scholarly journals Modelling and Environmental Assessment of a Stand-Alone Micro-Grid System in a Mountain Hut Using Renewables

Energies ◽  
2021 ◽  
Vol 15 (1) ◽  
pp. 202
Author(s):  
Mitja Mori ◽  
Manuel Gutiérrez ◽  
Mihael Sekavčnik ◽  
Boštjan Drobnič
Keyword(s):  
Renewable Energy ◽  
Environmental Impacts ◽  
Energy Demand ◽  
Electricity Generation ◽  
Fossil Fuels ◽  
Renewable Energy Sources ◽  
Energy Sources ◽  
Minor Effect ◽  
Lifecycle Assessment ◽  
Micro Grid

Mountain huts are stand-alone micro-grid systems that are not connected to a power grid. However, they impact the environment by generating electricity and through day-to-day operations. The installed generator needs to be flexible to cover fluctuations in the energy demand. Replacing fossil fuels with renewable energy sources presents a challenge when it comes to balancing electricity generation and consumption. This paper presents an integration-and-optimization process for renewable energy sources in a mountain hut’s electricity generation system combined with a lifecycle assessment. A custom computational model was developed, validated with experimental data and integrated into a TRNSYS model. Five different electricity generation topologies were modelled to find the best configuration that matches the dynamics and meets the cumulative electricity demand. A lifecycle assessment methodology was used to evaluate the environmental impacts of all the topologies for one typical operating year. The carbon footprint could be reduced by 34% in the case of the actually implemented system upgrade, and by up to 47% in the case of 100% renewable electricity generation. An investment cost analysis shows that improving the battery charging strategy has a minor effect on the payback time, but it can significantly reduce the environmental impacts.

scholarly journals Development of a Micro grid with Renewable Energy Sources with Feedback Controller

2019 ◽  
Vol 8 (11) ◽  
pp. 2014-2018
Keyword(s):  
Renewable Energy ◽  
Electricity Generation ◽  
Low Cost ◽  
Renewable Energy Sources ◽  
Electrical Power ◽  
Energy Sources ◽  
Military Operations ◽  
Urban Centers ◽  
Industrial Projects ◽  
Micro Grid

To make micro grid with renewable energy and to over come the technical challenges and economy base and policy and regulatory challenges . From the natural wastage we can generate the Electricity. Thus, the Electrical Power or Electricity is available with a low cost and pollution free to anyplace in the world at all times. This process divulge a unequaled step in electricity generation and this type of generation is maintain the ecological balance. We can have an uninterrupted power supply irrespective of the natural condition without any kind of environmental pollution. More influence this process relent the less production cost for electricity generation. Micro grids have long been used in remote areas to power off-grid villages, military operations or industrial projects. But increasingly they are being used in cities or towns, in urban centers. Here we try a proto type of micro grid with renewable energy sources.

scholarly journals Potential of Renewable Energy Sources usage in an energy demand of a single-family houses neighbourhood, constituting an Energy Cluster – a case study

2020 ◽  
Vol 172 ◽  
pp. 25004
Author(s):  
Marcin Zygmunt ◽  
Dariusz Gawin
Keyword(s):  
Renewable Energy ◽  
Energy Demand ◽  
Fossil Fuels ◽  
Renewable Energy Sources ◽  
Energy Sources ◽  
Building Energy Efficiency ◽  
Single Family ◽  
Continuous Growth ◽  
Profitability Analysis ◽  
Energy Cluster

Worldwide policy referring to global warming and air pollution assumes several main guidelines, in which Renewable Energy Sources (RES) usage simultaneously with limitation of fossil fuels in energy production seems to be a major goal. Nowadays, the continuous growth of RES usage within final energy consumption is becoming an obvious part of many country’s development. Adding to that relentless pursuit for improvement of building energy efficiency results in prediction, that in nearest future one should expect the development of advanced city-scale areas constituting an Energy Cluster. The paradigm of Energy Cluster (EC) allows us to define an energy flexibility neighbourhood. This article presents the results of energy analysis of a model neighbourhood of single-family houses with possible usage of RES. The neighbourhood constituting an EC was defined considering the Polish household sector statistical study. The analyzed area consists of representative single-family houses of Poland, characterized by different built periods, building shape and geometry as well as building enclosure parameters. Within the analysis, a detailed examination of a defined EC was performed by means of TEAC – computer tool developed by authors. TEAC is based on the results of energy simulations obtained by means of Energy Plus software and Artificial Neural Network (ANN) usage. Artificial Intelligence (AI) was used for energy demand predictions of buildings. Among possible RES a detailed analysis of solar and wind energy usage was performed. As a result, we obtained an hourly energy demand space- and time distribution, RES outputs, ecological analysis concerning greenhouse gasses emission and profitability analysis of proposed modernizations for the neighbourhood.

