A solar pv data logger collects data from various resources and transmits them to a portal which processes and visualises data.
We take the term data collection more broadly, and understand it as different data sources depending on how the PV data logger is equipped and connected.
In order to find out which data sources must or should be connected, ask yourself the following questions: Which infrastructure is already at hand? How is the system used? – Is it a pure feed-in plant? Does it serve for your own consumption, with and without storage?