Issues about Monitoring the Energy Performance of a PV Plants Constellation

Abstract

After setting PhotoVoltaic (PV) plant up, it

needs to monitor its energy performance in order to verify the

correct or incorrect operation. For this aim, PV plants can be

equipped with simple dataloggers or SCADA systems. When

several PV plants have to be monitored, a unique supervision

centre is implemented, even if each PV plant is independent

from the others. From the point of view of storing and

transferring data, they constitute a constellation of PV plants.

This structure, based on the client-server configuration, allows

to concentrate the information on a unique supervision centre,

but PV plants have to be monitored one at a time. If several

analyses have to be run for each PV plant, the total time for

monitoring the whole constellation can be very long. The paper

deals with these issues.