asked Her Majesty's Government:
What estimate they have made of the proportion of renewable energy, measured in kilowatts per hour, that could be contributed over the next five years by microrenewable installations on (a) existing buildings, and (b) new buildings.
The Energy Saving Trust undertook a study on behalf of the DTI, Potential for Microgeneration: Study and Analysis, that examines possible scenarios for microgeneration uptake up to 2050. The long-term focus of the study means that the figures it provides are for 2030 and 2050 rather than for five years' time.
We will be undertaking research this year, jointly with representatives of the microgeneration industry and other interested stakeholders, to build on the EST study and look at the potential contribution that microgeneration technologies could make to our energy needs.