Question

To ask the Secretary of State for Energy and Climate Change, which biomass power stations are totally dependent on clean wood rather than waste wood.

In 2009 the Renewables Obligation Order introduced the requirements for generating stations using biomass fuels to report against sustainability criteria. The dataset for the fourth reporting year (2012-2013) against these criteria has been published, and details the types of biomass used:

https://www.ofgem.gov.uk/publications-and-updates/biomass-sustainability-dataset-2012-13.