Specialist Installer of Solar Systems in Oxford and Surrounding Counties

Call us on: 01491 836065

or email enquiries@simssolar.co.uk

When it comes to registering solar thermal systems with Gemserv for the purposes of generating an installer certificate, it is necessary to provide an installed capacity in kWth. This figure is not calculated as part of the SAP calculation. Gemserv has provided this useful factsheet on how to calculate this capacity. In summary the total array aperture is multiplied by 0.7 to give kWth. The methodology is not panel specific.