scholarly journals Sustainable Energy Autarky and the Evolution of German Bioenergy Villages

2019 ◽  
Vol 11 (18) ◽  
pp. 4996
Author(s):  
Dariusz Pieńkowski ◽  
Wojciech Zbaraszewski
Keyword(s):  
Sustainable Development ◽  
Renewable Resources ◽  
Sustainable Energy ◽  
Energy Systems ◽  
Energy System ◽  
Global Perspective ◽  
Energy Resources ◽  
Renewable Energy Resources ◽  
Closed Economies ◽  
Sustainable Energy System

The concept of an autarky has a long history and meaning related to its negation and unpopularity. In liberal schools of economics, autarky is usually considered from the perspectives of economic trade protectionism, closed economies, and threats to welfare. Nevertheless, the concept of autarky has gained a new meaning, understood as the local utilization of renewable energy resources from the perspective of their inter- and intragenerational distribution. Local action is shaped by the global perspective. This research consists of three steps. First, a model of energy autarky has been offered based on the system theory. The model shows the variety of the structures and features of energy systems offered in today’s debates on energy autarky. Second, the key postulates of sustainable development have been presented to define an autarkical sustainable energy system. Finally, the concept of bioenergy villages in Germany has been presented to illustrate the approach to energy autarky. The research shows that the concept of autarky and single solutions, such as the use of renewable resources, are not themselves a success from the perspective of sustainable development; this misunderstanding is well illustrated by the evolution of the German concept of bioenergy villages into smart villages.

scholarly journals Assessment of sustainability of different renewable energy systems based on life cycle exergy analysis

Tehnika ◽  
2021 ◽  
Vol 76 (5) ◽  
pp. 595-602
Author(s):  
Branislav Petrović ◽  
Milan Gojak
Keyword(s):  
Sustainable Development ◽  
Renewable Energy ◽  
Life Cycle ◽  
Exergy Analysis ◽  
Sustainability Assessment ◽  
Energy Systems ◽  
Electrical Energy ◽  
Energy System ◽  
Renewable Energy Resources ◽  
System Sustainability

The sustainable development of energy systems does not only involve the use of renewable energy resources but the increase in their efficiency as well, enabling society to maximise the benefits of their consumption. The production of electrical energy from clean and renewable sources contributes to lowered fossil fuel exploitation and the reduction of its damaging effect on the environment. This is a way to reach the global target of sustainable development - striking a balance between resource consumption and the achievable natural cycle regeneration. Environmental protection is in the focus of attention. Namely, when energy system sustainability is assessed, in addition to the ecological sustainability assessment (based on life cycle analysis - LCA), attention should be paid to the decrease in energy quality in energy processes (exergy loss). This paper presents the thermodynamic approach to energy system sustainability assessment by applying life cycle exergy analysis (LCEA). The key issue is the assessment of systems which use sustainable energy sources: the wind turbine and the stand-alone photovoltaic solar system.

Design and analysis of grid-connected sustainable urban residential energy systems

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Deepak Kumar ◽  
Tavishi Tewary
Keyword(s):  
Sensitivity Analysis ◽  
Sustainable Energy ◽  
Energy Systems ◽  
Energy System ◽  
Energy Resources ◽  
Analysis Approach ◽  
Residential Energy ◽  
Load Profile ◽  
Content Type ◽  
Proposed Model

Purpose Earlier most of the research groups have designed and developed hybrid renewable energy system models with technological, scientific and industrial advancement for the energy systems, but slight attention has been paid towards the grid-connected sustainable urban residential energy systems (SUReS) for metropolitan cities. The current research wishes to design, model and analyze grid-connected energy system for residential applications for sustainable urban residential energy system. The works aims to explore the potential of the augmented energy system for grid-connected energy system. Design/methodology/approach The proposed grid-connected SUReS are validated for a sample location at New Delhi (India) with a hybrid optimization model for electric renewable (HOMER) software to define and understand the various load profile. It presents the sensitivity analysis approach to validate the design of the proposed energy system. Findings The obtained results reports the key barriers, proposed model and scenarios for sustainable urban energy system development. Research limitations/implications Similar approaches can be replicated to design and develop an independent, self-sustainable cleaner and environmental-friendly energy system in the future scenario for the extension of complex grid infrastructures. Practical implications It will assist the stakeholder in solving the complex urban sustainability issues raised due to the shortage of energy. Social implications It will offer a clean and environment friendly sustainable energy resources with reduced carbon emissions. It will benefit sustainable energy resources with a mix of challenges and opportunities, to suggest an approach for implementation of efficient energy policies to optimize the existing and forthcoming energy systems. Originality/value The current research offers a design and model to analyze grid-connected energy system sustainable urban residential applications. It explores the potential of the augmented energy system. The proposed model are validated for a sample location with HOMER simulation software to define and understand various scenarios of the multiple load profile. The work presents the sensitivity analysis approach to validate the proposed energy system.

