The deadline for submissions was yesterday.

The gas-fired plant was reduced from 210 megawatts, capable of backing up the ACT's power, to 28MW in May after residents complained about noise and air pollution.

Canberrans for Powerstation Re-location submitted a 140-page document outlining their concerns about the project. The spokesman for the group, Simon Byrne, said it hoped the ACT Planning and Land Authority would request an environmental impact study.

''We still have concerns about the location of the development.''

The site selection of the gas power station has been a contentious issue, with Chief Minister Jon Stanhope surviving a no-confidence motion over his handling of the project.

Two high-ranking government officers admitted misleading an ACT Government estimates committee hearing on the project and have since apologised.

ActewAGL's first choice for the project was on industrial land in Hume, but the project was subsequently shifted to neighbouring Tuggeranong, triggering an outcry from surrounding suburbs.

Since then the Government has distanced itself from site selection, saying ActewAGL chose the site.

Mr Stanhope denied claims made by the Opposition that the Government's Land Development Agency had steered ActewAGL away from its preferred site

Former chief executive officer of ActewAGL John Mackay said that although ActewAGL had preferred the Hume site since 2002, he had chosen another one, at neighbouring Tuggeranong, not because he had been steered away from the Hume site, but because the Tuggeranong site had better access to high-voltage power lines, was cheaper and would be free from National Capital Authority planning oversight.