1. EU-Directive 2002/91/EC of the European Parliament and of the council of 16 December 2002 on the energy performance of buildings. European Commission.
2. CEN M 343 – EN –2004. Mandate to CEN, CENELEC and ETSI for the elaboration and adoption of standards for a methodology calculating the integrated energy performance of buildings and estimating the environmental impact, in accordance with the terms set forth in Directive 2002/91/EC.
3. EN13790-2007. Thermal performance of buildings – calculation of energy use for space heating and cooling.
4. EN15232-2007. Calculation methods for energy efficiency improvements by the application of integrated building automation system.
5. EN15316-1-2007. Heating systems in buildings – method for calculation of system energy requirements and system efficiencies – Part 1: general.