Related Links: Fact sheet from the International Trade Administration The preliminary decision by the U.S. Commerce Dept. to impose tariffs of 30% or more on imports of solar cells and panels from China could have a chilling effect on the industry, various sources say. “It will put a drag on the industry as a whole,” says Robert Healy, manager of Kansas City, Mo.-based Burns & McDonnell’s renewable-energy group. The Commerce Dept. announced on May 17 that it would impose tariffs of 30% or more on crystalline-silicon photovoltaic cells and panels from China after concluding that China had “dumped” the materials
Arch dams, classically curved monoliths situated in narrow valleys, are not as common as other types of dams, such as embankment dams and gravity dams. ENR takes a look at some of the biggest arch dams in the world, both completed and under construction.