Starting next month, California’s state capital campus, a complex of 23 buildings encompassing 5.5 million sq ft, will be cooled by water chilled in a 4.25-million-gal thermal-energy storage tank. The 140-ft-tall metal cone is the final phase of a $181-million central-plant replacement on course to receive the second-highest ranking—LEED Gold—of the U.S. Green Building Council’s Leadership in Energy and Environmental Design green-building rating system. Photo: Todd Quam Digital Sky Aerial Imaging Payback period is three to four years for the energy-efficient systems in the state capital’s $181-million district heating and cooling plant. The 78,000-sq-ft California central plant is the largest
The 2016 Summer Olympics boating and swimming events have put an international spotlight on what has been a long-running problem in Rio de Janeiro—untreated sewage and trash are clogging up major bays and waterways.