Building energy performance assessment through simplified models: application of the ISO 13790 quasi-steady state method

“Energy performance of buildings” estensive international research activities have been carried out on the elaboration and adoption of standards containing common methodologies for building energy performance assessment. One important item concerns the definition of a simplified method for the calculation of energy use for space heating and cooling (ISO/FDIS 13790). A simplified quasi-steady state calculation method is presented in this standard.