scholarly journals Paris Climate Summit and Turkey's Renewable Energy Policies

2016 ◽  
Vol 13 (1) ◽  
pp. 54-71
Author(s):  
Füsun Çelebi Boz ◽  
Turgut Bayramoğlu
Keyword(s):  
Renewable Energy ◽  
Energy Demand ◽  
Fossil Fuels ◽  
Greenhouse Gas Emission ◽  
Human Life ◽  
Renewable Energy Sources ◽  
Energy Sources ◽  
Low Carbon ◽  
Energy Policies ◽  
Negative Effects

Abstract The increase in population and urbanization which emerged together with industrialization have brought the increase in energy demand with them. Carbon emissions rise as a result of the increase in energy demand and lead to climate change. Such changes in climate have negative effects on not only the environment but human life as well. Therefore, countries should implement energy policies with low carbon density in order to reduce greenhouse gas emission. In this context, preferring renewable energy sources can prevent temperature increase by reducing the effects of fossil fuels on the environment. Turkey should attach importance to renewable energy sources and invest in these sources in accordance with the commitments accepted at the Paris Climate Summit in order to reduce carbon emission.

Large-scale electricity storage utilizing reversible solid oxide cells combined with underground storage of CO2 and CH4

2015 ◽  
Vol 8 (8) ◽  
pp. 2471-2479 ◽  
Author(s):  
S. H. Jensen ◽  
C. Graves ◽  
M. Mogensen ◽  
C. Wendel ◽  
R. Braun ◽  
...  
Keyword(s):  
Renewable Energy ◽  
Electricity Generation ◽  
Large Scale ◽  
Fossil Fuels ◽  
Solar Power ◽  
Renewable Energy Sources ◽  
Solid Oxide ◽  
Energy Sources ◽  
Underground Storage ◽  
Electricity Storage

Electricity storage is needed on an unprecedented scale to sustain the ongoing transition of electricity generation from fossil fuels to intermittent renewable energy sources like wind and solar power.

Integrative Analysis of Non-Renewable and Renewable Energy Sources for Electricity Generation in U.S.: Demand and Supply Factors, Environmental Risks and Policy Evaluation

2010 ◽  
Author(s):  
Ramesh Agarwal ◽  
Ping Wang ◽  
Lee Chusak
Keyword(s):  
Renewable Energy ◽  
Electricity Generation ◽  
Fossil Fuels ◽  
Renewable Energy Sources ◽  
Supply And Demand ◽  
Energy Sources ◽  
Electricity Supply ◽  
Energy Prices ◽  
Biomass Waste ◽  
Demand And Supply

An equilibrium economic model for policy evaluation related to electricity generation has been developed; the model takes into account the non-renewable and renewable energy sources, demand and supply factors and environmental constraints. The non-renewable energy sources include three types of fossil fuels: coal, natural gas and petroleum, and renewable energy sources include nuclear, hydraulic, wind, solar photovoltaic, biomass wood, biomass waste and geothermal. Energy demand sectors include households, industrial manufacturing and commercial enterprises (non-manufacturing businesses such as software firms, banks, restaurants, service organizations, universities, etc.). Energy supply takes into account the electricity delivered to the consumer by the utility companies at a certain price which maybe different for retail and wholesale customers. Environmental risks primarily take into account the CO2 generation from fossil fuels. The model takes into account the employment in various sectors and labor supply and demand. Detailed electricity supply and demand data, electricity cost data, employment data in various sectors and CO2 generation data are collected for a period of seventeen years from 1990 to 2006 in U.S. The model is calibrated for the aggregate data. The calibrated model is then employed for policy analysis experiments if a switch is made in sources of electricity generation, namely from fossil fuels to renewable energy sources. As an example, we consider a switch of 10% of electricity generation from coal to 5% from wind, 3% from solar photovoltaic, 1% from biomass wood and 1% from biomass waste. It should be noted that the cost of electricity generation from different sources is different and is taken into account. The consequences of this switch on supply and demand, employment, wages, and emissions are obtained from the economic model under three scenarios: (1) energy prices are fully regulated, (2) energy prices are fully adjusted with electricity supply fixed, and (3) energy prices and electricity supply both are fully adjusted.

