我國辦公大樓能源大用戶能源效率指標研析

依據非生產性質查核年報顯示，民國108年辦公大樓大用戶占國內整體非生產性質大用戶電力使用量約8.3%，若能有效估計辦公大樓之能源使用效率並促使用戶進行改善，可降低能源成本及提升辦公大樓用戶整體能源使用效率。本研究利用建築特徵因子、氣候因子、營運規模等變數，以複迴歸模型建立辦公大樓之能源效率指標評估模型；研究結果顯示，若用戶皆朝估計電能EUI值進行改善，總體節電空間約1.61億度。若依照用戶EUI實際值與EUI估計值差異大小給予不同節電目標，以108年為例，EUI實際值超過估計值20%的用戶約39家，若給予2%的節電目標，約可節約3.11百萬度，若實際EUI值超過合理EUI值10%至20%的17家用戶1%節電目標，則有0.15百萬度之節電量，實際EUI值超過合理EUI值0至10%的32家用戶則給予0.5%節電目標，有0.05百萬度的節電量，以上三種情境下，共可節約3.31百萬度。

關鍵字

辦公大樓；能源效率指標

並列摘要

According to the Energy Audit Annual Report for Non-Productive Industries 2020, office buildings was the major energy consumer among industries with contract capacity over 800 kW, it consumed approximately 8.3% of the electricity use within the whole industry in 2019. To improve energy management for buildings owners, it is important to estimate the energy efficiency. This study employs multiple regression model to estimate the energy use intensity (EUI) of office buildings by considering factors of building characteristics, weather characteristics, and operational characteristics. Under the aggressive goal that all office buildings have achieved the energy saving target, there is a potential to save 161 million kWh of electricity. It can be achieved gradually by adopting different energy saving targets for office buildings according to the difference between their estimated EUI and actual EUI. For example, office buildings with its' actual EUI exceeding the estimated value by 20% will be addressed with a 2% energy saving target, while office buildings with actual value 10% to 20% more than the estimated EUI value will be addressed with a 1% energy saving target, while office buildings with actual value 0 to 10% more than the estimated EUI value will be addressed with a 0.5% energy saving target. Under this condition, 3.31 million kWh could be saved.

並列關鍵字

office buildings ； energy efficiency indicator, EUI

國際替代計量

我國辦公大樓能源大用戶能源效率指標研析

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