The objective of this workshop was to discuss and identify ways to better secure the compliance of renewable heating and cooling product data, as well as the quality of installed systems, thereby increasing the confidence in declared values on the Energy Performance Certificate (EPC) and achieving the expected energy performance.

Three aspects were specifically addressed:

• how to provide compliant input data used to issue an Energy Performance Certificate;
• how to improve the quality of the installation works;
• how to enforce compliance, and how to define/apply penalties in case of non-compliance.

In the context of the revision of the Energy Performance of Buildings Directive (EPBD), the workshop discussions were based on detailed presentations of schemes that were operational or under development. Interaction between participants allowed exchanges of ideas and experience. The programme included a visit of CETIAT laboratories (testing of renewable heating and cooling systems, practical training for installers and maintenance staff).