scholarly journals Mobile Off-Grid Energy Generation Unit for Temporary Energy Supply

2022 ◽  
Vol 12 (2) ◽  
pp. 673
Author(s):  
Anatolijs Borodinecs ◽  
Deniss Zajecs ◽  
Kristina Lebedeva ◽  
Raimonds Bogdanovics
Keyword(s):  
Energy Supply ◽  
Energy Systems ◽  
Energy Generation ◽  
Electricity Production ◽  
Pv System ◽  
Energy Unit ◽  
Climate Conditions ◽  
Energy Supply System ◽  
Study Results ◽  
Generation Unit

Temporary structures are being extensively used by emergency services (rescue, disaster relief, military response units), and other end-users requiring temporary mobile off-grid energy solutions for different purposes (event organization, vacation homes, summer camps, etc.). Yet energy systems for these purposes largely remain fossil-based (such as diesel generators). Although such energy systems are inexpensive, they are carbon intensive and inefficient. This study presents a methodology of simulating temporary shelter with access to an energy supply system through a mobile energy unit with renewable (PV) power supply systems to ensure on-site electricity production, as well as heating/cooling and ventilation. Digital modeling simulations have been performed for a simulated temporary shelter in different climate conditions incorporating different combinations of electricity generation systems with a fossil fuel-based solution and a PV system, using TRNSYS software. Study results show that the operation of a mobile energy generation unit can operate HVAC systems and generate electricity for temporary shelter occupants in off-grid solutions. The modeling results show that the use of a mobile energy generation unit can significantly reduce diesel consumption in temporary shelters from 54% annually (in Riga, Latvia) to 96 % annually (in Jerusalem, Israel). Furthermore, the output of PV-generated electricity is higher (in most cases) than the consumed electricity amount.

scholarly journals Coal energy systems of the future – innovative way of Ukraine’s energy development

2019 ◽  
Vol 109 ◽  
pp. 00126
Author(s):  
Mykola Zhykaliak ◽  
Viacheslav Lukinov
Keyword(s):  
Sustainable Development ◽  
Energy Supply ◽  
Energy Systems ◽  
Energy Development ◽  
Supply System ◽  
Future Generations ◽  
Energy Strategy ◽  
The Sustainable Development ◽  
Energy Supply System

The state of implementation of the main indicators of the energy strategy of Ukraine for the period until 2035 has been analyzed and innovative prospects for the sustainable development of the national fuel and energy complex for the long term have been substantiated, taking into account the structurally unified nationwide energy supply system and the interests of future generations and the environment.

scholarly journals Modeling of a Prosumer in Optimal Design Energy Systems Problem

2019 ◽  
Vol 102 ◽  
pp. 02001
Author(s):  
Evgeny Barakhtenko ◽  
Dmitry Sokolov ◽  
Veronica Tashlykova
Keyword(s):  
Optimal Design ◽  
Energy Supply ◽  
Energy Systems ◽  
Energy System ◽  
Economic Benefits ◽  
Supply System ◽  
Energy Supply System ◽  
District Energy ◽  
Integrated Energy Systems ◽  
Equipment Configuration

The conversion of existing energy systems to intelligent integrated energy systems can happen only if economic benefits due to introduction of the intelligent integrated energy systems will exceed required level of investments. Thus, it is necessary for every optimal design energy systems problem according to the purposes of the study to determine various aspects of equipment configuration, investment and a proposed unit commitment on a case-by-case basis. The studies, taking under consideration energy efficiency of renewable energy units, are particularly important as environmental safety standards are increasing. In the paper optimal design of prosumer energy supply system problem in the intelligent integrated energy system was investigated. For this purpose a super structure for an energy supply system includes different generating capacities with relevant power range. The superstructure for prosumer energy supply system consists of an electric boiler, a gas-fired boiler, a solar photo-voltaic, a solar heating system and a gas-fired CHP. An ability of district energy system to receive the excess generating energy is restricted by the constraints. The heat and electricity tariffs and the received to district energy supply system energy constraints are varying according to time period. As a result of this study, cost-effectiveness analysis of chosen equipment configuration was undertaken.

