[Mazurka]

Correct.
The DC cross-channel link is used in that way.
The UK is mostly a net importer but, during the hot weather, the Nuclear plant in France couldn't run at maximum because the cooling water was not sufficient. We were selling them Energy!

Although slightly less pretty than the live frequency monitor
http://www.nationalgrid.com/uk/Electricity/Data/Realtime/
is another interesting source of data and has the real time system transfers infromation.
At the time of posting:
 N. Ireland is importing 194MW from Britain
and Britain is importing 32MW from France. 

[LeeE]

More good links - they're a bit slow to initially load though - Ta.

[Mazurka]

What did you expect? - the national grid is mainly steam powered... [xx(] [)]

[LeeE]

Doh! - of course  []