Trigeneration for Manchester’s public buildings

As part of a refurbishment of the historic Manchester Town Hall Extension and Central Library, main contractor Laing O' Rourke worked with ENER-G, NG Bailey and BDP to design, develop and supply on-site combined heating, cooling and power systems to the buildings.

The two 230 kWe ENER-G trigeneration engines produce the majority of heat, cooling and electricity required by the buildings, located in the northwest of the UK.

To maximise output from the trigeneration system, thermal stores have been introduced into both the chilled and low temperature hot water systems to allow night-time charging. In addition, the cooling potential is being used to provide 24 hour chilling to the ICT communications rooms.  

The Town Hall CHP project is the first phase of the proposed Greater Manchester Heat Network programme, which will provide a low carbon district heating supply for four city centre clusters, including Manchester, Bury, Oldham and Stockport.

Alan Barlow, Managing Director of ENER-G Combined Power Ltd, said: ‘The units are operating at around 90% efficiency, helping to create cleaner and affordable energy for the city. This project demonstrates the suitability of CHP for retrofit projects.’

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