2018-01 / Integration of a large-scale photovoltaic power plant into a Central American network


22 gennaio 2018

Integration of a large-scale photovoltaic power plant into a Central American network

As in all regions well exposed to the sun like Central America, photovoltaic energy is expanding. As it is the case here for this 60 MW plant, large-scale projects can be implemented for the network.

On January 22, sunny weather was forecast by all the used meteorological models.  None of them had anticipated the clouds passing between 11 am and 1 pm and causing a 30 MW drop in a few minutes.

The impact on the network may then be significant depending on the reserves available to the electrical system manager. A short-term sky-imager based forecasting solution would have enabled it to anticipate this event at least 15 minutes before it occured and give time to the operators to implement substitution production means.

 

Figure 1: actual production (in blue) vs production forecast of the day before (in red)