State of the Nordic Power System (Click 'Table' for more information): http://driftsdata.statnett.no/Web/map/snpscustom
The data seem to be a few minutes old, and doesn't have history (which would be nice).
The data seem to be a few minutes old, and doesn't have history (which would be nice).
It can also be easier/cheaper to import power for one point near the border than transport it from farther production facilities.
In a connected power system, if power 'needs' to get from A to B, it won't only flow through the direct connection, but along the longer loops as well, which often creates 'transit'. For example, in that map from NO5 to SE5 through Denmark, and from NO1 to NO3 through Sweden. This is normal and pretty much unavoidable - it's more efficient to optimize the flows to reduce total system losses, and then just try to bill everyone fairly.
You can't simply set a specific flow amount (well, you can force it to 0) to some country and keeep it there without mucking up the rest of the system, unless high voltage DC links are used to connect separate power systems.