[cjblomqvist]

Northern Europe, at least Scandinavia, is already at 90%+ non carbon electricity generation. (88-100%)

Central and Eastern Europe have it tougher.

[don_esteban]

Central/Eastern Europe is rather into nuclear (Austria on renewables) and not too heavy on fossil, exceptions being Poland/Czechs/Germany with too much coal.

The Balkans are quite fossil-heavy, but solar should be quite feasible there.