Facade helps college meet green targets
Increasingly strict targets for carbon emissions and the introduction of the government’s new Feed-in Tariff will change the design of buildings in the UK. Leicester’s new Gateway College, designed by Nightingale Associates, indicates what we may see in the future.
It features various green technologies, notably a large facade enabled by BIPV (building-integrated photovoltaics). Set above the main entrance, this comprises 79m² of Schüco polycrystalline PV panels set into a Schüco FW60+ curtain walling. Each 38mm PV unit comprises a 16mm outer leaf, made up of 8mm clear HST (thermally toughened) glass, a 2mm layer of PV cells and a further 6mm of clear HST glass.
Besides generating energy, the dense arrangement of Schüco PV modules, in combination with solar-control glazing, helps to limit solar gain. A Schüco brise soleil system does the same on the south facade.
During holidays, surplus power is exported to the National Grid to minimise the college’s energy costs. The college has an energy performance score of 28 (a typical building of this size would score 46) and annual CO2 emissions of 17.3kg/m². The Schüco BIPV installation is expected to provide a financial return of 7-8 per cent.