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"Inefficient energy use in buildings is both increasingly expensive and unsustainable. Indeed, the reduction of the energy consumption of existing buildings is as least as important as the design of new low-energy buildings. Controlling energy use is one thing, but it is important to assess or estimate it, and to understand the range of interventions for reducing its use and the methods for assessing the cost effectiveness of these measures. This comprehensive guide clearly and concisely covers the various issues from a theoretical standpoint and provides practical, worked examples where appropriate, along with examples of how the calculations are carried out. Topics covered include:where and how energy is used in buildings energy audits measuring and monitoring energy use techniques for reducing energy use in buildings legislative issues.It provides a template for instigating the energy management process within an organization, as well as guidance on management issues such as employee motivation, and gives practical details on how to carry it through. This book should appeal to building managers and facilities managers and also to students of energy management modules in FE and HE courses."

" Pada bangunan fotovoltaik terintegrasi pada atap di daerah tropik, sinar matahari yang jatuh pada permukaan modul fotovoltaik berpeluang memanaskan modul photovoltaic itu sendiri dan memanaskan ruangan di bawahnya. Pemanasan ruangan menurunkan kondisi termal sedangkan pemanasan modul menurunkan kinerjanya dalam menghasilkan listrik. Paper ini membahas eksperimen pengukuran suhu permukaan modul fotovoltaik dan permukaanatap asbes semen sebagai pembanding. Kegiatan ini jugamengukur dampak kenaikan suhu pada masing-masing ruangdi bawahnya. Eksperimen menggunakan mock-up berskala kecil yang dipaparkan ke sinar matahari langsung. Hasil eksperimen menunjukkan bahwa suhu permukaan atap fotovoltaik lebih rendah daripada atap fiber semen. Suhu ruang di bawah atap fotovoltaik juga lebih rendah daripada suhu ruang di bawah atap fiber semen. Perhitungan empirismenunjukkan bahwa kerugian penurunan daya listrik yang ditemukan tidak lebih dari 1,7%.

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AbstractIrradiation on the surface of photovoltaic module heats up the photovoltaic module itself and the room underneath the roof of integrated photovoltaic building in the tropics area. Room heating reduces thermal condition and photovoltaic module surface heating reduces its performance in generating electricity. This paper discusses an experiment of measuring the surface temperature of photovoltaic modules and fiber-cement roof surface as a comparison. This experiment also measures the impact of rising temperatures in each space underneath. It used small-scale mock-ups exposed to direct sunlight. The result of the experiment shows that photovoltaicroof surface temperature is lower than fiber-cement roof temperature. The temperature of room under photovoltaic roof is also lower than the one under fiber-cement roof. Empirical calculation shows that loss of electrical power found is only up to 1.7%"

"Bangunan mengkonsumsi 32% dari total energi di dunia. Bangunan komersial di Indonesia mengalami peningkatan konsumsi energi sebesar 0,11% dari 2019 hingga 2020. Pasar tradisional adalah salah satu bangunan komersial yang mendapat perhatian dari pemerintah terkait konsumsi energinya pascarevitalisasi. Revitalisasi pasar tradisional dilakukan dalam pemenuhan indikator SNI Pasar Rakyat untuk pengelolaan pasar yang berkelanjutan. Sejak 2019, konsep bangunan hijau sudah diterapkan pada revitalisasi pasar tradisional dengan efisiensi energi sebagai salah satu aspeknya. Namun, data konsumsi energi pasar-pasar tersebut hingga saat ini belum tersedia begitu juga dengan benchmark Intensitas Konsumsi Energi (IKE) pasar tradisional. Penelitian ini mengeksplorasi tentang konsumsi dan strategi konservasi energi pada pasar tradisional yang direvitalisasi dengan konsep bangunan hijau. Benchmarking IKE pasar tradisional yang dihasilkan penelitian ini dapat menjadi tolok ukur bagi pasar yang sedang atau akan direvitalisasi. Strategi konservasi energi dalam penelitian ini mempertimbangkan pemenuhan ketentuan OTTV dan WWR pada parameter selubung bangunan serta tingkat pencahayaan dan densitas daya lampu pada parameter sistem pencahayaan. Pasar Prawirotaman Yogyakarta dan Pasar PON terpilih menjadi studi kasus penelitian ini. Penyelidikan konsumsi dan strategi konservasi energi dilakukan dengan pendekatan Building Information Modeling (BIM) melalui Autodesk Revit untuk modeling 3D dan Green Building Studio untuk simulasi energi. Pengumpulan data dilakukan melalui wawancara, observasi lapangan, studi dokumen serta pengukuran dengan Power Quality Analyzer (PQA) dan Amperemeter. Benchmarking IKE dalam penelitian ini berdasarkan luas bersih bangunan, jam operasional, dan jumlah pengguna secara berurutan adalah sebesar 23,11 kWh/m2/tahun; 34,84 kW/tahun; dan 0,70 kWh/orang/tahun. Penggunaan kaca double clear glass dan penambahan densitas daya lampu menjadi strategi konservasi yang diusulkan pada studi kasus.

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Buildings consume 32% of the world’s total energy. Commercial buildings in Indonesia experienced a 0,11% increase in energy consumption from 2019 to 2020. Traditional markets are one of the commercial buildings that have received attention from the government regarding their post-revitalization energy consumption. The revitalization of traditional markets is carried out to fulfil the SNI Pasar Rakyat indicator for sustainable market management. Since 2019, the green building concept has been applied to revitalizing traditional markets with energy efficiency. However, data on energy consumption in these markets is not yet available, as well as Energy Use Intensity (EUI/IKE) benchmarks for traditional markets. This study explores energy consumption and conservation strategies in traditional markets, which are revitalized with green buildings concept. The IKE benchmarking of traditional markets produced by this research can be used as a benchmark for markets that are being or will be revitalized. The energy conservation strategy of this research considers the fulfilment of OTTV and WWR provisions on the building envelope parameters as well as the level of lighting and lighting power density on the parameter of the lighting system. Prawirotaman Market Yogyakarta and PON Market Trenggalek were selected as case studies of this research. The study of consumption and energy conservation strategies was carried out using the Building Information Modeling (BIM) approach through Autodesk Revit for 3D modeling and Green Building Studio for energy simulation. Data was collected through interviews, field observations, document studies and measurements with Power Quality Analyzer (PQA) and Amperemeter. This study’s benchmarking of EUI/IKE based on the occupied or net floor area of the building, operating hours, and the number of users are 23,11 kWh/m2/year; 34,84 kW/year; and 0,70 kWh/person/year, respectively. The use of double clear glass and the addition of lighting power density are the conservation strategies proposed in the case study."