scholarly journals A Study for the Optimal Exploitation of Solar, Wind and Hydro Resources and Electrical Storage Systems in the Bormida Valley in the North of Italy

Energies ◽  
2020 ◽  
Vol 13 (20) ◽  
pp. 5291
Author(s):  
Stefano Bracco
Keyword(s):  
Renewable Energy ◽  
Wind Power ◽  
Power Plants ◽  
Renewable Energy Sources ◽  
Green Energy ◽  
Energy Sources ◽  
Medium Size ◽  
Low Carbon ◽  
The North ◽  
Wind Power Plants

The exploitation of distributed renewable energy sources leads to a low-carbon energy transition, mainly based on the optimal integration of hydro, PV and wind power plants with the remaining high-performance fossil-fuel power stations. In the last twenty years, European Union (EU) countries have shown a significant increase of the power installed in new PV and wind power plants, together with the refurbishment of small and medium size hydro stations. In particular, in Italy, PV and wind energy production has strongly increased and nowadays there are regions characterized by a very green energy mix. In this new scenario, energy storage becomes a viable solution to mitigate the variability of renewable energy sources thus optimizing the network operation. The present paper is focused on the Liguria region, in the North of Italy and in particular on the Bormida Valley where nowadays more than the half of the annual electricity consumption is covered by the renewable energy local production. The paper describes the current energy situation and proposes an optimization tool to investigate the possibility of installing new PV and wind power plants, as well as energy intensive storage units based on sodium-sulphur batteries; moreover, different scenarios are analyzed through the definition of economic and environmental key performance indicators.

scholarly journals Special Aspects of Using the Wind Power Plants In the Power Supply System

2021 ◽  
Vol 288 ◽  
pp. 01003
Author(s):  
Saken Koyshybaevich Sheryazov ◽  
Sultanbek Sansyzbaevich Issenov ◽  
Ruslan Maratbekovich Iskakov ◽  
Argyn Bauyrzhanuly Kaidar
Keyword(s):  
Renewable Energy ◽  
Smart Grid ◽  
Wind Power ◽  
Wind Turbines ◽  
Power Plants ◽  
Power Grid ◽  
Renewable Energy Sources ◽  
Power Grids ◽  
Energy Sources ◽  
Wind Power Plants

The paper describes special aspects of using the wind power plants (wind turbines) in the power grid. The paper provides the classification and schematic presentation of AC wind turbines, analyzes the role, place and performance of wind power plants in Smart Grid systems with a large share of renewable energy sources. The authors also reviews a detailed analysis of existing AC wind turbines in this paper. Recommendations are given for how to enhance the wind power plants in smart grids in terms of reliability, and introduce the hardware used in the generation, conversion and interface systems into the existing power grid. After the wind power plants had been put online, the relevance of the Smart Grid concept for existing power grids was obvious. The execution of such projects is assumed to be financially costly, requires careful study, and development of flexible algorithms, but in some cases this may be the only approach. The analysis of using wind turbines shows that the structural configuration of wind power plants can be based on the principles known in the power engineering. The approaches may differ, not fundamentally, but in engineering considerations. it is necessary to point out that the method of controlling dual-power machines is quite comprehensive so that their wide use will face operational problems caused by the lack of highly professional specialists in electric drives. Therefore, it seems advisable to use square-cage asynchronous generators in wide applications. The paper shows that as the renewable energy sources are largely used in power grids, there is an issue of maintaining the power generation at a required level considering the variability of incoming wind energy. This results in the malfunctions in the operation of relay protection devices and emergency control automatics (RP and ECA), and the complicated control. Also, the standards of the CIS countries and regulatory documents miss the requirements for the wind turbine protections, taking into account their specialty causing the inefficient standard protective logic, which does not work correctly in a number of abnormal and emergency operating modes, and especially Smart Grid in power grids.

scholarly journals Self-generated power supply of agricultural enterprises based on renewable energy sources