scholarly journals Towards Green, Enhanced Photocatalysts for Hydrogen Evolution

Catalysts ◽  
2021 ◽  
Vol 11 (1) ◽  
pp. 93
Author(s):  
Antonella Profumo ◽  
Andrea Speltini
Keyword(s):  
Renewable Energy ◽  
Adverse Effects ◽  
Hydrogen Evolution ◽  
Energy Demand ◽  
Fossil Fuels ◽  
Renewable Energy Sources ◽  
Global Environment ◽  
Energy Sources ◽  
Constant Growth

The constant growth of energy demand joined with the adverse effects on the global environment induced by use of fossil fuels is increasingly requiring new routes to obtain clean and renewable energy sources [...]

scholarly journals Potential of Renewable Energy Sources in Gökçeada Turkey

2014 ◽  
Author(s):  
Ümran Şengül ◽  
Sibel Tan ◽  
Şermin Atak ◽  
Ahmet Bilal Şengül
Keyword(s):  
Renewable Energy ◽  
Energy Demand ◽  
Fossil Fuels ◽  
Renewable Energy Sources ◽  
Population Increase ◽  
Energy Sources ◽  
Energy Potential ◽  
Goods And Services ◽  
Energy Evaluation ◽  
Harmful Emissions

Energy is the ability to do work and life is the source of life. In parallel to the increase of population increase in the production of goods and services are increasingly in demand for energy. Evaluation of all sources of energy that can be produced now it has become very necessary. Widely used in meeting the energy demand of fossil fuels (oil, gas, coal) are limited energy resources and emissions are more harmful emissions. Spread of harmful emissions lessened even the most important problems is that they will end done day. From this perspective, the assessment of renewable energy sources in the world is an important issue. Gökçeada, Turkey is the largest island and the hills and plains lined one after the other, with a rugged structure consists of volcanic mass. Gökçeada consists of 77% mountainous, 12 % hilly and 11% plains and in terms of wind energy, which is the region with the greatest potential in Turkey. However, in terms of Gökçeada development index the least developed regions in the sixth regions, which is located in class. From this perspective, in this study, which will provide an important contribution to the region development of renewable energy sources wind, solar, tidal and renewable, biofuels and Hydraulics energy potential and capacity were investigated. Based on the data obtained, recommendations are made to invest in the renewable energy sector.

Renewable Energy Sources,Technologies and Protection Challenges in Indian Context:A Comprehensive Review

2021 ◽  
pp. 6332-6346
Author(s):  
Anjan Kumar Sahoo,Girija Sankar Panigrahi, Krushna Keshab Baral, Sudhansu Kumar Samal
Keyword(s):  
Renewable Energy ◽  
Electricity Generation ◽  
Fossil Fuels ◽  
Economic Condition ◽  
Renewable Energy Sources ◽  
Energy Sources ◽  
Environment Friendly ◽  
Indian Context ◽  
Populous Country

The prime requirement for the improvement of quality of life and the socio-economic condition of any nation is the clean and environment friendly energy harvesting. India, the 2nd highest populous country with a population of 1.39 billion is one of the largest consumers of using fossil fuels in the world. Limited availability of the fossil fuels may obstruct the future socio-economic development. Hence India government motivates the use of renewable energy sources. The renewable energy sources like solar, wind and biomass etc will never diminish their availability. Sunlight is used to meet ever increasing energy need. The literature analysis shows that in India fossil fuels still continues to contribute 80% and renewable energy sources around 20% of the total electricity generation. It is now of prime importance to focus on the technologies and the protection challenges of renewable energy sources in Indian context. The author has reviewed more than 300 research articles and presented various analysis reports. This will definitely help the researchers to find the lacuna behind less contribution of the renewable energy sources.

