asked Her Majesty's Government:

When in 2010 the feasibility study on the use of tidal power in the Severn estuary will be published, in light of discussions over the security of energy supply. [HL5827]

Subject to internal review, interim findings from the feasibility study will be published in the new year with the full report being published in the first half of 2010.

The feasibility study will consider the impact on security of electricity supply as part of the wider assessment of options.