2020 ◽  
Vol 175 ◽  
pp. 11009
Author(s):  
Nikolay Rudenko ◽  
Valery Ershov ◽  
Viacheslav Evstafev
Keyword(s):  
Renewable Energy ◽  
Wind Power ◽  
Power Supply ◽  
Power Plants ◽  
Renewable Energy Sources ◽  
Power Installation ◽  
Horizontal Wind ◽  
Energy Sources ◽  
Wind Power Plants ◽  
Wind Power Installation

The article contains the following technical proposals for the power supply of autonomous agricultural facilities using renewable energy sources: the use of hybrid solar-wind power plants, the use of vortex wind power plants with a vertical axis to use both the energy of horizontal wind flows and the energy of upward air flows. The structure and operation algorithm of an autonomous power supply system based on a hybrid solarwind power plant and a diesel generator for autonomous agricultural facilities of small and medium power in regions where there is no distribution electric network are proposed. This system will allow for insufficient wind load to ensure reliable power supply to an autonomous agricultural facility with minimal use of diesel fuel. The design of a vortex wind power installation has been developed. The fastening on the shaft of the wind power installation of a conical helical blade with a variable radius, decreasing in the direction from the lower to the upper cut of the socket, improves the efficiency of the installation. The proposed installation makes it possible to use small winds and low-potential thermal ascending air currents, reduce low-frequency vibration and noise, and also increase the stability and efficiency of use of wind energy.

scholarly journals Justification of the territorial location of “green energy” objects in relation to the needs of the Tyumen region

2021 ◽  
Vol 274 ◽  
pp. 01009
Author(s):  
Larisa Filimonova ◽  
Elena Matys ◽  
Aleksandr Sbitnev ◽  
Elena Juze ◽  
Anastasia Bokova
Keyword(s):  
Wind Power ◽  
Power Plants ◽  
Renewable Energy Sources ◽  
Thermal Power ◽  
Green Energy ◽  
Electricity Production ◽  
Energy Sources ◽  
Territorial Development ◽  
Alternative Source ◽  
Wind Power Plants

In modern conditions of falling business activity of enterprises and falling incomes of the population, the growing trend of electricity shortages persists. This need may be aggravated by the high level of deterioration of equipment at Russian thermal power plants. All world practice shifts the guidelines for expanding electricity production towards the creation of a market for pre-fabricated renewable energy sources. In the article, the authors focused on justifying the need for the massive construction of wind power plants as an alternative source of energy. Today, «traditional» energy sources cannot meet the growing demand in remote areas of the Tyumen region with districts in the context of the spread of modern information technologies and the process of digitalization of public services. The current situation also imposes significant restrictions on the intensity of the development of the process of educational technologies in remote settlements. In this connection, the authors of the article decided to conduct an analytical study to substantiate the ways of territorial development through the launch of projects for the construction of compact wind power plants as an alternative source of energy in providing resources to remote settlements.

scholarly journals Competitiveness of Solar and Wind Power Plants in the Countries of the Commonwealth of Independent States

2020 ◽  
Vol 63 (4) ◽  
pp. 301-311
Author(s):  
O. V. Marchenko ◽  
S. V. Solomin
Keyword(s):  
Renewable Energy ◽  
Central Asia ◽  
Wind Power ◽  
Wind Turbines ◽  
Power Plants ◽  
Renewable Energy Sources ◽  
Energy Sources ◽  
Wind Power Plants ◽  
Independent States ◽  
Favorable Conditions

