The only reason the wind farms got built was because they got guaranteed a high price of electricity that took the risk out of it. This changed more recently which is why building stopped.

Another factor is in the UK everything below the average tide line is owned by the Crown (as in the King not the government) who were very happy to get lease income. The Govt was also happy so it didn't look like the people were funding the King (which they are).

Also the public are very against wind turbines on land which is reasonable in England where there isn't much isolated land to put them.

At least they got built, which is more than can be said for the nuclear plants.