At present some are, but the Treasury intends to remove this privilege from all equipment eligible under the Renewable Heat Incentive and the Feed-In Tariffs. There is a consultation on this issue which closes on 31st August 2011.

The government justifies this move, saying:

the tariff levels for FITs and RHI are carefully set to provide a sufficient investment incentive, and any extra incentives to invest in these technologies is not appropriate