Energy cost saving and economic analysis at office building

The office building consume high energy demand. Office building consume electrical energy about 40% form total energy supply. This demand is expected will increase more then 50% by 2030. The demand of electrical energy is one of the main factors leading to the highest energy consumption. This resear...

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Bibliographic Details
Main Authors: Noranai, Zamri, Sobri, Nursuhaida Mohd, Ibrahim, Mohd Yassin
Format: Conference Proceeding
Language:English
Subjects:
Cost analysis
Economic analysis
Economic impact
Energy consumption
Energy costs
Energy economics
Energy management
Office buildings
Payback periods
Retrofitting
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Summary:The office building consume high energy demand. Office building consume electrical energy about 40% form total energy supply. This demand is expected will increase more then 50% by 2030. The demand of electrical energy is one of the main factors leading to the highest energy consumption. This research aims to investigate and analysis the energy economic cost of office building. Kedah Employees Provident Fund (EPF) building was selected as case study in this research. The economic cost of each intervention is estimated by averaging the demand for the same intervention by different measures. The payback period refers to the time required to recover the investment cost. In other word, the payback period is the length of time for the investment to reach the break-even point. The payback period does not consider the time value of money. It is determined by calculating the number of years required to recover the initial investment funds. The results obtained show that the economic cost of each intervention has improved energy cost. There are no the initial investment cost for temperature setting and energy management system. There for the payback period is zero and immediately initial investment return. Relamping measure takes 0.4 year to recover the initial investment. While for retrofit measure, the investment recovery period is 1.42 year. By installing occupancy sensor switch lights, the payback period of this measure is 1.69 year.
ISSN:0094-243X
1551-7616
DOI:10.1063/5.0121097