When the decided on Wednesday to uphold tariffs of about 24 to 36 percent on most solar panels imported from China, the case’s proponents claimed a major victory. Domestic solar manufacturers said the duties, to be in place for five years, would make up for unfair business practices by Chinese companies that had harmed the domestic market and allow homegrown companies to hire more workers and thrive.
But whether the duties can help save the American solar industry is a matter of some dispute. Because they apply to panels made of Chinese-produced solar cells, Chinese companies are already avoiding the duties by assembling their panels from cells produced elsewhere, like Taiwan, even if the cell components come from China.
The case is also unlikely to have much effect on the central market dynamic that analysts say is driving companies out of business: oversupply.