Preface: 6th Astechnova International Energy Conference (ASTECHNOVA 2021)

Astechnova International Energy Conference (ASTECHNOVA) is an international conference that is annually organized by the Department of Nuclear Engineering and Engineering Physics, Universitas Gadjah Mada, Indonesia. This 6th ASTECHNOVA was virtually held on 24-25 August 2021 as a part of the Joint Conference EPIC-ASTECHNOVA 2021. This conference provides an ideal platform for the researchers, academicians, engineers, politicians, economists, energy enthusiasts, energy planners, and energy analysts, to share the recent research and development in the energy science discipline from various perspectives. The topics covered in this conference can be generally categorized in five (5) areas, namely new and renewable energy, energy efficiency and conservation, nuclear technology, energy security, and urban infrastructure and utilities. The joint conference was attended by approximately 500 participants from various universities and institution in Taiwan, Bangladesh, Germany, India, Japan, South Korea, Malaysia, Thailand, Canada, United States of America, Singapore, and Indonesia. The panel session of this conference includes one (1) keynote lecture and six (6) invited talks by the panel speakers from across the globe, including Japan, United States of America, United Arab Emirates, South Korea, and Indonesia. As for the parallel session, oral presentations were delivered by the authors who submit their researches. In total, ASTECHNOVA 2021 organizer accepted 48 paper submissions after reviewed by distinguished experts in the field. The reviewing process has considerably reduced the number of published papers, but it also has raised the proceedings’ quality. Finally, we would like to thank all the participants, authors, panel speakers, reviewers, panel session moderators, parallel session chairs, steering committee, organizing committee, technical coordinators, and all other supporting staff for their tremendous support during this conference. Astechnova 2021 Editorial Team List of Foreword from Rector of Universitas Gadjah Mada, Foreword from Acting Director for Non-Aligned Movement Centre for South-South Technical Cooperation (NAM CSSTC), List of Committees are available in this pdf.

Lighting Enhancement of Classrooms in Heritage School Buildings Based on the Greenship Rating Tools

This study aims to suggest some strategies for improving the quality of lighting in adaptive reuse buildings. Recently, several concerns have been raised about the lighting environment of heritage buildings that have been adaptively reused for a different function. These changes may lead to a problem for the occupants of the building, particularly on the indoor lighting quality. It is regarded as one of the most affected variables in the building of heritage that is adaptively reused. Green Building Council Indonesia (GBCI) has been concerned about this issue, particularly to the requirements related to lighting power density and control, visual comfort, outside view, and daylight. The purpose of this research is therefore to suggest some strategies for improving the quality of lighting in the two classrooms of two heritage schools in Surabaya, Indonesia, based on the Greenship Interior Space rating tool. There are three credits for lighting power density and control, and one credit for visual comfort criteria. By performing light mapping measurements, calculations, and computer simulation, this analysis is qualitative. To capture the condition of the classrooms examined, building observation was also performed. The observation shows that the existing condition gains four credits only. If adopted, the strategies proposed could achieve eight credits, which is covers 80% of the assessment points. The higher credits achieved reflect a better lighting environment and better value for energy efficiency and conservation.

Green Building Analysis of PT United Tractors on Existing Building Based on the Latest Rating Tools Green Building Council Indonesia

PT United Tractors building has received a Platinum predicate for the Greenship New Building Category. However, the more advanced the development and growth of the company, research must continue to be done to see if the building is still feasible in its current condition. The method used in this research is to compare the condition of the existing building with the Greenship New Building Assessment tool. After comparisons, a new category suitability analysis was carried out for existing buildings. The analysis was carried out by direct measurement methods, interviews and using secondary data. From the results of the study, the PT United Tractors building received a Gold rating, because it met five building eligibility requirements, including Appropriate Site Development, Energy Efficiency and Conservation, Water Conservation, Material Resources and Cycle, Indoor Air Health and Comfort. The assessment of the suitability of the criteria in each category showed a result of 65 points (57%). For this reason, it needs improvement in order to reach the highest point in Platinum rank.

An Institutional-Based Governance Framework for Energy Efficiency Promotion in Small Island Developing States

Energy efficiency and conservation policy continues to take the proverbial “backseat” to energy access and renewable energy policy discourses in small island developing states (SIDS). In this study, we intend to motivate the energy efficiency policy agenda to encourage more action. To do so, we review the current energy challenges in SIDS and the role of energy efficiency in addressing those challenges, discuss the trends in the rate of improvement in energy efficiency in SIDS, exhibit an updated list of energy efficiency programs and initiatives being implemented in SIDS, consider barriers to energy efficiency implementation and set forth a policy-focused plan to accelerate action. Barriers for the adoption of energy efficiency policies continue to be institutional and policy- and governance-oriented; economic and financial; informational; and technical. A four-pronged policy advancement approach tackling initiation, incentivization, information and investment is recommended to tap the potential gains from energy efficiency. We attempt here, based on our findings, to offer a more practically executable plan of action, focusing squarely on combining institutional arrangements, policy requirements and current energy efficiency affairs in SIDS.