Techno-economic indicators of renewable (solar and wind) and non-renewable energy sources are systematized, taking into account the interval of their uncertainty for the conditions of the countries of the Commonwealth of Independent States (CIS). The main attention was paid to Russia and the countries of Central Asia (Kazakhstan, Kyrgyzstan, Tajikistan, Turkmenistan and Uzbekistan), where there are the most favorable conditions for the development of solar and wind energy. A comparison of renewable and non-renewable energy sources by the criterion of the cost of generated electricity has been made. It is shown that the payment for greenhouse gas emissions increases the competitiveness of solar and wind power plants in the energy markets. Under favorable conditions for renewable energy, solar and wind installations in some areas can produce cheap electricity at a cost of 3–5 cents/(kW×h). With such values, they can be competitive without additional measures to stimulate their implementation. Using the mathematical model REM-2 (Renewable Energy Model), energy sources of different types were compared taking into account system effects. The power supply system consists of photovoltaic converters, wind turbines that enable the possibility of short-term accumulation of electricity and power consumption from a backup power source. Modeling of photoelectric converters and wind turbines operating modes was performed by time (hours) for different values of solar radiation arrival and wind speed. The optimal ratios between electricity production by photovoltaic converters and wind turbines, as well as the optimal level of electricity consumption from the network under different climatic and economic conditions, were determined. The economic efficiency of joint use of solar and wind energy in the CIS countries, primarily in Russia (with the exception of the northern regions) and the countries of Central Asia, is shown.

scholarly journals Mathematical Modeling of Power Supply of an Autonomic Enterprise Based on Wind Power Plants

2018 ◽  
Vol 7 (3.5) ◽  
pp. 4
Author(s):  
Valeri Telegin ◽  
Nikolai Titov ◽  
Anatoli Stepanov
Keyword(s):  
Wind Power ◽  
Power Supply ◽  
Small Businesses ◽  
Power Plants ◽  
Renewable Energy Sources ◽  
Geographical Location ◽  
Energy Sources ◽  
Wind Power Plants ◽  
Definition Of ◽  
Supply Systems

Power supply systems for small businesses based on renewable energy sources are most often based on converting wind energy, solar energy and water energy. Calculating its effectiveness is a time-consuming task, requiring the processing of a large amount of data specific for the geographical location of power generating units. In the article the technique of computer modeling of work of a park of wind power plants (WPP) with the purpose of definition of an optimum parity of their parameters is considered.   

scholarly journals Prospects for green hydrogen production in the regions of Russia

2021 ◽  
Vol 265 ◽  
pp. 04011
Author(s):  
Liudmila Nefedova ◽  
Kirill Degtyarev ◽  
Sophia Kiseleva ◽  
Mikhail Berezkin
Keyword(s):  
Hydrogen Production ◽  
Wind Power ◽  
Co2 Emission ◽  
Power Plants ◽  
Renewable Energy Sources ◽  
Energy Sources ◽  
Hydrogen Energy ◽  
Global Trends ◽  
Wind Power Plants ◽  
Regions Of Russia

The article discusses the possibilities of hydrogen production using renewable energy sources in Russia for energy storage and for export. The global trends in the development of green hydrogen energy reducing the CO2 emission are highlighted. The analysis of the potential for hydrogen production in regions of Russia using electricity from operating wind power plants (WPPs), as well as wind power projects planned for construction until 2024 has been carried out.

scholarly journals Research on Increasing the Performance of Wind Power Plants for Sustainable Development

2019 ◽  
Vol 11 (5) ◽  
pp. 1266 ◽  
Author(s):  
Adriana Florescu ◽  
Sorin Barabas ◽  
Tiberiu Dobrescu
Keyword(s):  
Sustainable Development ◽  
Wind Power ◽  
Power Plants ◽  
Renewable Energy Sources ◽  
Green Energy ◽  
Sustainable Growth ◽  
Lubrication System ◽  
Roller Bearings ◽  
Wind Power Plants ◽  
Large Size

A topical issue globally is the development and implementation of renewable energy sources for sustainable development. To meet current requirements, the research in this paper is directed towards finding solutions to increase the performance and efficiency of wind power plants by implementing innovative solutions for hollow roller bearings developed through the use of sustainable growth programs in the field of green energy. Another solution that has the effect of increasing wind power performance consists of the implementation of a new large-size lubrication system for large-size bearings in wind energy units, which will increase their durability by developing maintenance capabilities. In this research, we will explore the possibility of introducing an innovative automated lubrication system in hollow roller bearings. The main results of the research, the innovative constructive solutions, will lead to important savings by lowering wind farm maintenance costs, increasing the durability of large bearings, and increasing the energy efficiency and yield of the whole system. The expected impact of implementing the solutions found will mainly be in the field of sustainable growth and environmental development.

