Well, Tories would argue that you can't get the really big turbines onshore that you can offshore, so it doesn't really matter. Tiddly little turbines don't generate that much, and why spend lots of money on the planning process and fighting NIMBYs when you can generate it offshore?

However, it does matter, when looked at in whole with the need for capacity in the National Grid. A pile of turbines across SE England would have really helped, because a lot of the offshore wind and Scottish wind power has to be dumped, and gas generators fired up instead, due to lack of grid capacity to distribute that power across the country.

We should, of course, have completed upgrades to the grid by now, but they're late.

Here's a great article about "curtailment" as it's known: https://ukerc.ac.uk/news/transmission-network-unavailability...