Strategies for Improving the Sustainability of Data Centers via Energy Mix, Energy Conservation, and Circular Energy

Information and communication technologies (ICT) are increasingly permeating our daily life and we ever more commit our data to the cloud. Events like the COVID-19 pandemic put an exceptional burden upon ICT. This involves increasing implementation and use of data centers, which increased energy use and environmental impact. The scope of this work is to summarize the present situation on data centers as to environmental impact and opportunities for improvement. First, we introduce the topic, presenting estimated energy use and emissions. Then, we review proposed strategies for energy efficiency and conservation in data centers. Energy uses pertain to power distribution, ICT, and non-ICT equipment (e.g., cooling). Existing and prospected strategies and initiatives in these sectors are identified. Among key elements are innovative cooling techniques, natural resources, automation, low-power electronics, and equipment with extended thermal limits. Research perspectives are identified and estimates of improvement opportunities are mentioned. Finally, we present an overview on existing metrics, regulatory framework, and bodies concerned.

Deployed Sustainable Strategies to Realize Benefits from Implementation of Energy Management Systems Across Company’s Multi Functioning Organizations

Energy efficiency and conservation become an integral part of the business culture, and it simply means using less energy to perform the same tasks. Due to increasing internal demand on energy in many parts of the world, societal expectations for comprehensive approaches on energy efficiency have been forced into focus. As world energy demand soars, it is known that the manufacturing, power generation and transportation sectors are the main consumers to the intensive utilization of energy resources. The demand from the growing population has overwhelmed the current capacity. It is inevitable; therefore, many oil companies are now participating in on-going efforts to conserve energy, and do so in a sustainable manner by means of implementing energy management systems (EnMS) in accordance to internationally recognized standards. However, its progress has just been seen, and unfortunately, most of the oil companies are far away from matured management to excel in energy performance. Most of the oil companies consider EnMS as ambition and certificate on the wall rather than a driving vehicle to become a reference company. In fact, cost reduction is the main focus rather than to explore other hidden benefits of EnMS. More seriously, lack of dedicated measures and right strategies to push for the successful implementation. This paper discusses proven strategies that drive for full realization of EnMS benefits.

Toward Sustainable Power Supply and Consumption of an Emerging Economy (Nigeria)

Electricity supply offers significant and immense benefits to human society, and it is instrumental in driving economic growth, increased standard of living and technological developments. Its sustainable supply and consumption is related to many ecological discussions, and thus, present emphasis on renewable sources, such as solar and hydro. In Nigeria, however, challenges associated with electricity generation, transmission, distribution and consumption have not been adequately tackled. Poor electricity supply has adversely impacted the economy resulting to poor production, higher prices of goods and services, closure of industries, and loss of competitive advantage of Nigerian businesses. Conversely, energy-inefficient and non-conservation consumption behaviour of Nigerian electricity consumers contributes to the electricity demand - demand gap. Energy-efficiency and conservation is a sustainable tool for efficient power system. The paper show that the use of mostly post-paid and unmetered billing system is implicated in energy-inefficient consumption. The paper advocates for deployment of pre-paid meters to every electricity consumer; fiscal management, enforcement of energy saving policies such as use of compact fluorescent lamps (CFL); and emphasis on renewable energy (hydro and solar) sources, for electricity generation.

Evaluasi Sertifikasi Green Building pada Gedung Institut Teknologi & Sains Bandung

Global warming is one of the world’s prominent issue that related to the environment. As a support to reduce the causes of global warming, Institut Teknologi dan Sains Bandung (ITSB) has applied a concept of green building and got the greenship building’s certificate since 2013 2016 with the result score was 64 points or gold category of Green Building of Council Indonesia (GBCI). This study aims at evaluating the existing building of ITSB for knowing the new result score of greenship building’s certification. This results score can be a simple directive for ITSB to do the new certification. The collecting data that used were partisipative observation, interview, and quisionnaire as the primary data and literature as the secondary data. The evaluative-descriptive qualitative methods was used to analyze data. The evaluating of Greeship Existing Buildings using an assessment from GBCI with 6 parameters, those parameters are Approprite Site Developent (ASD), Energy Efficiency and Conservation (EEC), Water Conservation (WAC), Material Resource and Cycle (MRC), Indoor Health and Comfort (IHC) , and Building Environmental Management (BEM). The result of this research show that the accumulation of the scores of 6 parameters were 47 points, it means that ITSB could receive the bronze category on Greenship Existing Building.