Because "as far as possible" is not enough. Even if you ignore that off shore power is a good bit more expensive to build, there is just not enough room there w

Because "as far as possible" is not enough. Even if you ignore that off shore power is a good bit more expensive to build, there is just not enough room there with current technology. And, by the way, the ocean deserves just as much protection as the mountains. Building offshore wind parks is not exactly good for the local wildlife there either.