> has a goal to source the equivalent of 100% of its electricity demand from renewable energy sources by the end of this year.
> production outstripping demand on 20 out of 30 days and over the whole month providing 109 per cent of electricity demand.
Emphasis mine. This is a great summary of what really happens if you attempt to go full renewable on wind power: you don't control the supply so you need a foreign market to buy your excess production on windy days and to provide power the other days. And no, battery isn't really an option because you can have (and usually have, in anticyclonic conditions) weeks with low wind, and you won't get enough batteries to supply your country for one or more weeks. (I did a calculation for France bases on real power data 2 years ago, and it needed about 4 Tesla Model S battery per inhabitant).
> production outstripping demand on 20 out of 30 days and over the whole month providing 109 per cent of electricity demand.
Emphasis mine. This is a great summary of what really happens if you attempt to go full renewable on wind power: you don't control the supply so you need a foreign market to buy your excess production on windy days and to provide power the other days. And no, battery isn't really an option because you can have (and usually have, in anticyclonic conditions) weeks with low wind, and you won't get enough batteries to supply your country for one or more weeks. (I did a calculation for France bases on real power data 2 years ago, and it needed about 4 Tesla Model S battery per inhabitant).