Thursday, 26 March 2015
The effect of solar eclipse on the PV panels
Laboratory Photovoltaic Solar Lab RWE AGH,
operating at the Faculty of Energy and Fuels AGH University of Science and
Technology in Krakow, examined the effect of solar eclipse on the operation of
the PV system. Test included examination of influence of solar eclipse on 40
different PV panels.
On
Friday ( March 20,2015) laboratory Laboratory Photovoltaic Solar Lab RWE AGH, normally
exploring the relationship between the quality of the electricity generated
from PV panels and the weather, took the opportunity of solar eclipse to see
how this phenomenon affects the performance of photovoltaic systems.
In
this study, an analysis of the energy performance of amorphous thin-film panels
examined to what extent the eclipse resulted in a loss of power produced by the
photovoltaic system. The analysis was performed using a test installation with
a nominal power of 7.5 kW.
The solar
eclipse was observed in Krakow between 9:44 am and 12.04 pm. The examination
has been performed at 10:53 am, where it was said that eclipse was at its
maximum point. In normal conditions, the intensity of solar radiation at this
point would amount to approx. 600 W / m2. Unusual phenomenon, however, lead to
a decline in the value of 214W / m2, which in turn led to a decline in the
stand-alone power systems with the expected value 1,12kW 3,3kW.
Nevertheless,
the eclipse did not significantly affect the energy performance of PV panels.
Its effect can be compared to the impact it may have on cloudy typical for this
time of year in Krakow.
Laboratory
Photovoltaic Solar Lab RWE AGH has been founded on December 14,2014 as a result
of cooperation between RWE Poland and the Academy of Mining and Metallurgy of
Stanislaus Technology in Krakow (in short referred as “AGH”).
The laboratory
consists of :
- 40 photovoltaic panels, mounted on the roof of the building of the Faculty of Energy and Fuels,
- inverters,
- teaching and research equipment,
- batteries
- and measuring weather station weather conditions.
Workshop/laboratory,
is available to students conducting necessary measurements for the implementation
of laboratory exercises and final assesments. The results of experiments and
measurements will be used to assess the impact of operating conditions on the performance
of RWE’s photovoltaics and the durability and quality of electricity obtained.
Pictures of the Laboratory |
Based on:
http://www.rwe.pl/pl/dla-mediow/aktualnosci/rwe-polska-otwiera-rwe-agh-solar-lab-i-rozsze
http://portalkomunalny.pl/jak-zacmienie-slonca-wplynelo-na-instalacje-fotowoltaiczne/
Picture:
http://www.rwe.pl/pl/dla-mediow/aktualnosci/rwe-polska-otwiera-rwe-agh-solar-lab-i-rozsze
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