scholarly journals EUROPEAN AND UKRAINIAN IMPLEMENTATION EXPERIENCE ENERGY TECHNOLOGIES

2019 ◽  
pp. 108-113
Author(s):  
A. Yevdokymova ◽  
S. Kolosok ◽  
N. Petrenko
Keyword(s):  
Renewable Energy ◽  
Energy Supply ◽  
Renewable Energy Sources ◽  
Energy Systems ◽  
Energy Generation ◽  
Energy Sources ◽  
Energy Networks ◽  
Energy Technologies ◽  
Market Requirements ◽  
Smart Technologies

The paper considers the use of renewable energy sources, the economic efficiency of their full-scale implementation, the policies of European countries on the development of energy systems and domestic energy networks. Existing energy networks in most cases do not meet modern market requirements. First, it concerns energy supply based on the renewable energy sources as most of the electricity is supplied to the electric networks in a decentralized way and only then to the consumers. Therefore, the key tool for successful energy redistribution should be the expansion of powerful regional transmission networks and local distribution networks. At the same time, consumption and conventional energy generation should become more flexible to meet market requirements. The use of “smart technologies”, especially digitalization with the help of smart energy meters, should be the driving tool to create new economic opportunities and simplify the coordination of energy generation and consumption. The use of “smart technologies” for renewable energy should be the basis for the energy systems development in Ukraine. International practices indicate the effectiveness of these technologies. The main advantage of their implementation is the security of energy supply to consumers, which significantly reduces carbon dioxide emissions as well as technological energy losses in the electric grid. One more advantage is the optimization of existing energy systems and their intelligent automation that allows the efficient use of renewable energy sources, reduction of the transmission losses through networks, the increase of the stability level of electricity supplies, the reduction of the negative impact of energy systems on the environment and meeting consumers’ needs for reliable energy supply. Keywords: energy technologies, power grids, energy technologies, smart technologies, smart grids.

scholarly journals Feasibility of Utilizing Photovoltaics for Irrigation Purposes in Moamba, Mozambique

2021 ◽  
Vol 13 (19) ◽  
pp. 10998
Author(s):  
Arsénio José Mindú ◽  
Jó António Capece ◽  
Rui Esteves Araújo ◽  
Armando C. Oliveira
Keyword(s):  
Energy Systems ◽  
Environmental Benefits ◽  
Photovoltaic System ◽  
Pump Efficiency ◽  
Total System ◽  
Climate Data ◽  
Local Data ◽  
Pv System ◽  
Local Climate ◽  
Climate Conditions

Agriculture plays a significant role in the labor force and GDP of Mozambique. Nonetheless, the energy source massively used for water pumping in irrigation purposes is based on fossil fuels (diesel oil). Despite the water availability and fertile soils in Moamba, Mozambique, farmers struggle with the high cost of fuels used in the pumping systems. This study was sought to analyze the feasibility of utilizing a solar photovoltaic system as a means to reduce the environmental impact caused by the diesel pumps and simultaneously alleviate the expenses regarding the use of non-environmentally friendly technologies. Site observations and interviews were undertaken in order to obtain local data regarding the water demand, current energy systems costs and distances from the source to the irrigated fields. CLIMWAT 2.0 was used for climate data acquisition and analysis. The environmental benefits, the cost effectiveness and local climate conditions show that the PV system is feasible in Moamba. Furthermore, parameters such as hydraulic energy, incident solar energy, pump efficiency and total system efficiency were used to predict the performance of the system. The results obtained are important to analyze the implementation of such energy systems.

scholarly journals A Transnational Challenge – Energy Security

2021 ◽  
Vol 7 (1) ◽  
Author(s):  
Rita Parker
Keyword(s):  
Foreign Policy ◽  
Civil Society ◽  
Energy Security ◽  
Energy Supply ◽  
Energy Systems ◽  
Supply System ◽  
Major Influence ◽  
Security Issue ◽  
Energy Supply System ◽  
Nation States

