Page - (000195) - in Evaluating Climate Change Action for Sustainable Development

10.3.1.2 EnergySavings For the two groups, firewoodwas themain fuel consumed, representing approxi- mately the two-thirds of the energy consumption for heating purpose. The remaining energy consumed was a mix of coal, sawdust, cow dung, husk and cardboard. This fuel mix is representative of the energy consumption patterns of Kabul according to theSEADEP results (Fig. 10.2). The results of the analysis of the energy consumption of themonitored room over the8weeksmonitoringperiod are presented in theTable 10.2. ThePSHenergyconsumptionwas23%lower thannon-PSHhouses,withanet energy consumption decrease of 60 kWhperweek in average (Fig. 10.3). Extrap- olated to1year considering110heatingdays that represents a savingof 938kWh per year for eachhouse equippedwithPSH. 10.3.1.3 IndoorTemperature The analysis of the temperature recorded in themain heated room, attached to the veranda for the PSH, during the monitoring period shows the following results (Table 10.3). Over themonitoringperiod, thePSHreachedanaverageweekly indoor temper- ature of 18.22 C. The PSH average temperature is 8% higher than non-PSH houses,with a net increase of 1.43 Cof theweekly indoor average temperature. Thevariationof thePSHindoortemperaturewasalsomuchlowerthanthenonPSH (Fig. 10.4). This difference show that, in addition of reducing fuel consumption, the PSH group reached theWHOrecommendedminimum indoor temperature of 18 C. Table 10.1 HeatingDegreesDay forPSHandnonPSH Non-PSH PSH Mean ( C) 109.69 C 109.19 C Standarddeviation 15.36 14.95 Coefficient of variation 0.14 0.14 Standard error 2.13 2.53 Uncertainty of themean (90%confidence interval) 0.03 0.04 Conclusion Thelevelofprecision( 10%)fora90% confidence interval ismet 10 IntegratingAvoidedEmissions inClimateChangeEvaluationPolicies for. . . 179