Mass. starts round three of bidding for offshore wind energy contracts The winner could end up proposing a project to power 800,000-plus homes By Jon Chesto Globe Staff,Updated March 11, 2021, 7:18 p.m. Email to a Friend Vineyard Wind has picked GE's Haliade-X model. A prototype is seen in this photo.General Electric Governor Charlie Bakerâs administration has kicked off the stateâs third round of bidding for offshore wind energy contracts, and this one has the potential to be the biggest yet. State officials are soliciting bids for up to 1,600 megawatts of offshore wind electricity this time around. To put that in perspective, the Vineyard Wind development team won the stateâs first round of offshore wind energy bids in 2018, to deliver 800 megawatts to Massachusetts electricity customers. That was enough power for more than 400,000 homes. The Mayflower Wind team won the second round in 2019, with a similarly sized proposal.