Reduction of electrical power loss in a photovoltaic chain in conditions of partial shading

Kreft, Wojciech; Filipowicz, M.; Żołądek, Maciej

doi:10.1016/j.ijleo.2019.163559

Cited by 22 publications

(15 citation statements)

References 21 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…A conclusion that may be drawn on the basis of the results of the research on Poland's insolation is that it is profitable to install solar collectors in practically every place in Poland, but there are regions where the sun "shines more." The above-average profits from the installation may be achieved by the inhabitants of the southeastern part of Poland (The World Bank, 2020; Kreft et al, 2020).…”

Section: Meteorological Possibilities Of Using Solar Collectors Installations In Polandmentioning

confidence: 99%

“…On the basis of the collected data and the adopted assumptions, calculations were made to estimate the amount of energy that may be obtained in the form of heat, depending on the absorber area. The amount of heat, adjusted appropriately taking into account the existing demand for heat, allows (Kreft et al, 2020). determination of the NPV, assuming the price of energy from the replaced heat source.…”

Section: Return On Investment Analysesmentioning

confidence: 99%

See 1 more Smart Citation

Analysis of the Return on Investment in Solar Collectors on the Example of a Household: The Case of Poland

Niekurzak

Kubińska-Jabcoń

2021

Front. Energy Res.

View full text Add to dashboard Cite

Background: The growing consumption is what drives the development of unsustainable energy and material-intensive production technologies that emit large quantities of pollutants into the atmosphere, water, and land. Obtaining green energy allows reduction of the interference with the environment and, consequently, fits into a sustainable energy development strategy. In order to achieve the emission targets set by the EU for Poland, it is necessary to prioritize the development of renewable energy sources (RES) technologies within the energy sector.Methods: The purpose of the study was to present the results of the research relating to the return on investment of solar collectors for single-family houses in Poland. The research was presented on the basis of the legal conditions applicable to micro installations in the light of the amendment of the RES Act, and the impact of these amendments on the aspects of such investment was determined.Results: On the basis of the constructed economic model used to assess the return on investment of increasing the area of solar collectors, it has been shown that an operating installation will bring measurable economic benefits in the form of reduction in the amount of energy purchased annually in the amount of 6,756 kWh and environmental benefits in the form of reduction of carbon dioxide emissions to the atmosphere 2.4–3.6 Mg per year. An installation subsidized under the “My Electricity” program can reach an NPV of EUR 6,000 over 20 years at a discount rate r = 0 and assuming that the electricity is EUR 0.15/kWh. If the price rises to 0.2 EUR/kWh, the NPV will be 10,000 EUR. For the analyzed installation, the investment consisting in increasing the collector area in accordance with NPV is economically effective for the absorber area in the range of 5.6–7.6 m2 and reaches the maximum value for the absorber area of 6.6 m2, while the absorber area above 7 m2 contributes to reduce the value of the economic return on investment. The obtained results have been generalized, which allows to use them in the process of selecting the size of collector area for similar installations.Conclusion: The return on investment analysis carried out in respect of a detached house allowed to demonstrate that this project is fully justified. Furthermore, pursuant to the Renewable Energy Sources Act in force in Poland, treating a small entrepreneur as a prosumer who may generally take advantage of favorable conditions for discounting the produced energy leads to very favorable possibilities of settling electricity. Considering an entrepreneur as a prosumer who may use one-off depreciation of a solar collectors installation as a fixed asset and request for VAT refund is what makes such an investment very attractive in financial terms and makes it difficult to find a safe investment alternative characterized by such a high rate of return.

show abstract

Section: Meteorological Possibilities Of Using Solar Collectors Installations In Polandmentioning

confidence: 99%

Section: Return On Investment Analysesmentioning

confidence: 99%

Analysis of the Return on Investment in Solar Collectors on the Example of a Household: The Case of Poland

Niekurzak

Kubińska-Jabcoń

2021

Front. Energy Res.

View full text Add to dashboard Cite

show abstract

“…The information about the location of the consumer units, present in the electricity distributors' databases, can be used to measure the indicators of generation estimate and technical parameters. The location of a consumer unit can indicate the solar incidence [56], the solar position [108], and the amount of shading since the photovoltaic modules work best when the lighting is uniform across the light-sensitive surface [109].…”

Section: The Dimension Of Economic Viabilitymentioning

confidence: 99%

Factors for Measuring Photovoltaic Adoption from the Perspective of Operators

et al. 2020

View full text Add to dashboard Cite

The diffusion of photovoltaic distributed generation is relevant for addressing the political, economic, and environmental issues in the electricity sector. However, the proliferation of distributed generation brings new administrative and operational challenges for the sustainability of electric power utilities. Electricity distributors operate in economies of scale, and the high photovoltaic penetration means that these companies have economic and financial impacts, in addition to influencing the migration of other consumers. Thus, this paper aims to systematically identify and evaluate critical factors and indicators that may influence electricity distributors in predicting their consumers' adoption of photovoltaic technology, which were subjected to the analysis of 20 industry experts. Results show that the cost of electricity, generation capacity, and cost of the photovoltaic systems are the most relevant indicators, and it is possible to measure a considerable part of them using the internal data of the electricity distributors. The study contributes to the understanding of the critical factors for the forecast of the adoption of consumers to distributed photovoltaic generation, to assist the distribution network operators in the decision making, and the distribution sustainability. Also, it establishes the theoretical, political, and practical implications for the Brazilian scenario and developing countries.

show abstract

“…However, despite the dynamic increase in the share of renewable energy sources in electricity generation, they are subject to limitations related to the dependence of their operating parameters on weather conditions (insolation, ambient temperature, wind speed, cloudiness, etc.) [13][14][15]. These restrictions imply from the point of view of the operator of the transmission network challenges of balancing demand and supply of energy from renewable sources unstable.…”

Section: Introductionmentioning

confidence: 99%

The Impact of Electricity Consumption Profile in Underground Mines to Cooperate with RES

2021

View full text Add to dashboard Cite

In Poland, a dynamic increase in the share of renewable energy sources in the national energy mix has been observed in recent years. Until now, these were mainly installations used for the needs of single-family houses and large-scale installations used on the RES auction market. However, due to the fact that the carbon footprint of the offered products is taken into account, this aspect is becoming more and more important. The carbon footprint can be offset by, among others, by covering the energy needs of the industrial plant by its own renewable energy sources. The article analyzes four sample electricity demand profiles of production plants operating in the mining industry, mainly located in Upper Silesia. Using statistical methods, the fitting of potential photovoltaic sources production profiles to the electricity consumption profiles in the analyzed case studies was checked. The analysis was carried out for each hour of the day and for the profiles weighted by the electricity price from the Polish Power Exchange on the Day-Ahead Market, because matching profiles at different hours has a different monetary value and, as a result, a different impact on operation costs. The highest correlation coefficient between electricity consumption and insolation on an annual basis was −0.29 in the Spearman rho-statistic for the case of M1 enterprise. On the other hand, the highest value at the level of 0.48 was achieved by the Pearson r-correlation coefficient determined on a monthly basis between the monetary value of electricity consumed and insolation in June for the M2 enterprise.

show abstract

Reduction of electrical power loss in a photovoltaic chain in conditions of partial shading

Cited by 22 publications

References 21 publications

Analysis of the Return on Investment in Solar Collectors on the Example of a Household: The Case of Poland

Analysis of the Return on Investment in Solar Collectors on the Example of a Household: The Case of Poland

Factors for Measuring Photovoltaic Adoption from the Perspective of Operators

The Impact of Electricity Consumption Profile in Underground Mines to Cooperate with RES

Contact Info

Product

Resources

About