The DGS Central Utility Plant, situated in downtown Sacramento, provides chilled water for cooling, steam for heating, and control air to 23 state-owned buildings in the Capitol Area. The utility plant serves over 500,000 m2 of state-owned office space in which approximately 20,000 employees work. The plant was constructed on the site of a less efficient central utility plant, which was built in 1968 and struggled to meet the increasing demands for heating and cooling.
Skanska USA designed and constructed the 7,200 m2 plant as part of a US$ 181 million design-build contract for the DGS that was completed in November 2010. The plant consisted of entirely new buildings and structures, which was more cost effective than retrofitting the old plant. The old plant was fully operational during construction and was demolished once the new plant was completed. The new plant includes a steam boiler plant with 4 gas-fired water tube boilers. The new chiller plant consists of variable speed electric chillers, cooling towers and a 38 m high 16,000 m3 Thermal Energy Storage (TES) tank, which stores chilled water for use during peak hours. A steam turbine generator was also installed to provide emergency power to the chillers in the event of a power failure or during peak load shaving scenarios. single dose diflucan
The project team surpassed the LEED (Leadership in Energy and Environmental Design) Gold contract requirement by building the plant to LEED Platinum certification, which is the highest level possible. The plant was built to LEED (Leadership in Energy and Environmental Design) Gold certificationLEED is a voluntary U.S. Green Building Council (USGBC) certification process intended to encourage and guide the construction of more sustainable and energy efficient buildings. The team incorporated and contains state-of-the-art equipment that haveto use less energy and water and ensure the plant met LEED Platinum. Tenhanced efficiency, reliability, and the heating and cooling capacity. The plant also no longer discharges warm water into the Sacramento River and complies with the Central Valley Regional Water Quality Control Board temperature criteria.