Analysis of the Efficiency of a Stand-Alone PV System for Powering of a Detached House in the Village of Nikolovo, Bulgaria

Boyadzhieva, Alexandra; Evstatiev, Boris; Mihailov, N.; Mihailov, Ludmil

doi:10.1109/icate49685.2021.9465059

Cited by 4 publications

(1 citation statement)

References 6 publications

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“…The problem is that the I-V curve of the PV panels change together with the ambient conditions as temperature, angle of illumination, intensity and spectrum of radiation, and with the array degradation too, [2]. At the same time, the PV systems have a low investment return ratio compared to other conventional energy sources and it could be even worst because studies conclude that in certain cases there are significant amounts of unused energy, which further seriously reduces their efficiency, [3,4]. In such cases, it is important to increase the energy utilization if the PV investment is to be optimal.…”

Section: Introductionmentioning

confidence: 99%

Detailed infrared diagnostics of photovoltaic panels for higher safety and optimal energy generation

Keseev¹

2023

E3S Web Conf.

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The Photovoltaic (PV) systems are one of the key renewable energy sources that are becoming increasingly popular, but they still have many drawbacks compared to conventional energy sources. Their main disadvantages are that they require a lot of installation space and they have low investment return ration. Both could be overcome by local installation of the PV plants as close as possible to the end consumer, and the best case is the PV panels to be installed on the buildings, but this could lead to higher fire risk for the residents. Different PV panels degrade with different speeds and work under slightly different conditions. These problems require at least periodic PV panel diagnostics and the thermal infrared (IR) inspection seems to be the best solution. The prerequisites for correct IR diagnostics are presented. One of the requirements for detailed IR inspection is the thermal camera to capture each PV cell with at least 5 by 5 pixels in horizontal and vertical directions. A methodology for pixel size calculation and IR monitoring system design is developed and presented in this work.

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Section: Introductionmentioning

confidence: 99%