Efficiency of photovoltaic systems in mountainous areas

Chitturi, Sri Rama Phanindra; Sharma, Ekanki; Elmenreich, Wilfried

doi:10.1109/energycon.2018.8398766

Cited by 9 publications

(6 citation statements)

References 18 publications

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“…Average voltage difference recorded was 2.40 V. This will be more useful in morning and evening time and in winter days when Sun light comes on earth for short period and with less intensity. Tracking devices are also more beneficial in those areas, where the Sun appears for less time period in a day like mountainous area (Chitturi et al, 2018). For example, at a place, Sun appears for 4 Hours in a day.…”

Section: Resultsmentioning

confidence: 99%

Comparison of open circuit voltage generated by tracking solar panel and static solar panel using arduino board

Sharma¹,

Kumar²,

Ghangas³

et al. 2020

Int. J. Eng. Sci. Tech

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This paper represents the comparison of the voltages generated by the tracking and static solar panels. The work also aims to design and fabrication of a cheap and efficient tracking device. This device comprises of hardware and software. A rigid mechanical structure with nut and screw as the transmission is developed. 4 LDRs and DC motors are employed, which are cheap and less power consuming. As far as the software concerns, an open source microcontroller “Arduino UNO” board is used because of their simplicity and cost effectiveness. This Sun tracking device with a PV panel installed on it, is placed outside at the roof of the building along with a static solar panel. Output voltages generated from both panels are recorded in SD card through data logger in Arduino UNO. This real-time data shows the difference in amplitude of both the signals. Voltage of rotating panel is more than static one resulting that the tracking device can increase the efficiency of the panel by exposing the PV panel more to the sun light. Hence this setup proves that the solar panel with tracking system generates more energy than solar panel without tracking system. Keywords: Solar Tracker, LDR, PV Panel, Arduino UNO Board.

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Section: Resultsmentioning

confidence: 99%

Comparison of open circuit voltage generated by tracking solar panel and static solar panel using arduino board

Sharma¹,

Kumar²,

Ghangas³

et al. 2020

Int. J. Eng. Sci. Tech

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show abstract

“…In the domain of PV production in mountainous areas, there are several studies which support the potential of PV production in mountainous areas. Authors in (Chitturi et al 2018) conduct an experiment on two test sites in proximity but with an altitude difference of 1250 m. The measurements were performed manually by orienting a PV-panel toward the approximate position of the sun. A MPPT-controller was used to adjust the power point automatically, while resulting power values were read from a display and documented manually.…”

Section: Related Workmentioning

confidence: 99%

“…The output of PV systems depends on the amount of solar irradiance striking the PV panel surfaces, which for a particular meteorological and geographical location, further depends on weather data such as sunshine hours, relative humidity, maximum and minimum temperatures and cloud coverage (Chitturi et al 2018). Incoming sunlight striking the earth's surface is dispersed into an unobstructed direct beam and into diffuse radiation.…”

Section: Physical and Economic Aspectsmentioning

confidence: 99%

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Comparison of solar power measurements in alpine areas using a mobile dual-axis tracking system

et al. 2019

Self Cite

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The rising demand for sustainable energy requires to identify the sites for photovoltaic systems with the best performance. This paper tackles the question of feasibility of photovoltaic power plants at high altitude. A direct comparison between an alpine and an urban area site is conducted in the south of Austria. Two low-cost automatic photovoltaic power measurement devices with dual-axis sun tracking and maximum power point tracking are deployed at two test sites. The system periodically performs a scan over the southern semihemisphere and executes maximum power point adjustment in order to assess the performance for a given direction. The gathered data shows a higher photovoltaic power yield in the higher altitude test site. Furthermore, the high altitude photovoltaic power as a function of azimuth and elevation angle appears to be not only higher but also more flat than in lower altitudes. This indicates a lower power loss in case of deviation from the optimal solar angles. The results show that even on low-cost hardware a difference in photovoltaic power can be observed, even though in this experiment it amounts to less than 5% increase of peak power in higher altitudes. However, the measured peak powers on the mountain are more stable and therefore closer to a constant level than the heavily fluctuating peak power values at the low altitude site. Additionally, a slight shift in optimal elevation angles between altitudes can be observed, as the optimum angle turns out to be lower on the high altitude site. This angle shift could be caused by snow reflections on the mountainous test site.

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“…Assuming standard operating conditions, the altitude effect alone can increase solar power output by 270% within Earth’s altitude range ( Figure 1 – left). Solar panel efficiency also increases significantly at high altitudes owing to low temperatures ( Chitturi et al., 2018 ), with a linear relationship between temperature decrease and efficiency boost ( Dubey et al., 2013 ). In practice, a 10% increase in efficiency can be achieved by decreasing solar cell temperature by 25°C ( Figure 1 – right).…”

Section: Introductionmentioning

confidence: 99%

High-resolution electricity generation model demonstrates suitability of high-altitude floating solar power

Eyring

Kittner

2022

iScience

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Efficiency of photovoltaic systems in mountainous areas

Cited by 9 publications

References 18 publications

Comparison of open circuit voltage generated by tracking solar panel and static solar panel using arduino board

Comparison of open circuit voltage generated by tracking solar panel and static solar panel using arduino board

Comparison of solar power measurements in alpine areas using a mobile dual-axis tracking system

High-resolution electricity generation model demonstrates suitability of high-altitude floating solar power

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