Incumbent Irene Durham was the highest polling of the seven candidates in the Northpower Electric Power Trust election with 12,227 votes.
She has been re-elected along with four other incumbent trustees - Erc Angelo (11,217 votes), Tony Davies-Colley (9163), Ross Provan (8959), and Bill Rossiter (8855).
Unsuccessful candidates in the election were Murray Broadbelt (6377 votes) and Don Robertson (4493).
Just over 55,000 voting forms for the triennial elections were sent out for the election, which concluded on Saturday.
The trust electoral officer, Dale Ofsoske, said the voter turnout was 26.7 per cent, down on the 29.36 per cent turnout for the 2010 election.