Yes. Both the Dynamic Map and the Energy Balance show Wallonia's annual electricity production from solar panels and wind turbines. Nevertheless, these two values may differ. This is due to the difference between the data sources and methodology used in each case.
To obtain the historical electricity production for the Dynamic Map of Wallonia, 3E adds up the real-time productions. These real-time productions have been calculated from Elia's near real-time data*, reduced to full installed capacity by technology type. Installed capacity is obtained by combining data supplied by SPW-Energie and resource data (wind, solar irradiation, temperature). As this is a theoretical calculation model with corresponding assumptions and margins of error, the dynamic map is not totally accurate.
The Energy Balance is based on other data sources, obtained according to a different methodology with its own assumptions and corresponding margins of error, which may lead to different results. These data sources, collected or transmitted to SPW, include:
· The service for granting green certificates, managed by SPW Energie, for gross and net renewable electricity production;
· The Electricity and Gas Distribution and Transmission System Operators for detailed electricity production and self-generation data by energy source;
· The REIWA survey of the most polluting companies in Wallonia to compare and validate electricity production data (Référentiel environnemental de gestion intégrée des entreprises).
· Energy producers and self-generating companies, such as ENGIE Electrabel for historical installations that are no longer eligible for green certificate reporting.
· Federations, regional facilitators, SPW's incentives department;
· IRM.
That said, the Dynamic Map and Energy Balances are intended to be complementary tools, the map being better suited if you are looking for near-real-time production data and the balances if you are looking for historical production data.
*Near real-time means that the data shows the current situation or a few minutes less. These data are renewed every 15 minutes.
