§ Mr. Stunell
To ask the Secretary of State for Social Security what proportion of her Department's energy usage was from combined heating in each year since 1989–90. 
§ Mr. Field
This Department has not been able to use Combined Heating to date because feasibility studies showed the schemes to be impracticable. However, the Department fully supports environmental initiatives and due consideration will be given to the option of using Combined Heating wherever practicable.