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This paper aims to conduct a detailed analysis of the industrial practices currently being used in the geothermal energy industry and to determine whether they are contributing to any limitations. A HAZOP-based upgradation model for improvement in existing industrial practices is proposed to ensure the removal of inefficient conventional practices. The HAZOP-based upgradation model examines the setbacks, identifies its causes and consequences and suggests improvement methods comprising of modern-day technology.

This paper proposed a HAZOP-based upgradation model for improvement in existing industrial practices. The proposed HAZOP model identifies the drawbacks brought on by conventional practices and suggests improvements.

The study reviewed the challenges geothermal power plants currently face due to conventional practices and suggested a total of 22 upgradation recommendations. From those, a total of 11 upgradation modules comprising modern digital technology and Industry 4.0 elements were proposed to improve the existing practices in the geothermal energy industry. Autonomous robots, augmented reality, machine learning and Internet of Things were identified as useful methods for the upgradation of the existing geothermal energy system.

If proposed recommendations are incorporated, the efficiency of geothermal energy generation will increase as cumulating setbacks will no longer degrade the work output.

The proposed recommendation by the study will make way for Industry 4.0 integration with the geothermal energy sector.

The paper uses a proposed HAZOP-based upgradation model to review issues in existing industrial practices of the geothermal energy sector and recommends solutions to overcome operability issues using Industry 4.0 technologies.

This study aims to improve the performance of geothermal energy. Therefore, this research requires a deep examination of the determinant factors that affect the performance of geothermal energy; the results of this study are expected to increase the outcomes that can be enjoyed by the people of Indonesia.

This research uses quantitative approach. Data are obtained via questionnaires. The population in this study is all stakeholders of the national geothermal energy policy throughout the region. The stakeholders in question are the Community Care for Energy and the Environment (MPEL), using a sample of 400 respondents. The variables used were human resource capacity (X1), political resource capacity (X2), economic resource capacity (X3), social resource capacity (X4), performance of geothermal energy policy (Y1) and geothermal energy policy outcomes (Y2). Data analysis used to solve hypothetical model built in this research is partial least square.

While human resource, political resource, economic resource and social resource capacities affect the performance of geothermal energy policy, those capacities directly affect the performance of geothermal energy policies. On the other hand, the results of the indirect effect test show that with the mediation of good geothermal energy policy, it will be seen that the effect of human resource capacity, political resource capacity, capacity of economic resources and the capacity of social resources to the utilization of geothermal energy. The utilization of geothermal energy cannot be directly felt by the community without the support of the formulation of geothermal energy policy or unless it is supported by high human resources, political resources, economic resource and social resource capacities.

No previous research has comprehensively examined the effect of human resource, political resource, economic resource and social resource capacities on geothermal energy policy and its implications for the outcomes of geothermal energy policy.

This chapter aims to identify new perspectives of geothermal energy investments. For this purpose, all studies in the Web of Science regarding the geothermal energy are taken into consideration. These studies are evaluated with the help of text-mining approach. In this framework, most frequently stated words, two words, and three words are identified. It is concluded that technological development with respect to the geothermal energy is an important issue in this framework. After that, it is also determined that risk is another important factor in this regard. Finally, new implications regarding the geothermal energy are also considered by the researchers. Geothermal energy has a positive contribution to solve many different problems, such as energy dependency, current account deficit problem, and carbon emission. Hence, this study generated the significant issues to improve these investments. While considering the results, it is understood that technological developments related to the geothermal energy projects should be followed effectively. In addition, an effective risk evaluation should be conducted before implementing these projects.

In recent years, fast urban expansion in China has stimulated rapid energy consumption growth and increased environmental pollution. Therefore, it is important to utilize clean and renewable energy in district heating for the sustainable urban development. This study aimed to investigate the environmental and economic impacts of one hot dry rock (HDR) geothermal energy-based heating system in a life cycle framework.

By using the input–output-based life cycle analysis model, the energy consumption, CO₂ emission and other pollutants of the HDR-based heating system were evaluated and then compared with those of other four heating systems based on burning coal or natural gas. The life cycle costs of the HDR-based heating system were also analyzed.

The results showed that using HDR geothermal energy for heating can significantly reduce fossil fuel consumption, CO₂ emission as well as environmental pollution, and its life cycle costs are also competitive.

This study not only evaluated the environmental and economic impacts of the HDR-based heating system in a life cycle framework but also provided a methodological life cycle assessment framework that can estimate both economic and environmental benefits, which can be used in policy making for China’s urban development.

This paper aims to investigate the new geothermal law and its implications for geothermal development in Indonesia.

This paper investigates new geothermal law and its implications for geothermal development in Indonesia by using comparable law article to discuss this development. All the data are obtained from literature studies based on the history and background, ownership and access, investment and risks, electricity market and re-policies, environmental regulations and community participation around the geothermal resources.

Geothermal industries in Indonesia need assurance and clear legal basis to be developed. Geothermal investors, whether foreign or local, need policy assurance and good business structures that can create a secure investment environment. Furthermore, a good relationship with international cooperation agency needs to be improved to establish knowledge transfer regarding technologies and information about exploration, production and geothermal development. This is essential to further develop the geothermal utilization and prepare Indonesia to be the country with the biggest reduction in CO₂ emission in 2025. New geothermal regulation (Law No.21 Year 2014) has facilitated the geothermal activities. After the issuance of this regulation, the activities can be done at conserved, production and conservation forest. Moreover, the public service agency (BLU) or state-owned enterprise (BUMN) assignment scheme can boost the geothermal industries development.

