Calls for Drax to be forced to fully disclose its biomass sourcing

Campaigners say the publication of key KPMG report must be a condition to MPs extending subsidies scheme

The owner of the Drax wood-burning power station should be forced to disclose full details of its tree consumption, campaigners have argued, as MPs review the billions in renewables subsidies the North Yorkshire plant receives.

A delegated legislation committee will decide on Monday whether to pass the government's plans to extend billpayer-funded subsidies to the country's biomass power generators, of which Drax is by far the biggest.