The UK itself doesn't make or do any big projects anymore.
My friend lives directly next to a new solar farm being installed. He tells me the company installing it is Greek, virtually all the staff are foreign, all the kit is Chinese, solar panels, transformers etc.
Why couldn't a British company do that, even if they had to source the materials from abroad.
Better still we(UK) could have made the products too, there are several solar panel makers in the UK.
No profits for UK companies or work for British people