Indonesia has huge geothermal resources because of its geological condition that is located at volcanoes path, also known as “Ring of Fire”. According to 2017 ESDM data, Indonesia’s geothermal potentials are almost 30 GW and are distributed to 331 potential points. However, only 5 per cent of those potentials (1,643.5 MW) have been utilized to date. The huge potentials can be utilized optimally to support the Government’s plan in achieving the energy security. Therefore, policies that regulate geothermal utilization is strategically essential for Indonesia’s future.

This paper aims to present a forecast for renewable energy production in the USA. Growth curves are used to conduct the forecasts.

The analysis is based upon a literature review, supplemented by collection of secondary data. The study then focuses on applying the Pearl growth curve.

The authors' results show that biomass energy production is growing the fastest followed by geothermal and wind. Additionally, the forecast for solar energy production shows little to no growth over the next two decades.

If the US government hopes to achieve its goals in renewable energy, considerable funding and incentives will have to be put forth to accelerate the growth of renewable energy. Since the biomass technology is already growing nicely it makes sense to put the additional resources behind the other three technologies to close the 10.3 percent gap being forecasted. The government also needs to put more funding into dual renewable plants such as wind or solar combines with pumped hydro, this will ensure environmental and reliability are both maintained. Finally, for renewable energies to be competitive in the long term, considerable research needs to go into driving down the cost so there is not a need for subsidies.

This study provides value in providing a forecast for expected future growth for renewable energy sources.

This research seeks to investigate sources of renewable energy into the everyday operation of federally owned facilities. The goal is to present comparisons of existing US federal buildings and analyze the savings and methodologies for acceptance of each project for the use of building and project managers within the US federal government or other researchers interested in similar analysis.

Data were analyzed on several case studies where solar, wind, and geothermal sources of renewable energy have already been integrated in federally owned facilities. The analysis focused on cost due to available data and resources, and its scope was to estimate the potential for success or failure and possible outcomes.

Current case studies of solar, wind, and geothermal projects within the US federal government suggest that cost savings are not the sole reason for adopting such technologies. Projects move forward based on additional motivations such as reduced environmental impact, government policy, and in an effort to increase leadership, awareness, and image.

A larger number of case studies are needed to infer trends in federal renewable energy projects. The methodology is aimed at an objective comparison of electricity costs between buildings; however, as the findings demonstrate, the quantitative normalized ratio implemented needs other soft considerations to fully represent renewable energy scenarios in US federal buildings.

Key decisions that must be made in order to get a renewable energy‐building project completed may be facilitated by using the paper and its implications of the need for soft factors to become part of the analysis.

The analysis presented here includes five stages or key decisions that must be made to get a renewable energy project in US federal facilities to award, including criteria beyond economics. Findings support the need for inclusion of soft factors, along with economic considerations for project success.

The purpose of this paper is to describe how, in the recent attempts to stimulate alternative energy sources for heating and cooling of buildings, emphasis has been put on utilisation of the ambient energy from ground source heat pump systems (GSHPs) and other renewable energy sources.

Exploitation of renewable energy sources and particularly ground heat in buildings can significantly contribute towards reducing dependency on fossil fuels. This paper highlights the potential energy saving that could be achieved through use of ground energy source. It also focuses on the optimisation and improvement of the operation conditions of the heat cycles and performances of the direct expansion (DX) GSHP.

It is concluded that the direct expansion of GSHP are extendable to more comprehensive applications combined with the ground heat exchanger in foundation piles and the seasonal thermal energy storage from solar thermal collectors.

The paper highlights the energy problem and the possible saving that can be achieved through the use of the GSHP systems and discusses the principle of the ground source energy, varieties of GSHPs, and various developments.

In light of the shortcomings of the current world order for indigenous peoples and the environment, there is a need to make “another world possible” by promoting new ways of thinking and articulating indigenous economies. This paper aims to address this issue.

This paper examines Māori enterprises involved in geothermal energy production as existing expressions of this other “possible world”.

The paper finds that Māori enterprises involved in geothermal energy production are increasing in number and are demonstrating complex ways of conducting business. In seeking a clearer picture of these enterprises, it was found that analysing how Māori values were “added in” to these businesses was not enough. Instead it was found that examining how these enterprises could be charted with ethical coordinates allows a more complete account of what is taking place.

This paper is of value for scholars analysing the value‐based aspects of economies, particularly indigenous business enterprises. Charting ethical coordinates allows the analysis of indigenous enterprises to move away from thinking about them in binary terms, as either Indigenous or non‐indigenous. Having a way of thinking about and articulating the complexity of indigenous enterprises enables a richer conversation about their attributes.

This chapter tests theoretically and empirically the existence of a stable relationship between energy consumption and CO2 emissions. Based on microeconomics and physics, a model has been specified and applied to annual data for twenty countries, which representing 61 percent of the world’s population in 2018, over the period 1995–2015. The data are from the International Energy Agency (2019) and econometric techniques including panel data and causality tests have been used. The results indicate that there is a causal relationship between energy consumption and CO2 emissions. In general, consumers cannot directly change emissions caused by production processes, but they can act on emissions caused by their own domestic energy consumption. Approximately three quarters of domestic energy consumption is due to heating and domestic hot water consumption. Taking into account the lower emissions and the lower economic cost of the initial investment, four potential energy systems have been selected for use in heating and domestic hot water. Their social returns have been assessed across nine of the twenty countries in the sample over a lifecycle of 25 years from 2018: France, Portugal, Ireland, Spain, Iceland, Germany, United Kingdom, Morocco and the United States. Cost-benefit analysis techniques have been used for this purpose and the results indicate that the use of thermal water, where applicable, is the most socially profitable system among the proposed systems, followed by natural gas. The least socially profitable systems are those using electricity.