An Adcon meteo station equipped with a total photovoltaic radiation sensor can prove itself as very useful in the appreciation and permanent management of the efficiency of a photovoltaic park. The LP02 total radiation sensor (near the solar panel on the mast in picture and in a closer view here-below) has a perfectly flat response over the entire range of solar radiation wavelengths and also has a massive glass dome that ensures equal sensitivity towards any possible direction where the sun could find itself.
The solar radiation intensity diagram (see below) offered by the PL02 can show, for instance, that 24.12.2015 was a much sunnier day than 25.12.2015 and only a little bit sunnier than the two preceding days. The maximum intensity of solar radiation during said day was 334.5 W/m², while the total energy received from the sun during said day was 6,776.3 W/m² x 1/4 hour = 1,694 Wh/m² (see the last diagram).
6,776.3 W/m² represents the sum of solar radiation intensities measured by the system at every 15 minutes along the day of 24.12.2015. Multiplication of this figure with 1/4 hour has as its result a rough figure for the total energy delivered by the sun during that entire day through a 1 square meter frame able to always face the sun.