中華民國內政部建築研究所中華民國內政部建築研究所

一、研究緣起
「綠建築」，因其設計具有相較於一般建築物更佳之節能、節水及減碳效益，對於永續發展具有很大的助益，是以長久以來為社會各界所推崇。此外，囿於都市中有許多地區會隨著發展核心的轉移而步入衰退，台灣採取了「都市更新」之手段，透過維護、整建及重建之方式，促進了都市土地的再利用、復甦都市機能、改善都市破舊景觀。為促使都市更新制度之推動，內政部訂立「都市更新建築容積獎勵辦法」，而「綠建築標章」亦為容積獎勵項目之一。然以取得高等級綠建築標章獲得容積獎勵其增額容積衍生之額外碳排量，其與綠建築標章所提供之減碳效益，一直為各界所關心。因此，希冀藉由此研究，釐清綠建築標章與都市更新容積獎勵減碳量之關聯性，並且了解在推動都市更新的同時，是否能透過「綠建築」來促使整體建築物之碳排放量降低，以更能符合永續發展的目標。
二、研究方法及過程
本研究首先透過文獻回顧的方式，分析既有文獻以釐清、統整國內外有關都市更新容積獎勵各項目之效益、綠建築減碳效益及一般建築碳排放量之概念。接著採取深度訪談專家、學者來了解對於現行綠建築和都市更新各容積獎勵項目之減碳效益以及綠建築標章對推動都市更新成效等之見解。最後，運用個案研究法分析現已獲容積獎勵之都市更新案例，釐清其在申請獎勵項目後的建築物碳排放量與綠建築之減碳效益，並使用李克特量表（Likert Scale）問卷調查，將各獎勵項目進行減碳效益比序，以作為整體研究之驗證。
三、重要發現
(一) 彙整分析108年5月15日後核定公告實施之都市更新容積獎勵案例統計資料後發現，申請各容積獎勵項目之中，申請綠建築容積獎勵之個案數為最多，共102案，時程獎勵次之，共78案，文化資產保存最少，無人申請。
(二) 都市更新容積獎勵項目減碳效益比序後發現，專家學者認定具備較高減碳效益者分別依序為綠建築、智慧建築及規模獎勵，有高達56%之填答給予綠建築5分極高減碳效益之評分，為13項獎勵項目中被認定最具有減碳效益之項目；而被認為不具備或僅具微幅減碳效益者為原容積大於基準容積、時程獎勵及協議合建等，其中以原容積大於基準容積有67%之評分給予0分無減碳效益為所有獎勵項目之末，為被認定與節能減碳最無關聯性之項目。
(三) 根據計算結果，本研究蒐集之125件都市更新案例中整體綠建築容積獎勵都市更新案例取得之獎勵容積所產生之額外碳排放量約為12萬公噸，又綠建築容積獎勵都市更新案例所預期能帶來之建築物二氧化碳減碳量約為45萬公噸，可知獎勵容積之增碳量僅占綠建築減碳量之26.97%。
(四) 綠建築被納入都市更新容積獎勵項目之列，雖會因為取得獎勵容積而增加建築樓地板面積，但產生之額外建築物碳排放量卻僅僅只占綠建築所能達到之減碳量的三成不到，故本研究認為獎勵容積並不會大幅減損綠建築之減碳效益，反之若能因為容積獎勵政策而促使更多實施者將新建之都市更新案例建築物建為綠建築，更能替整體都市環境降低建築產業所帶來之碳排放量，使得整體城市發展更加永續、低碳且生態。
四、主要建議事項
建議一
定期舉辦綠建築相關宣導講習或參訪活動：立即可行建議
一、主辦機關：內政部建築研究所
二、協辦機關：社團法人臺灣綠建築發展協會
三、建議內容：
本研究在與都市更新、綠建築等領域具備相關專業之專家學者進行深度訪談以及座談會議後，發現多數人認為目前在實務上普遍都市更新實施者對於綠建築之減碳效益，甚至於其他各項獎勵項目之效益目的都不甚了解，只淪於獎勵值之計算，以符合成本利益考量。故本研究建議未來可加強透過舉辦宣導講習課程或實際綠建築案例參訪，邀請都市更新相關權益人、實施者參與，藉以使得社會大眾能更加瞭解綠建築之減碳效益以及都市更新容積獎勵相關政策。
建議二
深入研討綠建築相關實際減碳量計算分析：中長期建議
（一）主辦機關：內政部建築研究所
（二）協辦機關：財團法人台灣建築中心
（三）建議內容：
本研究在爬梳綠建築減碳相關文獻後，並與都市更新、綠建築等領域具備相關專業之專家學者進行深度訪談以及座談會議後，發現目前尚缺乏對於綠建築設施設備甚至於整體建築物之實際減碳量之計算方式、結果，導致實務上大眾對於綠建築之減碳效益缺乏較一致性之共識認知，以致使綠建築被納入都市更新獎勵項目後易遭受相關質疑。故本研究建議未來可研擬相關綠建築減碳量計算分析之研究計畫，深入探討更為細緻之綠建築減碳量計算方式，以作為未來綠建築與都市更新等相關政策推廣宣導之參考依據。

I、Introduction
The Green Building are of great help for the environmental protection and sustainable development of the earth so the green building label has long been respected by all sectors of society. Due to limited land resources in urban development, the Ministry of the Interior has formulated the "Urban Renewal Ordinance" in order to encourage old buildings to undergo renovation and reconstruction. The provision of designated public welfare facilities, historic sites, historical buildings, memorial buildings and community buildings, barrier-free environment design, earthquake-resistant design, time-course rewards, scale rewards and old illegal buildings, and other volume rewards. At the same time, it will also be voluntary The "Green Building Label" of the nature of the application is included in one of the volume award projects.
