scholarly journals The Economic and Geographical Aspects of the Status of Small-Scale Photovoltaic Systems in Hungary—A Case Study

Energies ◽  
2020 ◽  
Vol 13 (13) ◽  
pp. 3489 ◽  
Author(s):  
Gábor Pintér ◽  
Henrik Zsiborács ◽  
Nóra Hegedűsné Baranyai ◽  
András Vincze ◽  
Zoltán Birkner
Keyword(s):  
Power Plants ◽  
Photovoltaic System ◽  
Small Scale ◽  
Photovoltaic Systems ◽  
Comprehensive Investigation ◽  
Photovoltaic Power ◽  
The Status ◽  
Average Size ◽  
Geographical Locations

The use of solar energy is an obvious choice; the energy of the sun is not only indispensable for most processes in nature but it is also a clean, abundant, sustainable, and—most importantly—universally available resource. Although the further spread of photovoltaic systems, which make use of this source of energy, is expected in the future all around the world, no comprehensive investigation has been conducted into the current situation of the small-scale photovoltaic power plants in Hungary, where this type of photovoltaic system is the most popular. By means of a case study, whose novelty lies in its focus on small-scale power plants and their complex examination, including economic and geographic indicators, this paper analyzes their status in Hungary. The study endeavors to establish the reasons for the popularity of this type of power plant and to identify some typical geographical locations with well-illustrated photovoltaic density. Residential, as well as business prosumers, were examined with the aim of learning more about the density of the small-scale photovoltaic systems and their geographical locations. Another goal was to calculate the average size of small-scale photovoltaic power plants and to gain more understanding of their economic aspects. The outcomes of this research include maps displaying the density of the small-scale photovoltaic power plants in Hungary and the results of the economic calculations for such investments.

scholarly journals Relationships between the Number and Power of Hungarian Household-Sized Photovoltaic Power Plants and Selected Indicators of the Settlements: A Case Study

Processes ◽  
2020 ◽  
Vol 9 (1) ◽  
pp. 4
Author(s):  
Nóra Hegedűsné Baranyai ◽  
Henrik Zsiborács ◽  
András Vincze ◽  
Nóra Rodek ◽  
Martina Makai ◽  
...  
Keyword(s):  
Power Plants ◽  
Small Scale ◽  
Significant Relationships ◽  
Photovoltaic Power ◽  
Almost Everywhere ◽  
Pairwise Correlations ◽  
Service Areas ◽  
Complex Indicators ◽  
The Relationship

In the global transformation of energy systems, solar energy plays a prominent role, since the energy from our star is a limitless and clean resource, which is available practically almost everywhere. In spite of the immense advancements of photovoltaic systems, which utilize this source of energy, no in-depth research has been carried out regarding the present Hungarian status of the small-scale photovoltaic power plants, the most common type of solar power plant in Hungary. The novelty of this study is that it examines the number and power of these small-scale power plants at the settlement level within the service areas of the various distribution companies, by also considering the economic and infrastructural dimensions of the settlements. The paper seeks answers to the questions whether there are any significant relationships between the number and the power of power plants of this type and the indicators of the settlements, and if so, how strong they are. Besides pairwise correlations, the study also involved the analysis of the relationship between the ranking of the settlements based on the settlements’ complex indicators that were created from the settlements’ indicators and the ranking of the settlements according to the number and power of household-sized photovoltaic power plants per 1000 people. In the course of exploring the relationships, a regression model was also devised concerning the number of household-sized photovoltaic power plants and the settlement indicators.

scholarly journals Influence of Single-Phase Solar Photovoltaic Systems on Total Harmonic Distortion: A Case Study

2018 ◽  
Vol 12 (2) ◽  
pp. 607
Author(s):  
Chin Kim Gan ◽  
Sara Ragab Mahmoud ◽  
Kyairul Azmi Baharin ◽  
Mohd Hendra Hairi
Keyword(s):  
Single Phase ◽  
Harmonic Distortion ◽  
Total Harmonic Distortion ◽  
Photovoltaic System ◽  
Design Stage ◽  
Small Scale ◽  
Photovoltaic Systems ◽  
Solar Photovoltaic ◽  
The Impact

