Project Overview
GPJ were appointed to develop concept designs and cost estimates for the de-steaming of a large operational hospital. The existing site utilised central steam generation for heating and hot water, with ageing infrastructure and significant energy losses associated with the existing steam systems.
Our Involvement
GPJ undertook detailed site surveys and analysed historical energy consumption data to establish the site’s existing and peak heat demands. The existing steam boilers, distribution infrastructure, CHP plant, air handling systems and electrical infrastructure were reviewed as part of the study.
Two concept designs were developed for the replacement of the existing steam infrastructure: a centralised LPHW energy centre and a decentralised energy centre strategy. GPJ developed concept plant selections, distribution strategies, control philosophies, redundancy scenarios, project phasing and budget cost estimates for each option.
Key Project Considerations
The existing steam plant had a combined output of approximately 17.5 MW, while analysis of historical energy data indicated a significantly lower actual site heat demand. GPJ assessed how modern LPHW plant, CHP integration and improved heat recovery could reduce energy losses and provide a more appropriately sized heating strategy.
The concept designs were developed to allow the hospital to transition away from steam while maintaining heating and hot water services throughout the works. Future integration of heat pumps, solar PV and further energy-efficiency improvements was also considered, allowing the proposed infrastructure to support the site’s longer-term decarbonisation strategy.