Renewable generation is expected to account for about two-thirds of the 24 GW of energy capacity the U.S. added in 2016, and industry observers don’t expect alternative-energy additions to fall in coming years, despite changed political winds.
Despite the Trump Administration's apparent focus on fossil fuel development, renewable energy is set to grow with standards in place in more than 29 states, including many with carve outs for offshore wind.
National Grid, which serves New York, Massachusetts and Rhode Island, is set to be the second U.S. natural-gas utility to use technology advanced by Google Earth, the Environmental Defense Fund (EDF) and Colorado State University to boost large-scale methane-leak detection.
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.