<span>The installation of small-scale solar photovoltaic system has recently gaining popularity in Malaysia mainly driven by the Feed-in Tariff scheme. Given its relatively small generation capacity, the single-phase solar inverters are not required to comply with power quality standard. Neverthelss, the impact of small-scale solar system on the grid could become significant when the penetration is increasing over the years. In this regard, this paper presents a case study on the influence of single-phase grid-connected solar photovoltaic systems on the total harmonic distortion for current at the point of common coupling. Field measurements have been carried out for a total of 12 single-phase solar systems which were installed at three different locations at Universiti Teknikal Malaysia Melaka. Detailed analyses have been performed to characterize the aggregated current harmonic performance for the overall system.  The findings from the presented case study suggest that the current quality from the inverter is highly dependent on the level of inverter output. Hence, the proper selection of the array-to-inverter ratio at the system design stage could greatly improve the overall total harmonic performance performance for current.</span><span>The installation of small-scale solar photovoltaic system has recently gaining popularity in Malaysia mainly driven by the Feed-in Tariff scheme. Given its relatively small generation capacity, the single-phase solar inverters are not required to comply with power quality standard. Neverthelss, the impact of small-scale solar system on the grid could become significant when the penetration is increasing over the years. In this regard, this paper presents a case study on the influence of single-phase grid-connected solar photovoltaic systems on the total harmonic distortion for current at the point of common coupling. Field measurements have been carried out for a total of 12 single-phase solar systems which were installed at three different locations at Universiti Teknikal Malaysia Melaka. Detailed analyses have been performed to characterize the aggregated current harmonic performance for the overall system.  The findings from the presented case study suggest that the current quality from the inverter is highly dependent on the level of inverter output. Hence, the proper selection of the array-to-inverter ratio at the system design stage could greatly improve the overall total harmonic performance performance for current.</span>

Technical and economic assessments of grid-connected photovoltaic power plants: Iran case study

Energy ◽  
2016 ◽  
Vol 114 ◽  
pp. 923-934 ◽  
Author(s):  
Saeed Edalati ◽  
Mehran Ameri ◽  
Masoud Iranmanesh ◽  
Hakimeh Tarmahi ◽  
Maysam Gholampour
Keyword(s):  
Power Plants ◽  
Photovoltaic Power

scholarly journals A Novel Method for Analyzing Highly Renewable and Sector-coupled Sub-national Energy Systems–Case Study of Schleswig-Holstein

2021 ◽  
Author(s):  
Md. Nasimul Islam Maruf
Keyword(s):  
Energy Demand ◽  
Power Plants ◽  
Energy Systems ◽  
Energy Transition ◽  
Heat Pumps ◽  
Offshore Wind ◽  
Small Scale ◽  
Ground Source Heat Pumps ◽  
Feasible Solutions

The energy transition requires integration of different energy carriers, including electricity, heat, and transport sectors. Energy modeling methods and tools are essential to provide a clear insight into the energy transition. However, the methodologies often overlook the details of small-scale energy systems. The study states an innovative approach to facilitate sub-national energy systems with 100% renewable penetration and sectoral integration. An optimization model, OSeEM-SN, is developed under the Oemof framework. The model is validated using the case study of Schleswig-Holstein. The study assumes three scenarios representing 25%, 50%, and 100% of the total available biomass potentials. OSeEM-SN reaches feasible solutions without additional offshore wind investment, indicating that they can be reserved for supplying other states&rsquo; energy demand. The annual investment cost varies between 1.02 bn &ndash; 1.44 bn &euro;/yr for the three scenarios. The electricity generation decreases by 17%, indicating that with high biomass-based combined heat and power plants, the curtailment from other renewable plants can be decreased. Ground source heat pumps dominate the heat mix; however, their installation decreases by 28% as the biomass penetrates fully into the energy mix. The validation confirms OSeEM-SN as a beneficial tool to examine different scenarios for sub-national energy systems.

scholarly journals Analysis of Fire Risk Associated with Photovoltaic Power Generation System

2018 ◽  
Vol 2018 ◽  
pp. 1-7 ◽  
Author(s):  
Guomin Zhao ◽  
Min Li ◽  
Lv Jian ◽  
Zhicheng He ◽  
Jin Shuang ◽  
...  
Keyword(s):  
Power Generation ◽  
Fire Risk ◽  
Photovoltaic System ◽  
Flow Density ◽  
Photovoltaic Systems ◽  
Solar Photovoltaic ◽  
Generation System ◽  
Photovoltaic Power ◽  
Power Generation System ◽  
Flat Roof

Because of increasing energy consumption and severe air pollution in China, solar photovoltaic power generation plants are being deployed rapidly. Owing to various factors such as technology, construction, and imperfection of construction standards, solar photovoltaic systems have certain fire risks. This paper focuses on the fire risks of building-integrated solar photovoltaic buildings, as well as temperature and heat flow density near a photovoltaic system in a fire. Based on FDS simulation results, the influence of different building fires on photovoltaic systems is analysed. It is found that the influence of fire on photovoltaic systems installed on a building with a flat roof is stronger than that on a system installed on a building with a sloping roof; the influence of fire on a photovoltaic system installed on a building with external wall thermal insulation is stronger than that on a system installed on a building without such insulation; and in the presence of a skylight, a photovoltaic system installed on a building with a sloping roof is more dangerous.

Sign in / Sign up

Export Citation Format

Share Document