Carbon and energy reduction
Type of contract. Feasibility and business case. Detailed design. Installation. Maintenance.
Dr Stone said: “We believe in adopting a collaborative approach right from the start, so that our clients end up with a project that fits into their overall estates and facilities strategy and maximises their savings.”
Let us now look at some Trusts’ recent ‘real-world’ experience of carbon and energy reduction projects which have harnessed the benefits of CHP.
Maidstone and Tunbridge Wells Hospitals, Kent Maidstone and Tunbridge Wells NHS Trust has already been through the tender selection process, and is now ready to present its proposals to the hospital board. A large acute Trust in Kent, the organisation covers a huge area, and provides a full range of general hospital services, as well as more complex care, to people living in the south of West Kent and the north of East Sussex. The Trust’s core catchment areas are Maidstone and Tunbridge Wells and their surrounding boroughs, which are served by two sites – Maidstone Hospital in Barming and the newer Tunbridge Wells Hospital at Pembury, the latter a PFI hospital. Originally built on a greenfield site in 1983, Maidstone Hospital has undergone substantial changes in the past 30 years. It has had extra wings added, as well as a self-contained orthopaedic unit built, a new Eye, Ear and Mouth unit in 2003, a new Cellular Pathology Centre, a stroke unit, a refurbished intensive care unit, a surgical training centre, and a new birth centre.
The 800 kW CHP system at the North Devon District Hospital (NDDH) in Barnstaple. Notable firsts
Maidstone Hospital’s Oncology Centre provides specialist cancer services for the whole of Kent, and also for Hastings and Rother in East Sussex. The hospital also has an Emergency Care Centre, and was one of the first hospitals of its kind in the country to offer full A&E alongside a GP out-of-hours service and walk-in centre under one roof.
The hospital has grown considerably, and for environmental, as well as cost- saving reasons, Jeanette Rooke, director of Estates and Facilities, and her team have looked at ways of reducing its carbon footprint and improving its energy efficiency. The Trust’s Carbon Management Programme (CMP) has already reduced emissions by three million kg /m2
during 2012/13 – a 13%
reduction, with savings attributable to improvements to thermal insulation, heating and air-conditioning controls, the replacement of traditional hot water calorifiers with plate heat exchangers, energy management software to improve the monitoring and targeting of energy, and the installation of energy-saving valves and boiler monitoring in the laundry.
Installation of 250 kW of solar panels on the roof of the NDDH in progress.
56 Health Estate Journal September 2016
Plans for further efficiencies The hospital, however, had plans to make further efficiencies, after it saw a 2.4% increase in its energy spend – to £3,849,104 – between 2014 and 2015. The Estates Department identified a number of areas where the introduction of new technologies could result in further savings. “Hospital estates are leading the way and making a significant contribution to the government’s commitment to a lower carbon economy,” Jeanette Rooke said. “We are looking at the energy savings process as a long-term approach to controlling our energy costs. We looked at technologies that would not only provide
us with energy savings, but would equally improve resilience levels and reduce our maintenance costs, while delivering an improved environment and patient experience.”
The Estates Department decided early on on the type of projects it planned to undertake. These included the installation of a 200 kW CHP system, lighting replacement, Building Management System (BMS) upgrades, variable speed drives, and steam system upgrades, at Maidstone, and a new 800 kW CHP system at the Pembury site. Using the standard ‘5 Case Model’, staff worked through the core components: Strategic case. Economic case. Commercial case. Financial case. Management case.
The total cost for the projects is in the region of £4.5 - £5 million, with energy savings expected to be £600,000-£800,000 per annum.
Easy access to EPC suppliers The Trust elected to work with Essentia, which was able to provide it with easy access to EPC suppliers and go to market quite quickly. Jeanette Rooke says she sees three key benefits in working with an EPC: Guaranteed savings Technologies. Access to technical, commercial, and financial specialists.
She explained: “Essentia helped us to focus on EPC suppliers, and Cynergin’s technical expertise shone through. The company understood exactly what we were aiming to achieve, and its proposals were focused on how we could maximise our savings. Cynergin guaranteed the savings we could achieve, offered appropriate technologies
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