LONDON (Dow Jones)--U.K. power grid operator National Grid PLC (NGG) plans to give details of its first three applications to build more high-voltage lines in the U.K., The Sunday Times reports, citing the National Grid. At a conference this week National Grid will give details of its first three applications to the Infrastructure Planning Commission, the government body set up to oversee big planning issues. It admits that more will follow, the newspaper reports. The longest of the initial three lines would be 41 miles long and transport power from the planned nuclear power station at Hinkely Point, Somerset, to Avonmouth. It would supply much of the electricity needs for Devon and Cornwall. The second line would run 17 miles from Bramford in Suffolk to Twinstead in Essex in order to reinforce power generated by another new nuclear power station at Sizewell on the east coast. The third line, a much shorter line, would connect a new gas-fired power station at King's Lynn, Norfolk, to the grid. No costs or time line for each of the projects was disclosed by the newspaper. Newspaper website: www.timesonline.co.uk -By Alex MacDonald, Dow Jones Newswires; +44 (0)20 7842 9328; [email protected] (END) Dow Jones Newswires June 20, 2010 09:49 ET (13:49 GMT)