PADD Energy is working with a leading UK Design & Build contractor to deliver new air and water source heat pumps at two major Hospital campus sites in England.
The projects have received PSDS funding and will see heat pumps retrofitted into the existing heating and hot water systems to displace natural gas consumption and therefore reduce carbon emissions.
Both projects will achieve a carbon abatement cost of less than £500 CAPEX per tonne of CO2. Our team of highly skilled engineers have produced RIBA Stage 2 and 3 design packages, including energy modelling, site surveys, liaison with the supply chain and cost plans.
Through our work on this project and other similar schemes, we know there are key design factors that are critical to the success of the heat pump system and ongoing operation of the site. This includes:
- Modelling and designing the heat pumps on a realistic seasonal coefficient of performance (sCoP) across the heating season
- Overcoming the sites’ acoustic and planning challenges
- Understanding the interaction of temperatures between the existing building heating circuits and the new heat pump outputs
- Making cost effective interventions to existing circuits to maximise efficiency
- Maintaining suitable levels of overall heat supply resilience for the buildings
- Employing thermal storage to improve performance and reduce costs by operating the heat pump to align with periods of lower electricity tariffs
- Facilitating integration to cooling circuits to increase overall seasonal performance
