CPD Specifier May 2015 issue January 2014 | Page 27

Renewables Kingspan Solar Thermal Systems delivering spectacular savings for Cambridge swimming pool Abbey Pools in Cambridge, has been transformed into a model of energy efficiency. The complex, which includes two indoor swimming pools, is now heated by one of the highest performing solar thermal collectors in the world, generating up to 70 per cent of the complex’s hot water needs as well as reducing the energy bills and the overall carbon footprint of the establishment. Cambridge City Council wanted to reduce energy use and lower the carbon footprint of the city’s Abbey Pools, two indoor heated swimming pools, including one 25-metre pool and a smaller 15-metre learner pool. The designated installers, Suffolk-based Sustain Services, initially explored installing solar PV panels. However, after comparing the energy and financial savings that could be delivered by both types of panels, the decision was taken to switch to installing solar thermal. Kingspan Solar’s specification team designed a system using 40 Thermomax DF100-30 solar thermal vacuum tube collectors, covering 120 sqm of roof area, to supply solar heated water for both pools. Specifically designed and manufactured to operate in Northern European climates, Thermomax collectors use vacuum technology to deliver an unrivalled transfer of solar energy into heat. water to the swimming pools. Early results have showed enormous energy savings - surpassing the initial T*SOL predictions, which suggested annual savings of around 85,000kWh, equating to financial savings (including the RHI) of more than £8,000 (based on actual readings taken in July 2013). Although the hot summer of 2013 has undeniably boosted system’s performance. It wasn’t just the inherent efficiency of the system which appealed, but its relative ease of installation. The