scholarly journals Sustainable energy and fuels from biomass: a review focusing on hydrothermal biomass processing

2020 ◽  
Vol 4 (9) ◽  
pp. 4390-4414
Author(s):  
Koray Alper ◽  
Kubilay Tekin ◽  
Selhan Karagöz ◽  
Arthur J. Ragauskas
Keyword(s):  
Climate Change ◽  
Sustainable Development ◽  
Renewable Energy ◽  
Fossil Fuels ◽  
Sustainable Energy ◽  
Energy Resources ◽  
Renewable Energy Resources ◽  
Environmental Challenges ◽  
Biomass Processing

Fossil fuels must be replaced with renewable energy resources to ensure sustainable development, reduce the dependence on fossil fuels, address environmental challenges including climate change.

scholarly journals Validating Simulation Result of Solar Hybrid System for Domestic Consumers using HOMER Software

2019 ◽  
Vol 8 (11) ◽  
pp. 1428-1431
Keyword(s):  
Fossil Fuel ◽  
Energy Systems ◽  
Energy System ◽  
Energy Resources ◽  
Renewable Energy Resources ◽  
Hybrid Energy ◽  
Renewable Power ◽  
Viable Solution ◽  
Simulation Based ◽  
Optimum Utilization

Consumption of fossil fuel and its effect on the environment has become a major universal problem. It is therefore necessary to use renewable energy resources (RES) such as solar, wind, etc. to decrease dependency on conventional energy resources. Currently, solar rooftop PV hybrid energy systems are becoming popular to overcome with the disadvantages of conventional energy sources. This paper presents a simulation-based strategy with the help of HOMER software to control the optimum utilization of renewable hybrid energy system for private buildings where it helps to maximize the building’s renewable power ratio and minimizing complete net current costs and CO2 emissions so that it’s a viable solution to address to the power shortage and Greenhouse gas emissions. Finally, manual calculations measured with net-meter are being validated with HOMER software and the results are more accurate with a variation of 1%

scholarly journals Distributed Energy Systems and Energy Communities Under Negotiation

2021 ◽  
Vol 6 (1) ◽  
Author(s):  
Anna-Riikka Kojonsaari ◽  
Jenny Palm
Keyword(s):  
Distribution System ◽  
Information Technologies ◽  
Economies Of Scale ◽  
Planning Process ◽  
Sustainable Energy ◽  
Energy Systems ◽  
Energy System ◽  
Distributed Energy ◽  
Decentralized System ◽  
Sustainable Energy System

AbstractNew decentralized energy-generation technologies have turned economies of scale upside down while becoming more economically viable. At the same time, the increased penetration of information technologies has led to new opportunities to manage infrastructure in a less hierarchical, more flexible way. Together with citizen demands for control over energy, these two converging trends has put energy communities (ECs) on the agenda, potentially advancing the transition towards more sustainable energy systems, despite hindrances encountered on the way. This paper presents a case study of the planning process of a sustainable city district in Sweden, using participatory observations and interviews conducted with included stakeholders. We analyse how the included stakeholders has reasoned about establishing a sustainable energy system in the area, including a microgrid. The discussions on a microgrid comprised two parallel discourses, coexisting but seldomly explicitly confronted. The distribution system operator in the area promoted a distributed energy system (DES) solution, while the property developers opted for a microgrid organized more as a citizen energy community (CEC). We discuss why the CEC proponents so far has lost the battle of creating a community owned smart grid. We conclude that the different models, a DES and a CEC, comprise different values and an increased focus on energy communities could shift the transition pathway towards a more decentralized system involving other prioritise than just economical.

scholarly journals Recent Advances in the Analysis of Sustainable Energy Systems

Energies ◽  
2018 ◽  
Vol 11 (10) ◽  
pp. 2520 ◽  
Author(s):  
Francesco Calise ◽  
Mário Costa ◽  
Qiuwang Wang ◽  
Xiliang Zhang ◽  
Neven Duić
Keyword(s):  
Energy Efficiency ◽  
Sustainable Development ◽  
Energy Policy ◽  
Fossil Fuels ◽  
Sustainable Energy ◽  
Scientific Progress ◽  
District Heating ◽  
Energy Systems ◽  
Energy System ◽  
Smart Energy Systems

