Centrica also runs other wind farms off the UK coast
Plans for off-shore wind farms in the Irish Sea are going on display at three public exhibitions.
The proposed development by Centrica Energy Renewable Investments is located 15km from Holyhead off the north coast of Anglesey.
The company, which is part of British Gas, already has other wind farms off the UK coast.
It claims the new development could provide enough power for more than 3m homes.
Neville Barltrop from Centrica Energy said the company was looking forward to the exhibitions as it wanted to "work constructively" with local people.
Holyhead town hall, Tuesday 20 April 1100-1900 BST
The Imperial Hotel, Llandudno, Conwy, Wednesday 21 April 1100-1900 BST
Britannia Adelphi Hotel, Liverpool, Thursday 22 April 1100-1900 BST
Source: Centrica Energy
"We are looking forward to meeting the public to discuss our proposals in more detail," he added.
The plan off Holyhead was first announced in January, along with nine new off-shore wind farm locations in the UK.
Backers say the schemes would create 60,000 jobs.
Further along the north Wales coast there were protests against another off-shore wind farm on Rhyl Flats, which was officially opened in December last year.
Another 250-turbine wind farm, Gwynt y Môr, has also been granted planning permission, despite reservations by some that it will spoil the view, and that wind energy is unreliable.