ANNEX IISupplementary provisions
ANNEX II FORMULAS FOR TOTALS AND AVERAGES 1. Total (cumulative) values for primary and final energy consumption, total operational GHG emissions and total on-site renewable energy production from energy performance certificates and total estimated operational GHG emission reduction and total estimated energy savings from building renovation passports will be calculated as a simple sum of the corresponding values shown on the energy performance certificates issued in the reported year and in accordance with the following formula: (1) where: Etot = total primary or final energy consumption or total operational GHG emission or total on-site renewable energy production or total estimated operational GHG emission reduction or total estimated energy savings (in MWh/yr or tCO 2 eq/yr). Ei = primary or final energy consumption or operational GHG emission or on-site renewable energy production or operational GHG emission reduction of the “i” building or building unit (in MWh/yr or tCO 2 eq/yr). 2. Averages of annual primary and final energy use, average energy needs, average operational GHG emissions and average life-cycle GWP from energy performance certificates and average energy performances and average estimated operational GHG emission reduction from building renovation passports comprising this information will be calculated in accordance with the following formula: (2) where: Eavg = average primary or final energy use or average energy performance or average operational GHG emissions or average life-cycle GWP or average estimated operational GHG emission reduction , in kWh/yr or kWh/(m 2 .yr) or kgCO 2 eq/(m 2 .yr). Ei = primary or final energy use or energy performance or operational GHG emissions or life-cycle GWP or estimated operational GHG emission reduction , of the “i” building or building unit in kWh/yr or kWh/(m 2 .yr) or kgCO 2 eq/yr. N = total number of buildings or building units Ai = useful/reference floor area of the “i” building or building unit, in m 2 . Atot = sum of useful/reference floor area of buildings or building units, in m 2 . 3. The average scores for smart readiness indicator, total and per key functionality, and the average estimated energy savings, average estimated energy bills savings and average estimated investment from building renovation passports comprising this information will be calculated in accordance with the following formula: (3) where: Vavg = average smart readiness indicator score or average estimated energy savings or average estimated energy bills savings or average estimated investment. Vi = the average smart readiness indicator score or estimated energy savings, estimated energy bills savings or estimated investment for “i” building or building unit from smart readiness indicator or building renovation passport in [-] or [%] or [EUR/building or building unit/yr] or [thou. EUR/m 2 ]. N = total number of SRI certificates or number of building renovation passports comprising this information.