However, the additional carbon emissions brought about by the volume incentives obtained due to the increase in the volume of the high-end green building labels and the carbon reduction benefits provided by the green building labels have been concerned by all walks of life. The project will be evaluated by calculating the evaluation of the "Green Building Label" awarded project case, which actually won the Urban Renewal Award, to clarify and compare the relationship between the number of "Green Building Label" awarded and energy conservation and emission reduction.
II.Research Methods and Process
The project adopts literature analysis method, case study method and interview method to conduct research. Through the literature research and the survey of the concepts of the benefits of urban renewal volume award projects at home and abroad, green building carbon reduction benefits, and general building carbon emissions.
Then, in-depth interviews with experts and scholars were taken to understand the carbon reduction benefits of the current green building and urban renewal volume award projects, and the green building label's insights on the effect of promoting urban renewal. Finally, use the case study method to analyze the urban renewal cases that have been awarded volume awards, clarify the carbon emissions of buildings and the carbon reduction benefits of green buildings after applying for the award projects, and use the Likert Scale, The carbon reduction benefits of each award project will be compared as a verification of the overall research.
III.Major Outcomes
1.After analyzing the statistics of the urban update volume award cases, it is found that among the volume award projects, the number of cases applying for the green building volume award is the largest, with a total of 102 cases, followed by the schedule award, with a total of 78 cases. And cultural assets Save the least, no one applies.
2.After comparing the carbon reduction benefits of the urban renewal volume award projects, it was found that the experts identified as having higher carbon reduction benefits were green buildings, smart buildings, and scale awards. Among the 13 award projects, they were identified as having the most carbon reduction benefits. Those who are considered to have only slight carbon reduction benefits are those whose original volume is greater than the baseline volume, time-course rewards, and joint construction agreements.
3.According to the calculation results, in the 125 urban renewal cases the overall green building volume award urban renewal case generated additional carbon emissions of approximately 121,000 metric tons, and the green building volume award urban renewal case is expected to bring about 451,000 metric tons, it can be seen that the carbon increase of the incentive volume only accounts for 26.97% of the carbon reduction of green buildings.
4.Green buildings are included in the urban renewal volume award project. Although the floor area of the building will be increased due to the award volume, the additional building carbon emissions generated only account for the carbon reduction that green buildings can achieve Therefore, this study believes that the incentive volume will not significantly reduce the carbon reduction benefits of green buildings. On the contrary, if the volume incentive policy can encourage more implementers to turn the newly built urban renewal case buildings into green buildings, it will be more effective. Reduce the carbon emissions brought by the construction industry for the overall urban environment, making the overall urban development more sustainable, low-carbon and ecological.
IV.Suggestions
1.Organize green building advocacy workshops or visits green buildings.
Organizer:ABRI
Co-organizer:Taiwan Green Building Council
After conducting in-depth interviews with experts and scholars in related disciplines, this research found that most people believe that urban renewal implementers do not know much about the carbon reduction benefits of green buildings and even the benefits of other incentive projects. It is only reduced to the calculation of the reward value to meet the cost and benefit considerations. Therefore, this research suggests that in the future, publicity training courses or actual green building case visits can be held, so that the public can better understand the carbon reduction benefits of green buildings and the related policies of urban renewal volume incentives.
2.Discussion on calculation and analysis of actual carbon reduction of green buildings.
Organizer:ABRI
Co-organizer:TABC
After conducting in-depth interviews with experts and scholars in related disciplines, this research found that there is still a lack of calculation methods for the actual carbon reduction of overall green buildings. As a result, in practice, the public lacks a substantial understanding of the carbon reduction benefits of green buildings, which has led to related doubts when green buildings are included in the urban renewal award program. Therefore, this research proposes that in the future, a research plan for the calculation and analysis of the carbon reduction of green buildings can be studied, and a more detailed calculation method of the carbon reduction of green buildings should be explored as a reference for the promotion of green buildings in the future.