My Lords, I hesitate to speak to the amendment because I am not against it and I sympathise with the intentions of the noble Lords who are proposing it, particularly if it affected the price of construction timber and made housing more expensive, which would not be good. However, I advocate a bit of caution. I have recently come across a company which is trying to build four medium-sized biomass-powered electricity generating stations using brash, tops, coppice, sawmill offcuts and other non-value timber. They are putting them at different ends of the United Kingdom so they have good local sources for the timber. Each power station will be producing between 12 and 25 megawatts and will cost about £60 million. The material is sustainably sourced and will encourage the use of thinnings. For those noble Lords who do not know, thinnings are quite often not taken out because it costs more to do so than to leave them. If you could take more thinnings out it would create more high-value timber for construction or other uses.
I sympathise with the amendment but if it were applied across the board, with a generalised percentage, it would cripple a highly sustainable, beneficial biomass-generating business before it got off the ground. Before an amendment of this nature is enacted, it either needs to be reworded or we need a statement from DECC guaranteeing a flexible interpretation.