scholarly journals Ukraine Energy Sector Management Using Hybrid Renewable Energy Systems

Energies ◽  
2020 ◽  
Vol 13 (7) ◽  
pp. 1776 ◽  
Author(s):  
Oleksandr Sabishchenko ◽  
Rafał Rębilas ◽  
Norbert Sczygiol ◽  
Mariusz Urbański
Keyword(s):  
Renewable Energy ◽  
Renewable Energy Sources ◽  
Energy Systems ◽  
Energy Sector ◽  
State Regulation ◽  
Energy Sources ◽  
Renewable Energy Resources ◽  
Renewable Energy Systems ◽  
Hybrid Renewable Energy Systems ◽  
Hybrid Renewable Energy

The Ukrainian energy sector is one of the most inflexible energy sectors in the world as a result of the almost complete depreciation of the equipment of the main sources of power supply: nuclear, thermal, and hydropower. In connection with existing problems, there is a need to develop and use new energy-saving technologies based on renewable energy sources. In this proposed research, a regression model of renewable energy growth in the energy sector of Ukraine was developed. The studied literature reveals that the independent use of individual functioning elements of renewable energy sources function as the primary power source that is not an optimal solution for stable energy supply. This study proposes the use of hybrid renewable energy systems, namely a combination of two or more renewable energy sources that will help each other to achieve higher energy efficiency, accelerate the growth of renewable energy in the share of the Ukrainian energy sector and/or improve functioning with battery energy storages. Moreover, the use of hybrid renewable energy systems in Ukraine will reduce the human impact on the environment, realize the potential of local renewable energy resources and also increase the share of electricity generation from renewable energy sources. Therefore, mechanisms for managing state regulation of stimulating the development of hybrid renewable energy systems have been developed.

scholarly journals An Overview on Functional Integration of Hybrid Renewable Energy Systems in Multi-Energy Buildings

Energies ◽  
2021 ◽  
Vol 14 (4) ◽  
pp. 1078
Author(s):  
Laura Canale ◽  
Anna Rita Di Fazio ◽  
Mario Russo ◽  
Andrea Frattolillo ◽  
Marco Dell’Isola
Keyword(s):  
Renewable Energy ◽  
Real Time ◽  
Energy Demand ◽  
Residential Buildings ◽  
Renewable Energy Sources ◽  
Functional Integration ◽  
Energy Systems ◽  
Renewable Energy Systems ◽  
Hybrid Renewable Energy Systems ◽  
Hybrid Renewable Energy

Buildings are responsible for over 30% of global final energy consumption and nearly 40% of total CO2 emissions. Thus, rapid penetration of renewable energy technologies (RETs) in this sector is required. Integration of renewable energy sources (RESs) into residential buildings should not only guarantee an overall neutral energy balance over long term horizon (nZEB concept), but also provide a higher flexibility, a real-time monitoring and a real time interaction with end-users (smart-building concept). Thus, increasing interest is being given to the concepts of Hybrid Renewable Energy Systems (HRES) and Multi-Energy Buildings, in which several renewable and nonrenewable energy systems, the energy networks and the energy demand optimally interact with each other at various levels, exploring all possible interactions between systems and vectors (electricity, heat, cooling, fuels, transport) without them being treated separately. In this context, the present paper gives an overview of functional integration of HRES in Multi-Energy Buildings evidencing the numerous problems and potentialities related to the application of HRESs in the residential building sector. Building-integrated HRESs with at least two RESs (i.e., wind–solar, solar–geothermal and solar–biomass) are considered. The most applied HRES solutions in the residential sector are presented, and integration of HRES with thermal and electrical loads in residential buildings connected to external multiple energy grids is investigated. Attention is focused on the potentialities that functional integration can offer in terms of flexibility services to the energy grids. New holistic approaches to the management problems and more complex architectures for the optimal control are described.

Speculation about the Relationship between Renewable Energy and Economic Growth

2011 ◽  
Vol 271-273 ◽  
pp. 693-699
Author(s):  
Rui Gui Yang ◽  
Ping Ping Wang
Keyword(s):  
Economic Growth ◽  
Renewable Energy ◽  
Renewable Energy Sources ◽  
Energy Systems ◽  
Energy Sources ◽  
Renewable Energy Resources ◽  
Renewable Energy Systems ◽  
Long Run ◽  
Sound Management ◽  
The Relationship

This paper tries to offer lessons about the very long run aspects of a future economy reliant predominantly on renewable energy sources. The evidence is based on past economies and civilizations and their experiences of economic expansion driven by renewable energy resources. The paper proposes that economies around the world, since antiquity, have managed to survive, and even develop and grow driven by renewable energy sources. Successful long run economic growth depended on sound management of demand, supply and trade of wood fuel. Where governments failed to develop appropriate policies, growth and development was severely constrained. Despite the uncertainty about the future, this paper proposes that researchers start to consider the nature of long run economic growth and appropriate policies within renewable energy systems.

Solar-based hybrid renewable energy plants

2021 ◽  
pp. 49-65
Author(s):  
Mamta Chahara ◽  
Sarita Khaturia ◽  
C. B. Mahto ◽  
Harlal Singh ◽  
Vinay K. Chaudhary
Keyword(s):  
Climate Change ◽  
Global Warming ◽  
Renewable Energy ◽  
Energy Systems ◽  
Energy Sources ◽  
Solar Pv ◽  
Renewable Energy Systems ◽  
Hybrid Renewable Energy Systems ◽  
Hybrid Renewable Energy ◽  
Energy Plants

Hybrid renewable energy systems like solar and wind systems are growing at rapid pace due to the swift depletion of petroleum resources and global warming phenomena. In recent years, global warming and climate change are two major problems in the global economy and environment, and they have a significant effect on the inadequate accessibility and rising cost of energy. The high consumption of energy in the world has already increased concerns about supply difficulties and significant environmental effects, such as global warming and climate change. The results show that energy created by traditional energy sources causes an increase in greenhouse gas discharge, which could affect global warming. With the consideration of the issues discussed above, continual potential action for sustainable improvement is required. In addition, cost-effective, consistent, and environmentally friendly energy systems are the attributes of a sustainable energy system that efficiently uses local assets and networks. Therefore, renewable energy sources are positioned as one of the proficient and useful solutions. Currently, some countries have the potential for different types of energy resources, such as solar, wind, etc., and in addition, many companies are developing, constructing and setting up modern and high-tech renewable energy systems. These countries attempt to lead a large network of investigators and other partners to utilize advanced technologies that will provide a cost for renewable electricity generation that is competitive with traditional sources of energy. Although a number of studies have been performed on renewable energy systems but hybrid renewable energy systems (HRES) are in demand in this era due to advanced renewable energy technologies. For these types of hybrid plant, researchers are designing a most favorable system by incorporating optimization techniques to predict optimal units for solar PV, wind power generation and batteries in minimize cost for generating stable power supply. The unique features of hybrid energy plants such as instant power, power quality spinning reserve replacement, ancillary services, internal combustion engines–integrated with energy storage and solar PV–offer considerable potential for fuel and cost savings. This article focuses primarily on different hybrid solar systems, advancements and their applications.

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