I've never found them to be particularly obtrusive, personally. Of course, Åland is fairly sparsely populated area (27,000 inhabitants), so you don't need a whole lot of wind turbines to meet the electricity demands of the whole area.
That said, the new wind farm mentioned in the diary isn't being constructed in anyone's way anyway; they're being constructed in a former mining area!

"The basis of optimism is sheer terror" - Oscar Wilde