Seite - (000194) - in Evaluating Climate Change Action for Sustainable Development

PE¼Project emissions for thePSH(tCO2e/year) LE¼Leakage (tCO2e/year) Thebaseline andproject emissions are calculated as follows: Ey¼FCy fNRB,y EFfuel,CO2 þEFfuel,nonCO2 NCVfuel Where: E¼Emissions for baseline/project situation in tCO2e FC¼Quantity of fuel consumed for baseline/project situation in tonne fNRB¼Fraction of non-renewable biomass NCVfuel¼Net calorificvalueof the fuel that is substitutedor reduced EFfuel,CO2¼CO2emission factor of the fuel that is substituted or reduced EFfuel,nonCO2¼Non-CO2emission factor of the fuel that is substitutedor reduced Then, theGHGavoidedemissionarecalculatedusing thesuppresseddemandto assess for the impact of a higher comfort in PSH. This requires to build amodel linking the non PSH indoor temperature to the level of greenhouse gas emissions and the outdoorHDD18. To account for the different emission factors of the different used, anOrdinary Least Square regression is developed to link the GHG emission to the indoor temperature for the same outdoor temperature. This model is finally used to estimate the extra GHG emission that would have occurred in non PSH to reach the same indoor temperature level than the PSH as well as to reach the WHO recommendedminimum indoor temperature of 18 C. 10.3 Results 10.3.1 EnergyEfficiency 10.3.1.1 HeatingDegreesDayRequired toBeat 18 C(Outside Temperature) In order to compare the average indoor temperature or energy consumption between PSH and non PSH it is necessary to validate that the test conditions are similar, i.e. that there isnosignificantdifferenceof thecumulativeHeatingDegree Day necessary to obtain aweekly indoor temperature of 18 Cbetween PSHand nonPSH(Table 10.1). Student’s t-test shows that there isnosignificantdifferencebetween theHeating DegreeDay required tobeat 18 CforPSHandnonPSHwhich indicates that the energyrequirement to reach theminimumlevelof serviceare thesamefor thePSH andnonPSHgroups. 178 Y.Franc¸ois andM.Gavald~ao