Knowledge

The instrumental drift of the solar cells of solarimeters

The instrumental drift of the solar cells of solarimeters

Our factory use a stabilization treatment to PV cells of our solar sensors. After years of experience in the recalibration we observed that the instrumental drift of our sensors after 18 months is contained inside 3% of the measured values. This data is very positive as it gives us proof that the preconditioning of the […]

The meaning of “accuracy” and “precision” for solar radiation measuring devices

The meaning of “accuracy” and “precision” for solar radiation measuring devices

In the past these two terms were considered synonyms. Nowadays, due to the development of technological equipment and measuring instruments, metrology has differentiate their meanings. Accuracy: indicates how a given measurement is close to the real value. Precision: refers to the closeness between independent measurements. Here’s a very useful image for easily understand the meaning […]

Photovoltaic energy monitoring: solarimeters or pyranometer?

Photovoltaic energy monitoring: solarimeters or pyranometer?

Speaking about the correct monitoring of Photovoltaic energy and PV systems performances, is it better using a silicon solarimeter or a pyranometer? The answer is: it is more functional to use a solarimeter (or silicon cell irradiation sensor). This idea is based on the following assumptions and concepts: The silicon cell surveys the same radiation […]

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