摘要(英) |
Energy saving and carbon reduction are a mission of the generation nowadays and a responsibility of human beings. This study evaluated the benefit of power reduction via lighting improvement for a junior high school, and the results reveal 66.07% power saving which equals the saving of NTD 709,216 electricity bill and reduction of 108.5 tons CO2e emission per year after the implementation. Power saving is achieved via choo-sing energy-efficient LED lighting and modification of the wiring path. Specifically, the current lamps are replaced with suitable 1.2m ,14W, T8/T5 LED lamps and 0.6m, 7W T8 LED lamps. Prior to this eco-project, the school faced the shortage of funding for energy-efficient lighting replacement program. In order to overcome the budget shortage challenges, they collaborated with Energy /Engineering Service Company (ESCO), working together under a project called Energy Saving Performance Contracts (ESPC). ESPC lasts 7 years; however, its return on investment (ROI) is 4.37 years according to the data collected. The verification of Energy Savings Performance for the study is via the option A of International Performance Measurement and Verification Protocol (IPMVP) in which the saving is measured by the key performance of critical parameters, and the lighting is 1,600 hours per year. We installed digital electricity meters in three classes, and monitored daily power consumption for a year in order to verify whether the 1,600 hours criteria of a year is rational. The results indicated that the power consumption is over 1,600 hours in two of the three classes and the other one is 1,320 hours. Although the power consumptions of two classes are over 1,600 hours in a year, the rational criteria of power consumption should be evaluated for the following cases due to the trend of power saving and carbon reduction. Next, we replaced the lighting with 1.2m, 10W T8 and 0.6m, 5W T8 energy-efficient LED lamps, and kept track whether the overall saving achieved over 75%. The results revealed that the total energy saving of three classes is 70% instead of 75% target, since the proportion of T5 LED lighting is higher (58%) than T8 LED lighting (42%). The overall energy saving is highly related to the proportion between T5 and T8 LED which should be listed as an evaluation item before leading an energy saving project. |
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