Implementation Of Renewable Energy Research Articles

Study of Supply Chain Management of Industrial Plan Manufacturing Development of Marine Power Turbine in Indonesia

Indonesia had announced its target to reduce carbon emission by achieving 0% Net Zero Emission (NZE) by 2060. So starting in 2022, the Government must update the regulations governing the energy sector to encourage the implementation of renewable energy. As an archipelagic country, one of the renewable energy potentials is Ocean Renewable Energy (ORE). The contribution of the ORE to Indonesia’s National Energy Mix is almost none. Thus, it is a good chance for the government to give more incentives for implementing ORE, especially in eastern Indonesia where they are abundantly available. Since the infrastructure and supporting facilities there, including industries, are sparse and the supply chain management depends on Java Island, it needs special regulations to speed up the implementation of ORE. This paper studies the supply chain management of the implementation of marine current turbines base on secondary data and the experience of engineers from the National Research and Innovation Agency when they implemented the converter technology of the marine current turbine at Larantuka Strait, Nusa Tenggara Timur. Results In this study, the implementation of ocean current turbines must be integrated with government policies related to maritime connectivity and security because the energy produced is large enough and suitable for execution.

Life cycle greenhouse gas emissions of cogeneration energy hubs at Japanese paper mills with thermal energy storage

Variable renewable energy-based power is expected to increase toward a sustainable society, although the power cannot be dispatched effectively due to its intermittent nature. To accelerate renewable energy implementation, we simulated energy flows of paper mills installing wind energy and evaluated their potentials to function as energy hubs for appropriate early-stage design. We targeted 39 Japanese paper mills assumed to have thermal energy storage, wind–thermal energy converters and regional woody biomass installed, and analyzed the amount of power and heat selling and life cycle greenhouse gas emissions. The results for the paper mills were compared with conventional mills to examine effective conditions for greenhouse gas reduction. The amount of power or heat selling depended on the capacity of the paper mill and the installed equipment. Most paper mills could reduce greenhouse gas using thermal energy storage, wind energy, and woody biomass. The paper mill with the highest life cycle greenhouse gas reduction, compared with conventional mills, could achieve a 190% reduction. To function as a cogeneration energy hub, the equipment installed in paper mills should be designed according to the conditions of the paper mills and their regions.

The impact of competition, trust and capital on renewable energy auction outcomes in sub-Saharan Africa: Analysing auctions in South Africa, Zambia and Namibia

Africa is short of power, despite having abundant renewable energy resources. Over the past decade, renewable energy auctions have emerged as an effective mechanism to competitively procure utility-scale private power projects. This paper identifies the elements contributing to efficient price and effective project realisation outcomes through comparative case studies in South Africa, Zambia and Namibia. The analysis combined existing literature and theory on those elements that contribute to success in Independent Power Projects (IPPs), with that on renewable energy auction design and implementation. The application of an integrated analytical framework shows that the introduction of renewable energy auctions in Africa provides an essential programmatic element which connects existing country and project level factors and is crucial in achieving superior project realisation and price outcomes, compared to projects procured through direct negotiation or feed-in tariffs.Auction price outcomes are mainly determined by factors that act as auction signals, barriers and incentives primarily geared towards increasing competition in the procurement process and lowering projects' cost of capital. The case studies also show that project realisation is determined by bidder quality, project preparation levels, investor commitment, constraints (revenue stream and political economy) and post-award support. These are influenced by factors from all three levels – country, project and programme – that act as auction signals, barriers, incentives and support measures. Factors influencing bidders’ trust in the auctioning authority and auction process are particularly important signals influencing both project prices and realisation rates.

A turn to geopolitics: Shifts in the German energy transition discourse in light of Russia's war against Ukraine

Germany's Energiewende is often considered a role model for the transition to renewable energy. And notwithstanding some domestic disputes about costs and practical implementation, it enjoys broad multiparty and multi-sector commitment. However, Russia's 2022 war against Ukraine marks a turning point in Germany's energy politics. We examine the war's repercussions on the Energiewende discourse drawing on newspaper articles, tweets, talk shows, and parliamentary speeches published shortly after the beginning of the war. We show that economic, environmental, and technological considerations become complicated by a new emphasis on security, freedom, and sovereignty. We identify four discursive shifts caused by this turn to geopolitics: 1) There is renewed controversy about whether gas imports slowed down the Energiewende or were necessary to support it. This weakens the discursive consensus on the desirability of the Energiewende. 2) In light of the new moral imperative for reducing dependence on Russian gas, the ecological modernization paradigm is challenged. 3) Lignite, nuclear power, and LNG are in contradiction to the goals of the Energiewende, but gain popularity as bridging technologies because they promise to increase supply security. 4) At the same time, additional funding for, and an accelerated implementation of renewable energy is justified by the new emphasis on security, freedom, and sovereignty. While it is too early to tell whether those discursive shifts will overall strengthen or weaken Germany's energy transition in the long run, they are important to understand political conflicts about the future of the project and its international repercussions.

