Telegraph: Britain’s so-called “dash for wind” means that it is now the biggest off shore generator — producing as much as the rest of the world put together. But costs of building the farms have doubled due to spiralling prices for steel and the drop in the value of the pound. The report found that costs have risen for all kinds of generation but off shore wind farms remain by far the most expensive — 90 per cent more than fossil fuel generators and 50 per cent more than …