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Article

PVcheck—A Software to Check Your Photovoltaic System

Department of Engineering and Physics, Karlstad University, 65188 Karlstad, Sweden
Academic Editor: Frede Blaabjerg
Energies 2021, 14(20), 6757; https://doi.org/10.3390/en14206757
Received: 6 September 2021 / Revised: 11 October 2021 / Accepted: 14 October 2021 / Published: 17 October 2021
Having a photovoltaic (PV) system raises the question of whether it runs as expected. Measuring its energy yield takes a long time and the result still contains uncertainties from varying weather conditions and possible shading of the modules. Here, a free software PVcheck to measure the peak power of the system is announced, using the power data of a single sunny day. The software loads a data file of the generated power as a function of time from this day. This data file is provided by typical inverters. The software then simulates this power curve using known parameters like angle and location of the PV system. The assumed peak power of the simulation can then be adjusted so that the simulated curve matches the measured one. The software runs under Microsoft Windows™ and makes use of the free library pvlib python. The simulation can be refined by importing weather data like temperature, wind speed, and insolation. Furthermore, curves describing the nominal module efficiency as a function of the illumination intensity as well as the power-dependent inverter efficiency can be included in the simulation. First results reveal a good agreement of the simulation with experimental data. The software can be used to detect strong problems in PV systems after installation and to monitor their long-time operation. View Full-Text
Keywords: PV system; photovoltaic; solar cell; solar module; peak power; performance; long-term stability; pvlib python; simulation; system check PV system; photovoltaic; solar cell; solar module; peak power; performance; long-term stability; pvlib python; simulation; system check
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MDPI and ACS Style

Rinio, M. PVcheck—A Software to Check Your Photovoltaic System. Energies 2021, 14, 6757. https://doi.org/10.3390/en14206757

AMA Style

Rinio M. PVcheck—A Software to Check Your Photovoltaic System. Energies. 2021; 14(20):6757. https://doi.org/10.3390/en14206757

Chicago/Turabian Style

Rinio, Markus. 2021. "PVcheck—A Software to Check Your Photovoltaic System" Energies 14, no. 20: 6757. https://doi.org/10.3390/en14206757

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