Limiting Heating & Cooling Peak Loads for Net Zero Carbon Buildings

Limiting peak heating and cooling loads is an important factor in net zero carbon building in relation to renewable energy implementation, load shifting, etc. Passive and active measures are necessary to limit or shift peak loads in net zero carbon buildings. With the increasing demand for more sustainable and energy-efficient buildings and services to combat climate change, weather data has now become an essential component of virtually every new building design and major refurbishment. In this study, dynamic simulation is used to predict the peak heating and cooling loads for an office building to understand the impact of different load estimate parameters on heating and cooling loads. This paper will discuss the impact of using different weather files, heat gains and shading on the peak loads. It also provided guidance to minimise heat peak loads spikes.

Harnessing Renewable Energy for Sustainable Urban Development: Case Studies from the MENA Region

This study examines the potential of renewable energy for sustainable urban development in the Middle East and North Africa (MENA) region, focusing on key case studies such as Masdar City (UAE), the Noor Sour Complex (Morocco), and the Egyptian Gulf of Suez Wind Energy Project. The crisis narrative addresses the MENA region’s increasing reliance on fossil fuels, increasing energy demand due to rapid urbanization, and the environmental and economic challenges associated with energy of commonly used sources. The study aims to assess how renewable energy can be incorporated into urban planning to meet growing energy needs while reducing environmental impact and improving energy security. The study examines the geographical advantages of the MENA region, such as the abundance of solar and wind energy, highlighting the success of renewable energy as well as identifying the main barriers to the implementation of renewable energy, including high upfront costs, fossil fuel subsidies, policy inconsistencies, restrictions -and public awareness. The results indicate that although this region has the potential to exploit more renewable energy sources, overcoming economic, technical and social challenges are needed for greater adoption The study provides recommendations a it is used to strengthen regional policies, encourage investment, encourage technological innovation and ends.

Design and analysis of semi-submersible offshore floating wind and photovoltaic platforms

The ocean holds excellent potential for green energy, and the sea can provide green energy to humans. For offshore structures and green energy development, the current floating offshore system has a single function and cannot fully utilize green energy. Therefore, this paper combines the development of wind and solar power to design a floating offshore structure. The report determined the configuration design of the platform and decided to choose a semi-submersible platform, select the type and size of wind turbine and photovoltaic panel models, calculate the wind load and wave load that the platform is subjected to, and finally calculate the cost of the forum. The wind load on a single wind turbine is estimated to be 26590.14N, and the wind load on all PV panels is 216180N, costing about 18487 RMB/kW. In this paper, the close combination of photovoltaic and wind power generation can guarantee the effective implementation of renewable energy and then improve the wind power generation and photovoltaic power generation application system based on the effective combination of the two.

Involving Citizens in Heat Planning: A Participatory Process Design for Informed Decision-Making

Participatory energy planning at the local level engages citizens, builds legitimacy and trust, and increases successful implementation of renewable energies. In the context of heat planning, technology choices highly vary depending on the local context and social conditions and including social input therefore benefits the planning process. This research adds to the current literature, which lacks concrete examples and verified approaches that clarify what the guiding principles of participatory energy planning are and how the opportunities and challenges can be dealt with. This paper elaborates on these opportunities and challenges and proposes a process design, using multiple tools (a survey, an Information-choice Questionnaire, and workshops) to collect the social input that is necessary to make technology choices in a participatory manner. The process design is applied and tested in a case study of a Dutch neighbourhood and lessons learned are drafted as a basis for further research.

