scholarly journals Complementarity and ‘Resource Droughts’ of Solar and Wind Energy in Poland: An ERA5-Based Analysis

Energies ◽  
2021 ◽  
Vol 14 (4) ◽  
pp. 1118
Author(s):  
Jakub Jurasz ◽  
Jerzy Mikulik ◽  
Paweł B. Dąbek ◽  
Mohammed Guezgouz ◽  
Bartosz Kaźmierczak
Keyword(s):  
Power Plants ◽  
Statistical Significance ◽  
Field Measurements ◽  
Joint Operation ◽  
Energy Potential ◽  
Wind Power Plants ◽  
Lower Variability ◽  
Storage Demand ◽  
Installed Capacity ◽  
Wind Resources

In recent years, Poland has experienced a significant increase in the installed capacity of solar and wind power plants. Renewables are gaining increasing interest not only because of Poland’s obligations to European Union policies, but also because they are becoming cheaper. Wind and solar energy are fairly-well investigated technologies in Poland and new reports are quite frequently added to the existing research works documenting their potential and the issues related to their use. In this article, we analyze the spatial and temporal behavior of solar and wind resources based on reanalysis datasets from ERA5. This reanalysis has been selected because it has appropriate spatial and temporal resolution and fits the field measurements well. The presented analysis focuses only on the availability of energy potential/resources, so characteristics intrinsic to energy conversion (like wind turbine power curve) were not considered. The analysis considered the last 40 years (1980–2019) of available data. The Spearman coefficient of correlation was considered as a complementarity metric, and the Mann–Kendal test was used to assess the statistical significance of trends. The results revealed that: The temporal complementarity between solar and wind resources exists mostly on a seasonal scale and is almost negligible for daily and hourly observations. Moreover, solar and wind resources in joint operation exhibit a smoother availability pattern (assessed based on coefficient of variation). Further findings show that the probability of ‘resource droughts’ (periods when cumulative generation was less than arbitrary threshold) lasting one day is 11.5% for solar resources, 21.3% for wind resources and only 6.2% if both resources are considered in a joint resource evaluation. This situation strongly favors the growth of local hybrid systems, as their combined power output would exhibit lower variability and intermittency, thus decreasing storage demand and/or smoothing power system operation.

scholarly journals GIS-Based Methodology for Evaluating the Wind-Energy Potential of Territories: A Case Study from Andalusia (Spain)

Energies ◽  
2018 ◽  
Vol 11 (10) ◽  
pp. 2789 ◽  
Author(s):  
Pilar Díaz-Cuevas
Keyword(s):  
Wind Energy ◽  
Power Plants ◽  
A Priori ◽  
Energy Potential ◽  
Wind Power Plants ◽  
Wind Energy Potential ◽  
Selection Methodology ◽  
Energy Plants ◽  
Wind Resources

In recent years, Spain, in an effort to meet European Union (E.U.) targets, has been developing different strategies to promote the installation of renewable energy plants. In this regard, evaluating territories to assess their potential and thus identify optimum sites for the installation of energy-generating facilities is a crucial task. This paper presents a comprehensive geographic information system (GIS)-based site-selection methodology for wind-power plants in the province of Córdoba, which has hitherto been regarded as unsuitable for this sort of facility owing to the lack of wind resources. Three scenarios have been set out, each of which presents a different set of restrictions. Scenario 2 applies the most stringent restrictions in the specialized literature, and finds no suitable areas for the installation of wind-energy plants. However, Scenario 1, which applies the least stringent restrictions, and Scenario 3, which applies the same restrictions currently in force for other wind turbines already in operation in Andalusia, have led to the identification of several areas that could a priori be considered suitable and now need more detailed analysis. The results illustrate the convenience of undertaking multiscenario analyses.

scholarly journals ANALYSIS OF CLIMATIC PARAMETERS WHEN DESIGNING WIND POWER HIGH-RISE BUILDINGS

