Loop flows

As the energy moves freely through the grid from generation to consumption, not only imported/exported energy will cross our border. The physical flows that we measure on these borders can be split in different flow types. There are flows related to import and export, transit flows and loop flows.

  • A transit flow can be defined as the physical flow due to the export from one zone to another zone.
  • A loop flow can be defined as the physical flow due to internal energy transfers in one bidding zone.

Elia calculates the expected values of the loopflows by cancelling all commercial exchanged (changing the netposition of all countries to 0MW) and considering the remaining flows as loopflows. This calculation is based on two days ahead forecast data.

More details on the calculation can be found in the following document:





00h 01h 02h 03h 04h 05h 06h 07h 08h 09h 10h 11h 12h 13h 14h 15h 16h 17h 18h 19h 20h 21h 22h 23h
22/11/2017 - NL -> BE
1205 1328 1231 1208 1277 1185 968 1178 1226 1144 1081 995 984 939 936 877 698 709 811 979 972 581 699 781



00h 01h 02h 03h 04h 05h 06h 07h 08h 09h 10h 11h 12h 13h 14h 15h 16h 17h 18h 19h 20h 21h 22h 23h
22/11/2017 - BE -> FR
1205 1328 1231 1208 1277 1185 968 1178 1226 1144 1081 995 984 939 936 877 698 709 811 979 972 581 699 781

Historical data can be downloaded in the data download section.