On the Sublimation of Dry-Ice: Experimental Investigation and Thermal Modelling of Low-Temperatures on a Sandy Soil

In the last decade, growing awareness about CO2 emissions is supporting the authorities in a more sustainable society. The proposed solutions embrace different topics, such as renewable energy implementation, lower waste production, and carbon capture and storage technologies (CCS). The latter is based upon the best available knowledge about the thermophysical properties of CO2, which are not always satisfactory for its complete characterization. In this work, it is investigated the interaction of the CO2 in solid phase (dry-ice) with sandy soil, a phenomenon that can potentially occur following pipeline ruptures. An experimental setup and a numerical model have been developed to measure and validate the temperature profiles beneath the dry-ice bank at steady-state conditions. The model has been validated with the experimental data by defining a suitable range of the thermal conductivity at the solid phase (0.25–0.30 W m−1 K−1) that led to the best match (deviation of 7.81%). Finally, the overall heat transfer coefficient (85.56–86.35 W m−2 K−1) has been numerically calculated.

Capacity Needs Assessment for Implementation of Renewable Energy and Energy Efficiency in the Cardamom Value Chain of Nepal's Mountain Regions: Results of a Survey Study

The HKH region presents an immense opportunity for implementing decentralized, sustainable energy solutions that rely on renewable energy sources. However, the region remains vulnerable to energy poverty due to inadequate capacity at various levels for deploying renewable energy and energy efficiency (RE&EE) solutions in mountainous areas. To achieve sustainable economic, social, and environmental performance, a thorough understanding of capacity development in RE&EE deployment within the value chain concept is crucial. This paper introduces a capacity needs assessment framework for the mountainous context, which was developed and applied to Nepal's cardamom value chain to explore the interplay of different core capabilities at individual and organizational levels. The survey study aimed to identify the specific capacity requirements necessary for the effective deployment of RE&EE solutions in the cardamom value chain. The analysis revealed significant capacity development needs on core capabilities affecting RE&EE deployment within the value chain, including technical skills, knowledge transfer, institutional strengthening, and policy development. The study also identifies challenges encountered when implementing RE&EE solutions in the cardamom value chain, such as financial constraints, technical challenges, and lack of awareness and education. Based on the study's findings, policymakers can design and implement effective capacity development initiatives that address the identified gaps and challenges and promote the deployment and implementation of RE&EE solutions in Nepal's mountain regions. This framework's applicability can extend to other value chains, such as tourism, dairy, poultry, and transportation sectors, by considering appropriate study dimensions and key indicators for value chain analysis.

A Review of Renewable Energy and Storage Technologies for Automotive Applications

Review A Review of Renewable Energy and Storage Technologies for Automotive Applications Xiangnan Yu 1, Yuhai Jin 1, Heli Liu 1, Arnav Rai 1, Michelle Kostin 1, Dimitrios Chantzis 1, Denis J. Politis 2, and Liliang Wang 1,* 1 Department of Mechanical Engineering, Imperial College London, London SW7 2AZ, UK 2 Department of Mechanical and Manufacturing Engineering, University of Cyprus, Nicosia, 1678, Cyprus * Correspondence: liliang.wang@imperial.ac.uk Received: 29 September 2022 Accepted: 9 November 2022 Published: 25 December 2022 Abstract: Transportation, as the backbone of the modern economy, continues to be a significant contributing factor to environmental pollution and poor air quality. Whilst numerous efforts have been made to address energy consumption and emissions through the manufacturing and end use stages, the use of fossil fuels continues to grow at an exponential rate. A key target area to assist with fuel consumption reduction targets is the implementation of renewable energy combined with energy storage technologies. The aim of this review is to investigate various means of production for renewable energy and energy storage technologies with the specific focus on the automotive industry.

Who, How and How Far? Renewable Energy Transitions in Industrialized and Emerging Countries

The purpose of this paper is to analyze the current implementation status of renewable energy projects, analyzing not only the five country leaders during the last decade, in terms of their installed capacity, but also a set of emerging countries playing an important role at regional levels (the who of energy transitions), the sources of green energy that they have chosen (how the transitions are being done), and the trends in greenhouse gas reduction that they have achieved (how far the transitions have progressed). Calculations based on various statistical sources—mainly the International Renewable Energy Agency (IRENA)—show that, while renewable energy installed capacity and implementation of renewable energy (RE) projects have grown in China, they have decreased to differing extents during the last ten years in the four other countries among the top five leaders in renewables (the US, Brazil, Germany and Canada). On the other hand, some non-industrialized countries have emerged in the regional renewable energy scene, and although they still do not stand out globally, they do play a significant role. In fact, in terms of transition toward a renewable energy matrix, the data shows that industrialized/high-GDP countries have made less progress at the national level than emerging ones. Regarding CO2 emissions, there are contrasting trends among the latter set of countries; however, the data analysis also shows that although economic growth negatively affects the decrease of CO2 emissions, individual energy consumption patterns might have an even greater positive impact in reducing emissions; current data from the US, China, Iran and the United Arab Emirates are good examples.

