UNE-EN 15316-4-3:2018

The standard (prEN 15316-4-3) specifies the: ¾ðrequired inputs;¾ðcalculation method;¾ðrequired and resulting outputs,for heat generation systems, thermal solar systems ( for space heating, domestic hot water production and the combination of both) and for photovoltaic systems applied in buildings.Within this standard 6 methods are specified each method has its own range of applicability.¾ðMethod 1,is applicable for solar domestic hot water systems characterized by EN 12976 (factory made) or EN 12977 2 (custom built).The main output of the method is the solar heat and back up heat contribution to the requested heat use.¾ðMethod 2,is applicable for systems for domestic hot water and / or space heating with components characterized by EN 12975-2 and EN12977-3 or EN12977-4 with a monthly calculation time step. The main output of the method is the solar heat and back up heat contribution to the requested heat use.¾ðMethod 3,is applicable for systems for domestic hot water and / or space heating with components characterized by EN 12975-2 with an hourly calculation time step.The main output of the method is collector loop heat supplied to the heat storage. ¾ðMethod 4,is applicable for photovoltaic systems with components characterized by standards and with an annual calculation time step.The output of the method is the produced electricity.¾ðMethod 5,is applicable for photovoltaic systems with components characterized by standards and with a monthly calculation time step.The output of the method is the produced electricity.¾ðMethod 6,is applicable for photovoltaic systems with components characterized by standards and with a calculation time step.The output of the method is the produced electricity.These three last calculation methods do not take into account: ¾ðelectrical storage;¾ðPV/thermal photovoltaic systems. Primary energy savings and CO2 savings, which can be achieved by photovoltaic systems compared to other systems, are calculated according to prEN 15603. NOTEStandards linked to the methods are listed in Annex C.