Royal Preston Hospital

CUSTOMER: LANCASHIRE TEACHING HOSPITALS NHS TRUST

PROJECT DETAILS: ROYAL PRESTON HOSPITAL HP & STAND-BY GENERATION

NIFES SERVICES:ENERGY APPRAISAL, DESIGN &CONTRACT MANAGEMENT

BACKGROUND

Facing a shortage of power, escalating running costs, and government demands for reduced
emissions, The Trust turned to NIFES for a solution.

OUR APPROACH

Having carried out a full energy appraisal to establish the electrical base load, a gas-fired CHP was selected, comprising:

  • 1.8 MWe gas-fired Jenbacher engine, continuously generating electricity
  • HV/LV ring main alterations to accept the new power supply
  • Waste-heat boiler generating steam from engine exhaust gasses
  • Cooling jacket heat piped to the plantrooms for heating and hot water

Particularly challenging was the assessment of over-pressure risks in the CHP exhaust system in light of changing NFPA68 guidance published after the contract was let. The capital value of the CHP was £2.3m

In a separate contract, the hospital’s ageing stand-by generators were replaced with two 1,250kVA oil-fired engines in purpose-built acoustic enclosures. The capital cost was £1m.

RESULTS

The Trust’s aspirations were all met with significant carbon emission reductions and running cost savings that amounted to almost £2,000 every day!

Project value £3.3m
Daily savings of £2,000