Backlog the company's definition10 Jun 2022 19:41
" The group also said it had a "record backlog" of work, which stood at 755 mw as at the start of June, a 53% increase since the start of the year. Year-on-year, the backlog is 160% higher. Of that, 75 mw is contracted, 342 is in negotiation and 338 mw is preferred supplier."
So only 75mw is contracted. The balance is fingers crossed. Hope this helps with clarification.
Cheers