2021 ◽  
pp. 266-275
Author(s):  
Olga Krivenko
Keyword(s):  
Wind Power ◽  
Wind Turbines ◽  
Power Plants ◽  
Energy Resource ◽  
Climatic Parameters ◽  
Energy Potential ◽  
Technical Performance ◽  
High Rise ◽  
Wind Power Plants ◽  
Wind Potential

The relevance of the study is associated with the need to determine scientifically based principles for the design of wind-powered high-rise buildings. The article analyzes the main climatic parameters affecting the design of wind-powered high-rise buildings. While current research focuses mainly on the technical performance and savings of wind power plants (WPPs), modeling wind energy potential based on the analysis of climatic parameters allows you to optimize design solutions taking into account the influence of the environment. For various stages of the design of the integration of wind turbines into a high-rise building, it is important to take into account the dimensions of climate systems (macro, meso and micro levels), based on the laws operating within certain territorial boundaries. The article discusses the macroclimatic indicators that determine the total energy resource of wind in the region. The influence of the parameters of the mesoclimate on the wind potential has been determined, in accordance with the characteristics of the natural and anthropogenic environment (relief, the presence of forests, proximity to water bodies, urban development). The parameters that clarify the energy potential of the wind at the microclimatic level, taking into account the location of the wind turbine in the building, have been investigated. As a result of the analysis, a diagram of the structure of preliminary modeling of the energy wind potential at various climatic levels in the design of wind turbines in high-rise buildings has been determined. 

scholarly journals Features of Electricity Distribution Using Energy Storage in Solar Photovoltaic Structure

2020 ◽  
Vol 57 (5) ◽  
pp. 18-29
Author(s):  
Y. Veremiichuk ◽  
O. Yarmoliuk ◽  
A. Pustovyi ◽  
A. Mahnitko ◽  
I. Zicmane ◽  
...  
Keyword(s):  
Energy Storage ◽  
Power Plants ◽  
Storage System ◽  
Storage Device ◽  
Solar Photovoltaic ◽  
Energy Storage Device ◽  
Renewable Sources ◽  
Wind Power Plants ◽  
Installed Capacity ◽  
Intensive Development

AbstractThe intensive development of renewable energy, especially solar power and wind power plants, poses risks of disrupting the balance reliability of the grid. There is the need to develop electricity storage system area, first of all, due to the global tendency to increase the demand for electricity and the number of electricity generation from renewable sources. The issue of guaranteeing electricity supply to the consumer operating in the autonomous renewable source – energy storage device – consumer system is the main criterion when selecting the installed capacity of the generator on the basis of renewable sources and energy storage device capacity. Also, the application does not allow reducing voltage fluctuations in the renewable sources – the consumer system.

scholarly journals Impact of high WPPs penetration on the Vietnam Power System

1970 ◽  
Vol 9 (2) ◽  
pp. 142-149
Author(s):  
Hanh Thi Nguyet Nguyen ◽  
Vijay Vittal
Keyword(s):  
Power System ◽  
Wind Power ◽  
Power Plants ◽  
Low Voltage ◽  
Low Voltage Ride Through ◽  
Wind Power Plants ◽  
Dynamic Voltage ◽  
Voltage Performance ◽  
Installed Capacity ◽  
The Impact

Wind power installed capacity is expected to reach 1,000 MW and 6,200 MW in the Vietnam Power System (VPS) in 2020 and 2030, respectively. But detailed dynamic analysis of the wind power plants’ (WPPs) integration into the VPS is still scarce. In this paper, first, the impact of WPPs’ integration on the dynamic voltage performance and the wind turbine generator (WTG) low-voltage-ride-through (LVRT) requirement in the VPS for the year 2020 is studied. Then, case studies on the VPS for the year 2020 with different levels of wind penetration and different values of WTG’s maximum allowable voltage sag are studied. Simulation results show that the 2020 VPS can lose as much as 1,000 MW (100%) of WPP’s generated power following a severe contingency if the WTG’s LVRT capability is not considered. In some scenarios, the loss of WPPs’ generated power can cascade into a power system islanding situation which in turn could cause massive load shedding (15%) in the load-rich subsystem and result in wide variations of the electrical parameters of generators near the islanding boundary.

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