scholarly journals CRYOGENIC ACCUMULATION OF ELECTRICITY GENERATED USING RENEWABLE ENERGY SOURCES

2021 ◽  
pp. 22-27
Author(s):  
V.Ya. Braverman ◽  
B.K. Ilienko
Keyword(s):  
Renewable Energy ◽  
Power Plants ◽  
Renewable Energy Sources ◽  
Lithium Ion ◽  
Energy Sources ◽  
High Accumulation ◽  
Accumulation Coefficient ◽  
Standard Equipment ◽  
Storage Devices ◽  
Wind Power Plants

Possibilities and prospects of accumulation of the electric power generated on objects of renewable energy sources - solar and wind power plants, with use of cryogenic liquids are considered. A comparison of the three most common ways of accumulating electricity: using lithium-ion batteries, hydrogen, liquid air. According to the proposed technology, the efficiency of recovery of electricity from liquid air is from 54 to 70%. The developed technology is based on cryogenic and thermal accumulation and has a high accumulation coefficient. It is shown that energy storage in cryogenic storage devices is the cheapest today. The proposed technology can also be used to generate electricity from liquefied natural gas using standard equipment developed by industry. The technological scheme of the cryoaccumulating station is offered. Bibl. 10, Fig. 1, Table 1.

scholarly journals Mathematical Modeling of Power Supply of an Autonomic Enterprise Based on Wind Power Plants

2018 ◽  
Vol 7 (3.5) ◽  
pp. 48
Author(s):  
Valeri Telegin ◽  
Anatoli Stepanov
Keyword(s):  
Wind Power ◽  
Power Supply ◽  
Small Businesses ◽  
Power Plants ◽  
Renewable Energy Sources ◽  
Geographical Location ◽  
Energy Sources ◽  
Wind Power Plants ◽  
Definition Of ◽  
Supply Systems

Power supply systems for small businesses based on renewable energy sources are most often based on converting wind energy, solar energy and water energy. Calculating its effectiveness is a time-consuming task, requiring the processing of a large amount of data specific for the geographical location of power generating units. In the article the technique of computer modeling of work of a park of wind power plants (WPP) with the purpose of definition of an optimum parity of their parameters is considered.  

scholarly journals Techno-Economic Analysis of a Stand-Alone Hybrid Wind-Power Fuel-Cell Grid System: A Case Study in Shahryar Region of Tehran

2020 ◽  
Vol 24 (1) ◽  
pp. 691-705
Author(s):  
Abozar Hashemi ◽  
Ghasem Derakhshan ◽  
M. R. Alizadeh Pahlavani ◽  
Babak Abdi
Keyword(s):  
Renewable Energy ◽  
Fuel Cell ◽  
Wind Power ◽  
Hybrid System ◽  
Power Plants ◽  
Renewable Energy Sources ◽  
Production Capacity ◽  
Economic Optimization ◽  
Wind Power Plants

Abstract Decreasing fossil energy resources and increasing greenhouse gas emissions increase the need for clean and renewable energy sources day by day. One of the sources of renewable energy is wind power, which has been constantly evolving in recent years. Wind power plants are sometimes unresponsive during peak hours, so a backup storage system seems essential for these power plants. In this study, a hybrid system is presented for connection to wind power plants consisting of fuel cell and hydrogen production, to provide reliable power and valuable by-products. In this paper, a case study is conducted for the desired system in the Shahryar County. The techno-economic optimization of the above system indicates that in the best design (consisting of three wind turbines), the annual production capacity of the hybrid system will be 1795 MWh, of which 12 % is the share of fuel cells. The results show that the hybrid system increases the capacity factor of the wind power plant by 2.8 %. The calculated cost of energy (COE) and the net present cost (NPC) for the hybrid system would amount to $ 0.77 and $ 5 235.066, respectively.

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