SHEFFIELD ENERGY FROM WASTE (EfW) PLANT VALUE: £1.5 million contract of a £65 million scheme value CLIENT: CNIM Environmental, Clugstons LOCATION: Sheffield, UK PROBLEM: To build an EfW in a heavily populated area of Sheffield. The Plant must be aesthetically pleasing while not compromising on function. CHALLENGES: A very restricted site, situated within a built up city area, with housing surrounding it. DESCRIPTION & KEY FEATURES SOLUTION: Awarded ICE 2006 winner for Complete turnkey construction of a new Energy-from-Waste Design Excellence. Facility in Sheffield, South Yorkshire. The proposed new plant will incinerate around 28 tonnes per hour of municipal AWARDED: Summer 2001 waste, and generate 20 MW of electrical power for internal consumption and export to grid, as well as providing thermal START DATE: July 2003 energy for the associated district heating system. Onyx tendered for and were awarded the 30 year waste contract, COMPLETION DATE: April 2006 and ETEL have an exclusive arrangement via CNIM to provide civil and building design and construction PROJECT STATUS: Complete management services on the new EfW plant. Earth Tech recently carried out civil and structural design services to Onyx/CNIM during the tender for the 30-year waste management concession. Onyx were awarded the waste management contract in summer 2001, and the construction of the new EfW facility began 2002. Completion of the plant was achieved in summer 2006. Earth Tech’s scope consists of the design and construction management of all civil/structural works associated with the new EfW plant, including the following:- • Geotechnical study and interpretation of available data. Design of foundations and earthworks. • All structural design including approach ramps, tipping apron, bunker hall, incinerator building, turbine hall, electrical rooms and sub-station, plant rooms, etc. New office accommodation. • Design of all external works including plant foundations, roadworks, drainage and other utilities, water treatment plant, weighbridges, chimney etc. • Management of all civil / process interfaces, including integrated programme for construction in order to ensure continued operation of the existing facility throughout the construction of the new plant.