The right-wing multi-millionaire, who also owns The Spectator, called for the public broadcaster to be part-privatised at a Pharos Foundation event.

Two of Farage’s mayors have this week backed clean energy projects, seemingly at odds with the party’s anti-climate stance.

Boycott reflects wider concerns over the role of communications firms in protecting polluters.

Lord Offord presented a report by Kathryn Porter, which has been criticised for giving a “misleading picture” of clean energy costs.