Improving the efficiency of the use of photovoltaic stations in the republic of Cuba

Iakovleva, Emiliia; Guerra, Daniel

doi:10.1088/1742-6596/1753/1/012056

Cited by 2 publications

(5 citation statements)

References 7 publications

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“…Given the technical and economic criteria, it can be argued that the introduction of solar monitoring systems in the Republic of Cuba is technically feasible as the average energy production can increase by 30% annually. The results of computer simulations performed in previous studies confirm this increase in electrical energy [44]. Figure 14 shows the results of the simulation of a solar power plant with a stationary installation of solar modules and the use of a solar tracking system.…”

Section: Calculatedsupporting

confidence: 60%

“…where D is the distance between photovoltaic panels (m); H is the photovoltaic panel height (m); β is the tilt angle of the south-facing photovoltaic panels (degrees); and ϕ is the latitude of the location of the photovoltaic system. As mentioned earlier, the studies described in previous papers allowed us to identify the modernization options that provide the maximum energy gain [44]. The performance of the solar tracking systems in the Santiago de Cuba area is satisfactory and allows an increase in the amount of energy supplied to the national power grid provided by solar tracking systems compared to that of the stationary systems (Table 4).…”

Section: 𝐻 = 𝐿 * 𝑠𝑒𝑛(𝛽)mentioning

confidence: 94%

“…After determining the method of calculating electricity, the values of the generated energy for the stationary installation of the photovoltaic modules and for the use of the solar tracking system were obtained. Based on mathematical and computer modeling and experimental studies, it was confirmed that the most efficient way is the installation of solar tracking systems [44]. Figure 5 shows the structure of the method for calculating the generated solar energy of a solar power plant.…”

mentioning

confidence: 93%

“…The first, second, and third scenarios are justified by the developed computer model [44]. The fourth scenario is explained by the maximum possible replacement in the structure of the power plant and assuming the largest increase in capacity.…”

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confidence: 99%

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Technical and Economic Analysis of Modernization of Solar Power Plant: A Case Study from the Republic of Cuba

et al. 2022

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The problem of increasing the efficiency of existing power plants is relevant for many countries. Solar power plants built at the end of the 20th century require, as their shelf lives have now expired, not only the replacement of the solar modules, but also the modernization of their component composition. This is due to the requirements to improve the efficiency of power plants to ensure the expansion of renewable energy technologies. This article presents a technical and economic analysis of the choice of solar power plant modernization method, which consists of (1) a method for calculating the amount of power generation; (2) the modeling of solar power plants under specific climatic conditions; (3) the analysis of electricity generation using different types of PV modules and solar radiation trapping technologies in Matlab/Simulink; and (4) the technical and economic analysis of a 2.5 MW solar power plant in the Republic of Cuba (in operation since 2015), for which four different modernization options were considered. All the scenarios differ in the depth of modernization; the results of the analysis were compared with the existing plant. The results of the study showed that the different modernization scenarios respond differently to changes in the inputted technical and economic parameters (cost per kWh, inflation rate, losses, and power plant efficiency). The maximum NPV deviations among the considered scenarios are: a 1% increase in inflation reduces NPV by 2%; a decrease in losses from 20% to 10% increases the NPV by 2.5%; a change in cost from EUR 0.05 to EUR 0.1 increases the NPV by more than 3.5 times. The dependence of the economic results was also tested as a function of three factors: solar module efficiency, inflation, and the price per 1 kWh. It was found that the greatest influence on the NPV of the proposed model is the price per 1 kWh. Based on this analysis, an algorithm was developed to choose the most effective scenario for the conditions of the Republic of Cuba for the modernization of the existing power plants.

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Section: Calculatedsupporting

confidence: 60%

Section: 𝐻 = 𝐿 * 𝑠𝑒𝑛(𝛽)mentioning

confidence: 94%

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confidence: 93%

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confidence: 99%

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Technical and Economic Analysis of Modernization of Solar Power Plant: A Case Study from the Republic of Cuba

et al. 2022

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“…Solar energy is one of the renewable and environmentally sustainable energies as well as one of the promising energies because it is available in abundance. Therefore, at the present time, the academic and industrial Institutions are very interested in employing solar thermal energy and making it to operating cooling systems [5][6][7][8][9][10][11]. DX cooling systems are the most widely used in auto, homes and public buildings among other cooling cycles, simple in configuration and easier to maintain compared with central cooling systems which using water cooling tower.…”

Section: Introductionmentioning

confidence: 99%

A hybrid air conditioning system using solar energy to save electrical energy with improving performance

2021

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The process of operating an air conditioning system by hybrid energy that uses solar energy for purpose of saving electrical energy with improving the performance from modern and environmentally friendly systems. With high demand for air-conditioning systems in summer in hot regions, especially in Iraq due to high temperatures, the issue of using renewable energies becomes more attractive due to the continuous interruption of electrical energy. Air conditioners in Iraq consume more than half of the average electricity production. Therefore, saving energy leads to ensuring the reliability of electricity and reduces the consumption of fuel and gases that pollute the environment and negatively affect on the ozone layer. In the current research, the atmosphere of the city Baghdad was used to collect the solar thermal energy through a vacuum solar collector and combine it with a conventional air conditioner in order to reduce the electrical energy consumption on the compressor and increase the coefficient of performance. Several tests were conducted on the experimental device for comparing results with the conventional device and evaluating performance. The results showed that the performance with the vacuum solar collector became more efficient 8.97 instead of 4.27 than with the conventional system, and the energy consumption decreased by 52%.

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Improving the efficiency of the use of photovoltaic stations in the republic of Cuba

Cited by 2 publications

References 7 publications

Technical and Economic Analysis of Modernization of Solar Power Plant: A Case Study from the Republic of Cuba

Technical and Economic Analysis of Modernization of Solar Power Plant: A Case Study from the Republic of Cuba

A hybrid air conditioning system using solar energy to save electrical energy with improving performance

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