EU energy policy is more and more promoting a resilient, efficient and sustainable energy system. Several agreements have been signed in the last few months that set ambitious goals in terms of energy efficiency and emission reductions and to reduce the energy consumption in buildings. These actions are expected to fulfill the goals negotiated at the Paris Agreement in 2015. The successful development of this ambitious energy policy needs to be supported by scientific knowledge: a huge effort must be made in order to develop more efficient energy conversion technologies based both on renewables and fossil fuels. Similarly, researchers are also expected to work on the integration of conventional and novel systems, also taking into account the needs for the management of the novel energy systems in terms of energy storage and devices management. Therefore, a multi-disciplinary approach is required in order to achieve these goals. To ensure that the scientists belonging to the different disciplines are aware of the scientific progress in the other research areas, specific Conferences are periodically organized. One of the most popular conferences in this area is the Sustainable Development of Energy, Water and Environment Systems (SDEWES) Series Conference. The 12th Sustainable Development of Energy, Water and Environment Systems Conference was recently held in Dubrovnik, Croatia. The present Special Issue of Energies, specifically dedicated to the 12th SDEWES Conference, is focused on five main fields: energy policy and energy efficiency in smart energy systems, polygeneration and district heating, advanced combustion techniques and fuels, biomass and building efficiency.

scholarly journals Understanding the Current Energy Paradigm and Energy System Models for More Sustainable Energy System Development

Energies ◽  
2019 ◽  
Vol 12 (8) ◽  
pp. 1584 ◽  
Author(s):  
Spittler ◽  
Gladkykh ◽  
Diemer ◽  
Davidsdottir
Keyword(s):  
Sustainable Development ◽  
System Development ◽  
Sustainable Energy ◽  
Energy System ◽  
Framework Analysis ◽  
The Sustainable Development ◽  
System Models ◽  
Energy Modelling ◽  
Sustainable Energy System ◽  
Current Energy

This study contributes to a better understanding of where to place different energy modelling tools and support better decision-making related to the sustainable development of energy systems. It is argued that through the connection of the energy field and the field of sustainable development, the current energy paradigm—encompassing economic, environmental and social aspects—has emerged. This paper provides an analysis of different categories of existing energy system models and their ability to provide answers to questions arising from the current energy paradigm formulated within this study. The current energy paradigm and the relevant questions were defined by conducting conceptual framework analysis. The overarching question of the current paradigm asks how different energy pathways impact on the (sustainable) development of the energy system and overall (sustainable) development globally and nationally. A review of energy system models was conducted to analyse what questions of the current energy paradigm are addressed by which models. The results show that most models address aspects of the current energy paradigm but often in a simplified way. To answer some of the questions of the current energy paradigm in more depth and to get novel insights on sustainable energy system development, it might be necessary use complementary methods in addition to traditional energy modelling methodological approaches.

Why We Need High-tech Politics to Make Renewables a Success Story

Green ◽  
2013 ◽  
Vol 3 (1) ◽  
Author(s):  
Kathrin Goldammer ◽  
Ulrich Mans
Keyword(s):  
Renewable Energy ◽  
Sustainable Energy ◽  
Scale Up ◽  
Political Leadership ◽  
Energy Systems ◽  
Energy System ◽  
High Tech ◽  
Energy Infrastructure ◽  
Sustainable Energy System ◽  
The Way

AbstractWith the continued growth of renewable energy technologies, major changes are under way in a growing number of energy systems across the globe. Wind, solar, biomass, hydroelectric and geothermal solutions experience an impressive boom and have created a new business sector worth US$243 billion in 2011. This trend is not caused by recent breakthroughs in engineering; in fact most of the technology has been around for some time. The way we organize our energy infrastructure is not primarily a technical matter; it is above all a political decision. The scale-up of renewable energy supplies at the cost of today's fossil-fuel dominated energy infrastructure is a systemic transition from one technology regime to another and thus requires political leadership for setting the targets, guiding institutional change, freeing resources and deciding on the relevant regulations. Today's energy systems are based on well-established routines and – as any other existing societal arrangement – are governed by a certain degree of lock-in: because people are generally happy to do things the way they have done it in the past, they are unlikely to embrace change quickly. These “lock-ins” shape, to a large extent, the speed of change as well as the type of solutions required in order to leave behind what works for today in favor of what we want to work for tomorrow. This article provides an overview of recent developments in the energy systems in Germany, California and Japan. We show that in order to appreciate the dilemma's that arise when creating a more sustainable energy system, we need to understand the local political landscape and how it influences decision-making processes. Looking at the three regions, it becomes evident that the level of political leadership determines much of what technology can do to facilitate innovation in the field of sustainable energy.

Sign in / Sign up

Export Citation Format

Share Document