asked the Secretary of State for Energy what the annual expenditure by his Department for renewable sources of energy has been for the period 1979 to 1986.
Expenditure on my Department's programme for research, development and demonstration into renewable sources of energy during the period 1979 to 1986 including external contributions is set out in the table:
(1) Where available figures include expenditure on waste as a fuel and passive solar under the energy efficiency demonstraton scheme; contributions from external contractors and the European Commission.
(2) Information on spend by contractors is estimated from the contractual link with Department spend in many cases and thus may not he exact. In particular, it may be a few months out in its allocation and therefore spend from one year may have been moved to another year.