the proceedings of the annual Solar Power International (SPI) conference in Las Vegas, an ongoing trade case cast uncertainty on the industry. The case, which pits two solar manufacturers against just about everybody else in the industry, was the focus of several panels and nearly all side conversation at the conference, which ran September 11–13.

The petitioners, Suniva and SolarWorld, argue that imports of foreign made solar modules have made it impossible for them to compete in the industry. They ask that the International Trade Commission (ITC) recommend significant tariffs on all foreign made modules.

However, the Solar Energy Industries Association (SEIA) and representatives from several major solar companies argue that the tariffs would cripple the U.S. solar industry. Opponents of the tariffs go so far as to allege that the problems Suniva and SolarWorld have had in the industry are wholly due to their own business practices.

“This is a case about companies that are saying they can’t compete.…

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