Electricitymap-contrib: Add Germany<->Belgium: Alegro is coming

[thtomate]

The first direct interconnection between Germany and Belgium has been constructed: Alegro https://www.elia.be/en/infrastructure-and-projects/infrastructure-projects/alegro
It is currently under testing and be used for the market next month. https://www.amprion.net/Press/Press-Detail-Page_26944.html

May be here are real data for it (wiht 30 minutes delay): https://www.elia.be/en/grid-data/transmission/physical-flows-per-border

[Kevindeving]

Unfortunately the interconnector is not yet included on entsoe. Should be coming soon hopefully.

[thtomate]

I looked and I found this: https://transparency.entsoe.eu/transmission-domain/physicalFlow/show?name=&defaultValue=false&viewType=TABLE&areaType=BORDER_CTY&atch=false&dateTime.dateTime=08.10.2020+00:00|CET|DAY&border.values=CTY|10Y1001A1001A83F!CTY_CTY|10Y1001A1001A83F_CTY_CTY|10YBE----------2&dateTime.timezone=CET_CEST&dateTime.timezone_input=CET+(UTC+1)+/+CEST+(UTC+2)
In the end of September, it changed from n/e to some integers.

[Kevindeving]

Argh, I only looked at the bidding zones and not border country. Maybe someone can integrate it then. Test connections seem to be made from Monday to Friday at daytime last weeks already. 👍

[FelixDQ]

Cool! You can see how PaulCornelissen implemented the DE->NO-NO2 exchange here. If you add it, then it will show up on the map when it becomes active.

[thtomate]

I have already seen it (we should not use DE-LU here), but I'm afraid of breaking things without an ENTSOE API key.

[PaulCornelissen]

I already looked at this when I did the NordLink, but there weren't any integers for this exchange at that point. I do remember this line though:
https://github.com/tmrowco/electricitymap-contrib/blob/master/parsers/ENTSOE.py#L179

Basically the ENTSOE parser currently substitutes DE-LU for DE in every fetch_*-call. So I suspect that maybe this exchange will be double counted as a DE<->BE exchange, but also in the DE-LU<->BE exchange. In that case we will require some extra code to untangle that.

[thtomate]

This is only used in fetch_price, otherwise would already break DE->LU and BE->LU and previously broke exchanges with common countries of Austria and Germany

[PaulCornelissen]

Ok, that sounds logical. You wan't to implement this? Otherwise I can do it.

[Kongkille]

Hey guys, does someone want to take this further? :)

cc @PaulCornelissen @thtomate

[PaulCornelissen]

I will, but probably not until next week.

[PaulCornelissen]

This issue can be closed i think. @FelixDQ