A wind farm in Gozo was always planned to be incorporated in the Eco Gozo project, the Ministry of Resources and Rural Affairs said.
It was reacting to Labour's request for it to speak clearly on alternatives to the offshore wind farm project on Sikka l-Bajda, off Mellieħa.
The ministry referred to the Gozo project when asked to comment by The Sunday Times on the discovery of several underwater caves beneath the surface of the reef off Mellieħa and which could jeopardise plans to install windmills there.
Opposition environment spokesman Leo Brincat said it was strange for the government to indicate all of a sudden that it was considering a large wind farm not far from the Gozitan coast when it had always held back from studying the wind speeds of the site.
Mr Brincat also accused the ministry spokesman of ridiculing the proposal of environmentalist and physics lecturer Edward Mallia, only to later tell the media that the proposal was not being excluded.
The website of Eco Gozo makes no reference to the possibility of wind farms, but the ministry has insisted that it has always maintained its position on this matter.
It placed the onus on the opposition to take a stand on the matter and say whether and where it would build a wind farm in Gozo since it claimed to have concluded a strategy on wind farms, drawn up by experts.
The ministry also criticised Labour leader Joseph Muscat for "frightening" people in Baħrija by saying that a wind farm would ruin the water table.
In the Sunday Times article, Mr Brincat said that had it not been for such reports, the public would not have known about the potential structural and geological problems linked to the Sikka l-Bajda site.
The ministry said that the environmental impact assessments on two onshore sites, one in Baħrija and the other in Ħal Far, would start in the coming days, along with the study on the offshore wind farm at Sikka l-Bajda.
It wondered whether Mr Brincat was expecting geological studies to be carried out all over the island at the taxpayer's expense.
Mr Brincat has also called on the government to explain what other methods it would use to reach its EU targets.
He added that by the end of this month the government was obliged to give the EU a concrete plan of action, so within two weeks the people were expecting to know what the government's targets were.