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LED照明導入の経済・環境効果とその制度的実現条件―宇都宮大学の定量評価に基づく一考察
http://hdl.handle.net/10241/0002000918
http://hdl.handle.net/10241/00020009184968a295-7a4c-42f7-9f1f-86800da2c163
| 名前 / ファイル | ライセンス | アクション |
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本文 (835.6 KB)
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| アイテムタイプ | 紀要論文 / Departmental Bulletin Paper_02(1) | |||||||||||
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| 公開日 | 2025-09-04 | |||||||||||
| タイトル | ||||||||||||
| タイトル | LED照明導入の経済・環境効果とその制度的実現条件―宇都宮大学の定量評価に基づく一考察 | |||||||||||
| 言語 | ja | |||||||||||
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| タイトル | Economic and Environmental Effects of Replacing Fluorescent Lights with LED Fixtures: A Case Study at Utsunomiya University, Japan | |||||||||||
| 言語 | en | |||||||||||
| 著者 |
髙橋, 若菜
× 髙橋, 若菜
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| 言語 | jpn | |||||||||||
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| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||||||||
| 資源タイプ | departmental bulletin paper | |||||||||||
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| 内容記述タイプ | Abstract | |||||||||||
| 内容記述 | This study quantitatively evaluates the economic and environmental impacts of replacing fluorescent lighting with LED fixtures at Utsunomiya University, Japan. Based on an actual implementation conducted in collaboration with the university’s facilities division, the study models the transition from two 40W fluorescent tubes to a single 25W LED fixture and analyzes three levels: individual units, laboratories, and the university as a whole (approximately 7,000 fixtures). Key indicators include annual cost savings, CO₂ emissions reduction, and payback periods. Results show that LED lighting reduces power consumption by about two-thirds, yielding substantial savings and environmental benefits. Each unit saves approximately ¥3,821 and 0.059 tons of CO₂ annually. At the university scale, savings reach ¥38.2 million and 588.6 tons of CO₂ per year. A comparison between two implementation scenarios—full conversion in the first year and phased conversion over seven years—reveals that early full deployment generates over ¥70 million more in cumulative net savings by year eight, demonstrating the economic inefficiency of delayed action. The study underscores that LED lighting is not only cost-effective but also a strategic approach for achieving sustainable campus operations. However, the slow adoption observed in many national universities stems from structural issues: rigid budgeting practices, fragmented decision-making, and a lack of coordinated national financial support. Therefore, LED implementation should be recognized not merely as a technical upgrade but as a structural policy challenge requiring systemic reforms in institutional governance, national funding frameworks, and energy policy integration. | |||||||||||
| 言語 | en | |||||||||||
| 書誌情報 |
ja : 宇都宮大学国際学部研究論集 en : Journal of the School of International Studies, Utsunomiya University 号 60, p. 33-40, 発行日 2025-09-01 |
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| 出版者 | 宇都宮大学国際学部 | |||||||||||
| 言語 | ja | |||||||||||
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| 出版者 | The School of International Studies, Utsunomiya University | |||||||||||
| 言語 | en | |||||||||||
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| 収録物識別子タイプ | PISSN | |||||||||||
| 収録物識別子 | 1342-0364 | |||||||||||
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| 内容記述タイプ | Other | |||||||||||
| 内容記述 | text | |||||||||||
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| 出版タイプ | VoR | |||||||||||
| 出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||||||||
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| 内容記述タイプ | Other | |||||||||||
| 内容記述 | 紀要論文 / Departmental Bulletin Paper | |||||||||||
| 言語 | ja | |||||||||||
