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Journal: International Journal of Advanced Research in Engineering and Technology (IJARET) (Vol.9, No. 4)

Publication Date:

Authors : ; ;

Page : 333-342

Keywords : EE measures; Customer satisfaction survey; Public buildings; Energy savings; CO2 emission reductions.;

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The results of the several years' long research of impact of energy efficiency measures in the 70 selected public buildings were presented within two interactive areas among themselves, in the research of the impact on energy savings and reduction of CO2 emissions and the results of the consumers' satisfaction survey of these investments. After the completion of the implementation of energy efficiency measures in the selected public facilities significant energy savings have been achieved in the range of 15% to 63%, with an average energy saving of 38% for all surveyed public buildings. The annual reductions of CO2 emissions are achieved to the similar range between 15% and 64% with an expected average of 38%. The average annual specific energy consumption for space heating in public analyzed buildings compared to the before and after implementation phases of energy efficiency measures is showed substantial reductions. Significant energy consumption savings have been achieved for all 70 refurbished buildings, with annual savings of an average of 34.77% which amounts to 17,818,764 kWh/year over entire project. Differences in average annual specific CO2 emissions reduction follows the same pattern as energy consumption, which is 13709 t/a. The Equity Payback Period (EPP) for EE Measures is 5.5 years. For the part of the detailed study of the customer satisfaction assessment, the authors has selected batch of 5 characteristic buildings from the group of 17 public buildings with 165 respondents to identify and measure the level of end users satisfaction, the perception of indoor air and thermal comfort, the awareness on the EE measures, and the additional benefits of EE upgrades (eg. reductions of sick leave days, increasing productivity, increasing budget for other priorities, etc.).

Last modified: 2018-12-10 20:08:54