CARBON AND ENERGY REDUCTION
carbon emissions as far as possible, and minimising the potential for escalating energy costs.
Primary drivers The primary driver for adopting the use of ASHPs was the use of clean energy in the form of electric, which could be supported on site through the deployment of solar photovoltaic arrays across the entirety of the estate. Other influencing factors included reliability, and ease of maintenance when compared with other solutions such as biomass. Fulfilling the original brief, the team
also developed a pathway for the site to achieve Net Zero operational carbon by 2040. Before this could be developed, we first had to establish a baseline from which projected carbon emissions could be measured – achieved through the assessment of historic energy and carbon reporting data. The catalyst for the Net Zero carbon pathway was the proposed new energy centre and district heating network, which were predicted to achieve a carbon reduction of upwards of 40% over the baseline target. The team then explored all possible
interventions that could be considered to continue the decarbonisation of the site over the next 20 years. This includes demolition of building stock that is no longer fit for purpose, refurbishment of
Hannah Kissick
Hannah Kissick is as an associate at CPW, an international mechanical and electrical (M&E) and sustainability consultancy with over 300 staff based at 13 offices, where she runs the Innovations team. She has been with CPW for more than 10 years, with her most recent projects including the decarbonisation of estates such as the University of Oxford, West Midlands Police, and the University of Warwick. As part of her role, she researches how the company’s engineers can better incorporate sustainability into their designs, providing design advice on the circular economy, energy reduction, and Net Zero carbon buildings. CPW describes her as ‘a thought-leader in her field’, delivering training and research design sessions both internally and to industry professionals.
critical buildings to be retained, site-wide services upgrades such as LED lighting replacements, the introduction of energy recovery to air-handling plant, and, finally, large-scale deployment of renewable energy generators – such as solar photovoltaic arrays. In addition to these projects the
pathway considered the continued future decarbonisation of the electrical grid, meaning that the hospital would be fully equipped to hit both local and national decarbonisation targets. With the range of technology now
available to expose inefficiencies, a fabric first approach has true merit. Government funding is a great start to ensuring that
organisations are on board and able to meet their own sustainability targets. However, in our experience, that funding is often not even enough to cover the fabric improvements we recommend, let alone the full decarbonisation of an estate. Tight budget allocations and capital constraints are restricting the NHS from pushing forward with its decarbonisation efforts, so how can we expect the private sector to take the leap and drive down carbon without the incentive of government funding? Progress is being made, but more needs to be done to ensure that we are able to meet the UK’s Net Zero carbon targets. Otherwise, it will be a case of too little, too late.
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November 2023 Health Estate Journal 47
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