Samsung C&T, Korean Electric Power Corp. (KEPCO) and the province of Ontario announced on Jan. 21 a $6.6-billion deal—the largest of its kind, they claim—to build, own and operate facilities in the province to produce 500 MW of solar power and 2,000 MW of wind power by 2016. Samsung also will build four manufacturing plants for wind- and solar-energy parts by 2016 and oversee all facility and equipment engineering, construction, procurement and financing. KEPCO will design and connect facilities to the transmission and distribution systems and operate them. Ontario will help procure land. An Ontario Ministry of Energy and Infrastructure
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.