In desert zones, a continuous cleaning activity of photovoltaic panels in solar plants is required since the deposition of both airborne dust and sand after a storm can reduce their efficiency up to 80%. Manual cleaning of the photovoltaic panels in dry areas is costly, cannot make use of water and workers must be employed several times in a month, often under extreme environmental conditions. For all these reasons, the research of cleaning solutions performed by autonomous robotic systems are seen beneficial to recover the solar panels efficiency at reasonable costs also nightly. In this respect, this paper presents the implementation of an unmanned low-cost robotic device operating without rails or guides for waterless dust and sand removal from the surface of photovoltaic panels. The robot autonomously moves as a half-track and gently wipes the dust away by means of a couple of independent helical brushes that alternatively rotate, according to a defined combination of the cleaning and motion strategy. Moreover, in real-time the robot detects its spatial position by ultrasonic sensors, regulates both its speed rate and motion direction. The on-board control system, based on an ARDUINO DUE platform, settles the robot travel direction, its speed and which brush must be activated for cleaning. Experimental tests have been performed by fabricating a prototype of the device to assess its effectiveness and reliability in terms of the autonomous motion, dust removal and low power consumption.

The photovoltaic (PV) solar panels are getting bigger applications in the practice. Their efficiency isbetter at lower temperatures. Normally the panels are cooled with the ambient air (in this case the gainedheat is dissipated to the surrounding without any application). A successful combination of photovoltaicsolar panel and solar collector is the so called photovoltaic-thermal (PV/T) solar panel. There are somesignificant advantages of the PV/T panels – aesthetic advantage over the PV panels, usage in placeswhere the area is limited, reduction of the installation costs and architectural unity between roof and PV/Tpanels. The article analyses two solar panels – the PV solar panel of the type polycrystalline silicon (pc-Si) and the PV/T Solar Module CPVT60P250 (both solar panels are produced by the Crane Companyusing silicone cells from EKS – Solaris GmbH). Some tests are implemented and a comparison betweenthe efficiencies of both panels is done.

Balance solar radiation between photovoltaic panels or between groups of photovoltaic panels will help to improve the efficiency of electricity generation of the entire solar power system, making the most of the solar energy converted into electricity power. In order to achieve this, it is necessary to reconfigure the connection of photovoltaic panels or groups of photovoltaic panels in the solar power system. In this paper, the general mathematical model for implementing resconfiguring of photovoltaic panels or groups of photovoltaic panels is presented in 2 parts: calculating to find out the optimal configuration connecting photovoltaic panels or groups of photovoltaic panels to achieve the highest performance of the solar system; and find out the best way to switch from the initial connection configuration state to the optimal configuration. The author focuses on analyzing and proposing mathematical models for two main problems in previous studies, developing objective functions and clear constraints, which are the rationale for evaluation of the quality and accuracy of the proposed algorithms, thereby developing more optimal algorithms than previous algorithms. Several experimental studies have been applied on a system of 4 solar panels. The archived results demonstrated the correctness and efficiency of the proposed mathematical model and optimal algorithm.

As our fossil sources of electricity reduce consistently, then looking for alternative electricity solutions turns into crucial. Solar cells often made from expensive materials, which is why much research focused on finding cheaper materials to reduce the overall cost of solar energy. Another way to overcome this problem is to use a solar concentrator - a cheaper light-absorbing material that covers a large area, which absorbs, directs, and focuses the light to a smaller area that contains actual solar cells. The interest in exploiting solar electricity for photovoltaic energy has grown dramatically in the latest years, furthermore essential improvements inside the solar cells’ efficiency with luminescent up or down converters have currently anticipated theoretically. While solar cells are still expensive, fewer of them needed to produce a certain amount of electricity because they receive more sunlight. This paper gives, in short, evaluate the usage of luminescent solar concentrator (LSC) as opportunity electricity has low fees and comfortable as compared with photovoltaic solar panels, reviewing extra benefits in actual existence applications primarily in high structures home windows and displays of electronic devices.

Solar energy is a renewable energy source that is becoming increasingly popular in providing electricity for households and industrial production. Using solar panels also brings many benefits to human life. In particular, solar panels are advantageous in providing electricity to remote and isolated areas that do not have access to the national grid. However, like any other technology, solar panels also have particular environmental impacts that need to be taken into account. From reference sources, this study aims to make statistics and evaluate the impacts of solar panels on the environment. The analyzed results show that the land occupancy index of solar power is the least compared to other power sources for the power plant's life of more than 25 years.

