photo courtesy of skanska modular RISING Factory-built data centers can save owners 30% to 40% on up-front capital costs because they are the right size for current demand and can grow in response to increased future demand. photo courtesy of integrated design group rows of racks Dense computer servers and related equipment generate heat that must be constantly ejected to avoid meltdowns. Related Links: EPA's Energy Star Program The Green Grid ASHRAE Uptime Institute Gartner Inc. Data centers in the U.S. gulp an estimated 388 billion liters of potable water every year. Experts say that's enough water to fill 155
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.