800 MW max nameplate capacity over 62 turbines, or about 6% of MA's summer generation (as of 2021.) Amazingly, the actual construction only takes a year, including the power lines which I assumed would be the time consuming piece. The next project is a similar 800 MW offshore wind project in CT, which will generate up to 14% of that state's electricity. Here's a list of planned projects in the US, which will total 19,158 MW on the East Coast alone before 2030 [1] assuming they all get built.
The only good news about all these delays is that there is a learning curve: equipment and installation prices are getting cheaper. I would assume that future incremental expansion of these facilities will be cheaper than the initial construction.
The article notes this is the first large offshore wind farm outside Europe, but 800MW is big even by European standards. There are currently only 4 operational wind farms larger than 800MW - all in the UK - and only a couple more likely to come online before this one.
The only good news about all these delays is that there is a learning curve: equipment and installation prices are getting cheaper. I would assume that future incremental expansion of these facilities will be cheaper than the initial construction.
[1] https://en.wikipedia.org/wiki/List_of_offshore_wind_farms_in...