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This paper describes the challenges of delivering a new 730 000 population equivalent wastewater treatment works for Bradford, UK during the asset management period 4 regulatory period. The history of this 100-year-old site is described alongside details of the new infrastructure. Contract delivery mechanisms to use all the knowledge from a competitive tendering arrangement are discussed. The new site incorporates an innovative application of a hydro-turbine alongside digestion and combined heat and power engines. The paper describes the energy-saving measures incorporated into the wastewater treatment process providing quantification of generation for the flows and loads treated. The plant provides an average of over 21 MWh of electricity generation per day. Also the approach to designing a cost-effective 55 000 m2 composting area is detailed. Measures to convert existing humus tanks into final settlement tanks are described.