Transnational challenges have added a level of complexity to international and national security as the geopolitical landscape adjusts and responds. Such challenges transcend individual borders to involve other nation-states regardless of whether they are willing or unwilling actors. One such transnational challenge is energy security and the resilience of the energy supply system. While energy is generally considered as a national issue associated with meeting the internal needs of a civil society, it is also part of a wider dynamic global system that is vulnerable to a number of factors and is a major influence in framing foreign policy stances. This paper addresses the linkage between energy security and foreign policy at both the state and international levels. It does this by examining some of the issues and challenges associated with energy as a transnational security issue and the ways it affects relations between nation-states. The focus of this paper is on petroleum-based fuel and gas, and on the security and resilience of the energy supply system. Given the ongoing dependence on these traditional forms of energy, it is argued that these energy systems need to be resilient so that, in turn, civil society is resilient and human security is enhanced. The paper explores some of the issues for the European Union (EU) including the resilience of its associated energy systems. The paper also considers issues that enhance or inhibit the resilience of the energy system with particular reference to the EU.

Developing a Web-based Application for Energy Supply Systems

2019 ◽  
Vol 2 (3) ◽  
pp. 164-169
Author(s):  
Mohammed Faza ◽  
Maulahikmah Galinium ◽  
Matthias Guenther
Keyword(s):  
Energy Supply ◽  
Power Plants ◽  
Acceptance Testing ◽  
Design Activity ◽  
Unit Testing ◽  
Validity Testing ◽  
Energy Supply System ◽  
Time Series Modelling ◽  
Supply Systems ◽  
Energy Supply Systems

An energy supply system consists of a system of power plants and transmission anddistribution systems that supply electrical energy. The present project is limited to the modellingof the generation system. Its objective is the design and implementation of a web-basedapplication for simulating energy supply systems using the Laravel framework. The projectfocuses on six modules representing geothermal energy, solar energy, biopower, hydropower,storage, and fossil-based energy that are allocated to satisfy a given power demand. It isexecuted as a time series modelling for an exemplary year with hourly resolution. Thedevelopment of the software is divided into four steps, which are the definition of the userrequirements, the system design (activity, use case, system architecture, and ERD), the softwaredevelopment, and the software testing (unit testing, functionality testing, validity testing, anduser acceptance testing). The software is successfully implemented. All the features of thesoftware work as intended. Also, the software goes through validity testing using three differentinput data, to make sure the software is accurate. The result of the testing is 100% accuracy withrespect to the underlying model that was implemented in an excel calculation.

Evaluation of the Reduction in CO2 Emission by Applying Micro-Grid to Home Energy Supply System

2008 ◽  
Vol 128 (1) ◽  
pp. 32-38 ◽  
Author(s):  
Takaya Yamamoto ◽  
Tomihiro Takano ◽  
Yoshiyuki Takuma ◽  
Makoto Inoue ◽  
Gen Arao
Keyword(s):  
Co2 Emission ◽  
Energy Supply ◽  
Supply System ◽  
Energy Supply System ◽  
Micro Grid

POTENTIAL OF INTRODUCING DIGITAL AND INTELLIGENT SYSTEMS IN ELECTRICITY

2020 ◽  
Vol 37 (3) ◽  
pp. 36-45
Author(s):  
F.F. Khabirov ◽  
V.S. Vokhmin ◽  
Keyword(s):  
Distributed Generation ◽  
Energy Supply ◽  
Intelligent Systems ◽  
New Technologies ◽  
Technological Development ◽  
Energy Systems ◽  
Electric Power Industry ◽  
Energy Sector ◽  
Current Level ◽  
Environmental Friendliness

The article considers the possibility of introducing digital and intelligent systems in the electric power industry, including the analysis of the consequences after the introduction of new technologies on the economic, social and technological side. Currently, the concept of distributed generation is being used more and more often in the global energy arena. This is certainly a trend in the energy sector. The current level of technological development in the energy sector is quite high, but in order to continue to increase competitiveness, we need a further transition to digital and intelligent energy systems that will increase the reliability, quality, environmental friendliness and automation of energy supply.

Sign in / Sign up

Export Citation Format

Share Document