scholarly journals A Multicriteria Decision-Making Model for the Selection of Suitable Renewable Energy Sources

Mathematics ◽  
2021 ◽  
Vol 9 (12) ◽  
pp. 1318
Author(s):  
Chia-Nan Wang ◽  
Jui-Chung Kao ◽  
Yen-Hui Wang ◽  
Van Thanh Nguyen ◽  
Viet Tinh Nguyen ◽  
...  
Keyword(s):  
Decision Making ◽  
Renewable Energy ◽  
Energy Demand ◽  
Fossil Fuels ◽  
Renewable Energy Sources ◽  
Energy Resource ◽  
Energy Sources ◽  
New Production ◽  
Decision Making Model ◽  
Selection Of

With the expansion of its industrial and manufacturing sectors, with the goal of positioning Vietnam as the world’s new production hub, Vietnam is forecast to face a surge in energy demand. Today, the main source of energy of Vietnam is fossil fuels, which are not environmentally friendly and are rapidly depleting. The speed of extraction and consumption of fossil fuels is too fast, causing them to become increasingly scarce and gradually depleted. Renewable energy options, such as solar, wind, hydro electrical, and biomass, can be considered as sustainable alternatives to fossil fuels. However, to ensure the effectiveness of renewable energy development initiatives, technological, economic, and environmental must be taken in consideration when choosing a suitable renewable energy resource. In this research, the authors present a multi-criteria decision-making model (MCDM) implementing the grey analytic hierarchy process (G-AHP) method and the weighted aggregates sum product assessment (WASPAS) method for the selection of optimal renewable energy sources for the energy sector of Vietnam. The results of the proposed model have determined that solar energy is the optimal source of renewable energy with a performance score of 0.8822, followed by wind (0.8766), biomass (0.8488), and solid waste energy (0.8135) based on the calculations of the aforementioned methods.

Nigeria: Advancing the Cause of Renewable Energy in Nigeria’s Power Sector Through its Legal Framework

2021 ◽  
Vol 50 (4-5) ◽  
pp. 433-444
Author(s):  
Olusola Joshua Olujobi ◽  
Temilola Olusola-Olujobi
Keyword(s):  
Renewable Energy ◽  
Fossil Fuels ◽  
Renewable Energy Sources ◽  
Legal Framework ◽  
Comparative Approach ◽  
Energy Sources ◽  
Power Sector ◽  
Alternative Source ◽  
Regulatory Policies ◽  
Oil Sector

Fossil fuels have been the mainstream of energy supply and a major source of foreign exchange earnings for the Federal Government of Nigeria, in spite of being an unrenewable and unsustainable source of energy. Nigeria is yet to tap into the full benefits after privatising its power sector, including the new global evolution in the energy sector and the resulting increasing demand for renewable energy sources, which some consider to be cheaper and more environmentally friendly than fossil fuels and their allied products. Energy security is a challenge to socio-economic development in Nigeria, due to the country’s over-dependency on fossil fuels. In terms of their impact and the potentials to preserve energy sources for longevity and sustainability, however, fossil fuels will come to be seen as an out-dated alternative in the power sector as the energy industry evolves. The implications for Nigeria’s oil sector will not be limited to dwindling crude oil prices. The concerns include poor energy utilisation in Nigeria and the need to promote energy efficiency and sustainability. They have led to the formulation of new energy policies around the world to serve as a vehicle for translating solutions into reality. This study has adopted a library-based legal research method with a comparative approach. The study reveals that it is the lack of a coherent legal framework with incentives for using renewable energy that is largely seen as the key issue causing slow uptake of renewable energy as an alternative source of energy in Nigeria. As well as the need for a coherent legal framework on energy and incentives for using renewable energy sources, the study advocates stringent enforcement of existing energy regulatory policies.

Sign in / Sign up

Export Citation Format

Share Document