Search results

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 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 chapter presents mathematical model for geothermal energy allocation. The objective is to a find the minimal length of connections between sources and demand points. The problem is formulated as a transportation problem. The model presented in this case study finds optimal assignment of energy sources to urban areas, with full demand for energy satisfied in all districts using one type of energy.

The purpose of this paper is to provide an immediate image about the reality of the renewable energies as experienced by an Algerian company.

The adopted approach focused on assessment of renewable energies’ impact (especially the thermal solar power) on the environment and on the economic aspect of an Algerian company.

The perception of environmental dimension is highlighted by means of an evaluation study supported by the calculation of quantities of CO₂ emitted by two power stations (the new hybrid power station of Hassi R’mel (SPPI) and a conventional one (Sonelgaz)).

This research has limitations that the authors plan to study in perspective: assessing the impact of wind systems on the environmental and economic aspects.

The analysis of obtained results shows and puts emphasis on the importance of renewable energies, especially thermal solar power, by identifying and evaluating the environmental and economic aspects of the new hybrid power station of Hassi R’mel (SPPI) and a conventional one (Sonelgaz) and by comparing the importance of their atmospheric emissions.

The paper shows that this new technology represents in theory a solution for environmental problems and could also be economically competitive with conventional energies if wisely exploited.

This paper aims to explore Turkey’s current energy status with a on renewable energy sources (RES) cooperation mechanisms, within the framework of RES Directive 2009/28/EC. The study uses the SWOT (strengths, weaknesses, opportunities, threats) analysis for drawing results about perspectives of RES cooperation between Turkey and European Union (EU) Member States. In particular, the SWOT analysis provides a clearer view of expanding RES in Turkey, as well as the level of utilization and potential of cooperation mechanisms and renewable energy in the country.

The approach followed incorporates desktop analysis, stakeholders’ mapping and involvement, key factors’ identification and results analysis and validation. The adopted approach is based on research conducted within the context of the “Bringing Europe and Third countries closer together through renewable Energies (BETTER)” (project number: IEE/11/845/SI2.616378) project, co-financed by the Intelligent Energy Europe Programme.

Based on the SWOT analysis conducted for Turkey, there are huge opportunities for RES deployment and cooperation in the country, because of its large unexploited RES potential. Turkey is a country with strategic importance, e.g. regarding energy security. Substantial savings can occur for the EU28 Member States through this cooperation, whereas Turkey will also benefit through income and investments, as well as technology transfers and further synergies associated with the cooperation. For the above potentials to be reached, nevertheless, national policies for RES development would have to be strengthened substantially, and non-economic barriers mitigated.

The potential of Turkey to utilise cooperation mechanisms provides opportunities for RES exporting between the country and EU countries. An analysis of these opportunities for cooperation will allow drawing clearer conclusions on cooperation potentials and business cases for Turkey.

Indonesia is the fourth most populous country in the world, which has a strong effect on primary energy use and depletion of natural resources. This paper considers energy intensity (EI) defined as a measure of the amount of energy it takes to produce a dollar's worth of economic output. The purpose of the paper is to explore how different factors contributed to the decline in Indonesia's EI.

The cointegration regression methodology is applied to explore the long-term nexus between EI and its factors in Indonesia during 1990–2016.

Results show that domestic credit to the private sector, as well as the share of alternative energy, has a significant impact on the decline of EI in Indonesia.

We do not try to rule out other possible determinants of EI. We consider the determinants of EI using time series data, while an ideal analysis would be based on panel-level data. Another limitation is that the study covers only the small-time period from 1990 to 2016.

Our findings serve to aid the government and policymakers in prioritizing improvements in the sphere of energy policy. An important policy implication, regarding Indonesia, that arises from our study is that, for the country to be able to decrease its EI, it must be able to develop its financial market and zero-carbon energy sources, mainly geothermal energy with its huge potential.

We show that energy prices, financial development and the share of alternative energy sources contribute to EI decrease. Policy recommendations include geothermal and solar energy development as one of the most prospective sources of alternative energy in Indonesia.

The purpose of the study is to show the technical potentials of a variety of renewable energy sources in Russia, as well as benefits from their deployment including hydrocarbon savings, emission reduction and lower energy cost.

In the paper, Russia is compared with other countries in terms of actual installed capacity and its dynamics, actual and projected share of renewables in the energy mix. The authors offer calculations of the technical potentials (fuel, heat energy, electrical energy, resource saving and environmental) of renewables (solar PV, wind, biomass, geothermal, low-grade heat, small hydro), identify social and economic preconditions and key effects of their deployment.

The paper features calculations on the renewable energy technology potential, based on the data by Andreenko et al. (2015), authors' calculations and statistical data. This study proves that the cumulative technical potential of the renewables in Russia amounts to 133,935 million units of oil equivalent. This study also offers assessments of oil fuel, black coal and natural gas savings that may be achieved by replacing fossil fuels with renewables; assessments of avoided air pollution calculated as CO- and CO₂-equivalents.

The paper fills in the gap of comprehensive assessments of renewable energy potentials in Russia and a variety of effects that their deployment may entail, based on a single integral methodology. The authors offer a new evaluation of existing and future renewable energy potentials, overcoming the methodological and data constraints faced by previous similar studies. The up-to-date, comprehensive and accurate data will help make the right investment and policy choices.

The purpose of this paper is to propose a new multi-criteria decision making (MCDM) technique to determine the priority of renewable power plants construction conceding technical, economic, social, political and environmental aspects.

First, a comprehensive set of 5 main criteria of technical, economic, social, political and environmental are considered for renewable power plants construction, each including 5 sub-criteria (a total of 25 sub-criteria). Then, the analytic hierarchy process method is used to determine the weight of the criteria. Finally, a new MCDM technique proposed to prioritize the construction of renewable power plants, named TOPKOR. To demonstrate the capability of the proposed method, a case study is conducted in which six types of renewable power plants are evaluated.

Comparison results of the main criteria weights show that the “economic” [0.403], “environmental” [0.296] and “technical” [0.17] aspects have the highest importance, respectively. The results also show that solar, hydroelectric and wave and tidal power plants have the highest priority for construction, respectively.

The result of this research could be useful for related decision makers in construction of the renewable power plants to have a comprehensive set of criteria in technical, economic, social, political and environmental aspects in their decision process.

This research provides a comprehensive set of criteria and sub-criteria for prioritizing the renewable power plants. Moreover, a new hybrid MCDM technique is introduced for prioritizing the construction of power plants.