University Hospitals Bristol and Weston NHS Foundation Trust

Energy Infrastructure Upgrade & District Heating Network

Executive Summary

Vital Energi were contracted to develop a complete refurbishment of the energy centre, and distribution network. The solution was designed to meet the hospital trust’s current needs but is also future-proofed so that we can add additional capacity for increased future demand.

  • reducing-carbon
    £250 Cost for each tonne of C02 reduction
  • chp
    81 Week programme
  • ve-lighting
    4 Additional buildings connected

Project Overview

University Hospitals Bristol and Weston NHS Foundation Trust (UHBW) have set an ambitious target to become carbon neutral by 2030.  As part of their work to achieve this they are revolutionising the way they generate heat and hot water.

The project saw us refurbish their energy centre, replacing the aging 1MWe CHP engine with a more modern and efficient 3.36MWe CHP engine and Combination Boiler. We also installed the district heating network which distributes the heating and hot water around the hospital’s campus.

Vital Solution

The energy scheme at Bristol Hospital saw us act as principal designer and contractor to create a “turnkey” design, build and commissioning solution.

Phase 1 of the project saw us replace the existing CHP engine with a new larger and more efficient engine in conjunction with a Combination Boiler. A heat network was installed to four satellite plantrooms, in which existing steam PHX’s were replaced with MTHW PHX’s and associated BEMS controls.

An additional standby diesel generator was installed to support the existing four generators and the generator controls system was upgraded to accommodate the additional engine.

To support the above works an extensive electrical infrastructure upgrade was carried out including the provision of new HV and electrical Switchgear, transformers and Sync Breaker, working closely with the Trust SAP’s to ensure electrical resilience was always maintained to critical departments within the Hospital.

Whilst the project was designed to meet the current needs of the hospital, we also future-proofed the system so that additional capacity can be added, and the network can be expanded. To do this we not only replaced old equipment with more modern technology, but we also improved the performance of existing equipment

Phase 2 will see the two remaining steam boilers replaced with MTHW boilers and the network extended to an additional ten satellite plantrooms, with a view to a complete de-steaming of the Hospital. Future expansion has been included within the design and installation to provide connections should Bristol City Council wish to install a proposed district heating network of their own.

The existing CSSD is currently supported by steam and as such the sterilisers and washers will be replaced or modified to electric models, which again involves a significant electrical upgrade.

University Hospitals Bristol and Weston NHS Foundation Trust

Bristol Hospitals Case Study University Hospitals Bristol and Weston NHS Foundation Trust 0.18 Mb
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