They have significantly less of a problem with regards to their balance of trade, but any meaningful dependency on imports means that electricity prices will still be entirely dependent on the price of whatever is imported, at any point in time imports are happening. Still not great, and I wouldn't call that sovereignty!

Also, highly depending on what metric we mean by "80% self-sufficient" (peak capacity? long-time average?), there might either be a lot of work left, or this might be "effective sovereignty".