Evolution, Challenges, and Perspective in the Implementation of Projects with Renewable Energy Sources: Colombia Case

This work quantifies the evolution in the implementation and development of renewable energies in Colombia, as well as evidence the current challenges and development prospects. The high demand for electricity in Colombia is increasing due to the great increase in population, industry and commerce, which generates greater energy consumption and as a consequence economic, social and environmental problems. The objective of this study was to analyze the behavior of the energy projects submitted to the Mining Energy Planning Group (UPME) during the last 15 years until July 2022, as well as to study the research areas with the highest performance. technology and the corresponding radiation intensity. In addition, it shows an historic information about the projects presented both not in force as of the date of closing of this investigation, classified according to their source, according to their range of power and according to its stage of implementation, finally, we made a synthesis of the new regulations governing the motivation and implementation of projects with renewable energy sources, being as this work a very good source of reference for further studies of the implementation of renewable energy sources in Colombia.

Challenges in Implementing Renewable Energy Sources in Azerbaijan

The gradual reduction of fuel resources, their depletion, as well as volatility of fuel prices led to a growing interest of countries in the use of renewable energy sources. Despite the fact that energy production in Azerbaijan currently largely depends on development of hydrocarbon reserves in the country, nevertheless, development of renewable energy sources is certainly one of the strategic priorities of the government. The main objective of the research is to study the economic problems and institutional aspects of introduction of alternative energy in Azerbaijan and develop recommendations to stimulate production of renewable energy. With the help of methods of comparative analysis and dynamic comparisons, the state of development of alternative and renewable sources in Azerbaijan was analyzed. The results of the study show that in order to increase the production of renewable energy it is necessary to take a number of measures in this area: improve legislation, introduce state incentives for consumers of alternative energy, apply a green tariff to attract investment, ensure transparency and consistency of energy policy.

Photovoltaic Energy Production Forecasting through Machine Learning Methods: A Scottish Solar Farm Case Study

Photovoltaic solar energy is booming due to the continuous improvement in photovoltaic panel efficiency along with a downward trend in production costs. In addition, the European Union is committed to easing the implementation of renewable energy in many companies in order to obtain funding to install their own panels. Nonetheless, the nature of solar energy is intermittent and uncontrollable. This leads us to an uncertain scenario which may cause instability in photovoltaic systems. This research addresses this problem by implementing intelligent models to predict the production of solar energy. Real data from a solar farm in Scotland was utilized in this study. Finally, the models were able to accurately predict the energy to be produced in the next hour using historical information as predictor variables.

Comprehensive Life Cycle Assessment Analysis of an Italian Composting Facility concerning Environmental Footprint Minimization and Renewable Energy Integration

The present paper aims to investigate the environmental impacts of a real municipal solid waste management facility operating in Italy including two power units, i.e., a combined heat and power system and an internal combustion engine, fed by the biogas produced from anaerobic digestion and waste disposal in sanitary landfill. The Life Cycle Assessment study is carried out in Simapro 9.1.1.7 and, in addition to the base case scenario, the implementation of additional renewable energy and circular economy solutions is evaluated. More precisely a PV plant on the roof of the anaerobic digesters section and the use of plastic and paper residues in a gasification process for additional heat and power production are considered. The main outcomes of the simulations demonstrate the following: (i) the benefits in terms of energy and fuel savings provided by the two power units; (ii) the environmental impact reduction due to the compost obtained from the anaerobic digestion of the organic waste as potential fertilizer; (iii) a potential power capacity of 2 MW through the gasification of the plastic and paper residues. With reference to the latter, despite bringing an increase of the carbon emissions (+48%) compared to the base case, it could contribute to reach higher environmental standards for MSW composting facilities.