As we know, due to limited fossil fuel resources and rising energy demand, solar energy, which is a free and unlimited source of energy that is also eco-friendly and environmentally sustainable, is becoming widely attractive. But, due to land-use constraints, the cost of land and site preparation, and water evaporation and to take some environmental benefits, floating solar photovoltaic (FPV) systems have become an increasingly viable application of photovoltaic (PV) in Solar Energy field. This research paper reveal the advantages of FPV technology in the areas of energy, food, water and economic, such as enhanced efficiency of the panels, reduced usage of land and improved water quality, which will be the beneficial in the future. These benefits above are supported by practical and theoretical research data. Based on the categorization of benefits according to the practical and theoretical data, we are figuring out in which areas need further research. Keywords— Benefits of Floating Solar Power Plant, Floating Solar Photovoltaic (FPV), Floating Solar Power Plant, Renewable Energy, Hybrid Floating Solar Photovoltaic

The transformation of solar energy into electricity using photovoltaic cells has many economic and environmental benefits. As this technology reduces dependence on non-renewable energy sources, many developed and developing countries near the equator are increasingly willing to adopt such energy generation techniques. Its tilt angle with the horizontal plane and its orientation determines the photovoltaic panel (PV) yield. Thus the solar energy obtained from traditional photovoltaic panels can be maximized by replacing them with Intelligent photovoltaic panels. The Intelligent Photovoltaic panels adjust its orientation as well as tilt angle automatically with changing sun direction to receive maximum possible solar energy on its surface. A handful of studies on the orientation of tilt angle and its optimization have been conducted to improve the yield of photovoltaic panels; however, no solution has been proposed to estimate the optimum value of the parameters based on real-time monitoring.

The photovoltaic (PV) solar panels are getting bigger applications in the practice. Their efficiency is better at lower temperatures. Normally the panels are cooled with the ambient air (in this case the gained heat is dissipated to the surrounding without any application). A successful combination of photovoltaic solar panel and solar collector is the so called photovoltaic-thermal (PV/T) solar panel. There are some significant advantages of the PV/T panels - aesthetic advantage over the PV panels, usage in places where the area is limited, reduction of the installation costs and architectural unity between roof and PV/T panels. The article analyses two solar panels - the PV solar panel of the type polycrystalline silicon (pc-Si) and the PV/T Solar Module CPVT60P250 (both solar panels are produced by the Crane Company using silicone cells from EKS - Solaris GmbH). Some tests are implemented and a comparison between the efficiencies of both panels is done. G M T Английский Испанский Итальянский Казахский Китайский Трад Китайский Упр Корейский Русский Турецкий Французский Английский Испанский Итальянский Казахский Китайский Трад Китайский Упр Корейский Русский Турецкий Французский Звуковая функция ограничена 200 символами Настройки : История : Обратная связь : Donate Закрыть

Solar power development over canals is an emerging response to the energy–water–food nexus that can result in multiple benefits for water and energy infrastructure. Case studies of over-canal solar photovoltaic arrays have demonstrated enhanced photovoltaic performance due to the cooler microclimate next to the canal. In addition, shade from the photovoltaic panels has been shown to mitigate evaporation and potentially mitigate aquatic weed growth. However, the evaporation savings and financial co-benefits have not been quantified across major canal systems. Here we use regional hydrologic and techno-economic simulations of solar photovoltaic panels covering California’s 6,350 km canal network, which is the world’s largest conveyance system and covers a wide range of climates, insolation rates and water costs. We find that over-canal solar could reduce annual evaporation by an average of 39 ± 12 thousand m3 per km of canal. Furthermore, the financial benefits from shading the canals outweigh the added costs of the cable-support structures required to span the canals. The net present value of over-canal solar exceeds conventional overground solar by 20–50%, challenging the convention of leaving canals uncovered and calling into question our understanding of the most economic locations for solar power. Over-canal solar photovoltaic arrays are likely to reduce water evaporation and carry financial co-benefits, but estimates are lacking. With hydrologic and techno-economic simulations of solar panels covering California’s canal network, this study shows the advantages of covering canals with solar panels.

Thin film solar cells are expected to play a key role in the next generation of photovoltaic devices, due to low costs and manufacturing advantages. Their functionality would be increased further if thin film solar panels were able to be machined efficiently without affecting the integrity of the nanoscale component layers. In this work, we investigated the effects of grinding and polishing processes on the integrity of solar panels. With the limited selection of grinding wheels and abrasive sizes, surface roughness and chipping were in the order of micrometers, while the use of diamond film polishing resulted in roughness in the order of nanometers with minimal damage to the layers.