Chesterfield Royal Hospital, built in 1984, relied on an outdated gas-fired heating system that produced approximately 5,740 tonnes of CO₂ annually. As one of the highest energy-consuming public sector facilities, the hospital required a modern, low-carbon heating solution to reduce emissions, enhance energy security, and provide a comfortable environment for patients and staff. The challenge was to design and implement an effective heat decarbonisation plan without disrupting hospital operations.

C3 Group initiated a comprehensive review of the hospital’s existing heating infrastructure, conducting detailed site surveys and energy modelling to map heat demand and distribution. The team assessed the feasibility of various low-carbon technologies, including ground, air, and water-source heat pumps, while also evaluating improvements to the building fabric to reduce heat loss. The transition required an assessment of the electrical infrastructure, ensuring that it could support increased energy demand from an electrified heating system.

A phased transition plan was developed to implement a fully electrified, low-carbon heating solution while maintaining hospital functionality. Engineering designs for new heat generation and distribution systems were finalised, with a strong focus on reliability, compliance with NHS energy standards, and long-term cost savings. Funding opportunities, including the Public Sector Decarbonisation Scheme (PSDS), were explored to support the financial feasibility of the project

By executing the Heat Decarbonisation Plan, Chesterfield Royal Hospital is on track to significantly reduce its carbon footprint, moving towards a fully sustainable and resilient heating system. The hospital will benefit from improved energy efficiency, reduced reliance on gas markets, and enhanced patient and staff comfort.