Social and Ecological Impacts of Marine Energy Development in Malaysia

The excessive usage of fossil fuels in Malaysia is increasing yearly to meet the increasing domestic demands. However, this will impact the environment as fossil fuels will emit hazardous gases into the atmosphere. The development of marine energy in Malaysia is still in early periods compared with China, the U.K, and America. Notably, the impact of marine energy extraction on shallow water regions is not yet fully understood, such as the changes in the topography, the effect on marine life, and the cost of development and maintenance for tidal stream energy. This paper is focused on the social and ecological impact of potential marine energy development in Malaysia. Significantly, this study relies on published data to analyse and identify potential sites for harnessing tidal stream energy. Numerical calculation shows that the coastal region receives higher available energy compared to the deep sea. Three sites are found to be the best location for tidal energy exploration in Malaysia, namely Pangkor Island, Port Klang, and the Malacca coastline. From these three sites, the available energy per year for Pangkor Island is 193.668 MWh, while for Port Klang and Malacca coastline are at 241.66 MWh, and 433 MWh respectively. Apart from the economical aspect, the social aspect of tidal energy exploration is also examined. The purpose of the Renewable Energy Act 2011 and Electricity Supply Act 1990 is to ensure proper legislation for the implementation of marine renewable energy in Malaysia, specifically regarding zones of the ocean, licensing, and installation requirements.

АНАЛІЗ ПРИВАБЛИВОСТІ ВІДНОВЛЮВАНОЇ ЕНЕРГЕТИКИ В ОКРЕМИХ КРАЇНАХ

The increasing importance of crises, such as the crisis caused by russia's invasion of Ukraine, has a significant impact on the formulation of policies for energy development in this area and the use of renewable energy sources. This issue is especially relevant for states that depend on energy supplies from other countries or have transit flows of resources on their territory. This article aims to analyze the experience of individual countries concerning the development of renewable energy and determine future directions and practical recommendations for Ukraine's development of green energy. Subject of study. The subject of the study is the process of transformation of energy policy based on the use of alternative energy sources in different regions of the world. The methodological basis and information base of the research are legislative and regulatory documentation, current scientific and applied research, and statistical information. The article uses a number of methods, including analysis, synthesis, comparison and generalization. Socio-economic processes of renewable energy policy formation were studied in dynamics. A tabular format is used to compile the data to improve clarity. Also, the research was conducted in accordance with the features of the system approach and structural-functional analysis. The hypothesis of the study dealt with the possibility of using the experience of obtaining significant results in the development of renewable energy in certain parts of the world to develop the appropriate policy in Ukraine. Presenting main material. Groups of countries with the existing potential of solar, wind and hydrogen energy, and a separate group of countries that, due to climatic conditions and economic opportunities, can implement several types of alternative energy, are highlighted. In terms of the beginning of military activities and the destruction of a significant part of the energy infrastructure, Ukraine has to assist in the development of alternative energy sources such as wind, water and solar power. The originality and practical significance of the study is due to the analysis of the development processes of renewable energy, taking into account the characteristics of different countries. Research conducted and practical recommendations developed provide an opportunity to contribute to the formulation of policy for development of the Ukrainian economy during this period of crisis and post-crisis. Conclusions. Among the studied world leaders in the implementation of renewable energy, groups of countries with the existing potential of solar, wind and hydrogen energy, and a group of countries that, due to climatic conditions and economic opportunities, can implement several types of alternative energy should be singled out.

Understanding Aqueous Organic Redox Flow Batteries: A Guided Experimental Tour from Components Characterization to Final Assembly

The implementation of renewable energies into the electrical grid is one of our best options to mitigate the climate change. Redox flow batteries (RFB) are one of the most promising candidates for energy storage due to their scalability, durability and low cost. Despite this, just few studies have explained the basic concepts of RFBs and even fewer have reviewed the experimental conditions that are crucial for their development. This work aspired to be a helpful guide for beginner researchers who want to work in this exciting field. This guided tour aimed to clearly explain all the components and parameters of RFBs. Using a well-studied chemistry of anthraquinone (AQDS)-based anolyte and Na4[Fe(CN)6] catholyte, different techniques for the characterization of RFBs were described. The effects of some experimental parameters on battery performance such as electrolyte pH, O2 presence, membrane pretreatment and the capacity limiting side, were demonstrated. Furthermore, this analysis served to introduce different electrochemical techniques, i.e., load curve measurements, electrochemical impedance spectroscopy and charge–discharge cycling tests. This work aimed to be the nexus between the basic concepts and the first experimental steps in the RFB field merging theory and experimental data.

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