Now that offshore wind has a foothold in the US, it will begin the same price drop that has made solar power a game changer in so much of the country.
What a lot of renewable bashers did not get 7 or 8 years ago is that, solar did not have to be the least-cost producer to get started – it just had to outcompete the most expensive conventional power out there, – which is peak power from diesel generators and gas peaker plants – some of the most expensive imaginable sources. (sort of like that old joke about out-running the bear)
Once solar cracked the peak market (which occurs conveniently during the sunniest part of the day), the logic of markets and mass production took over, and the price slide went into overdrive.
Now the same phenomenon will take hold with offshore wind – which already employs 60,000 people in Europe.
High winds and expensive electricity make Block Island a good site for the first U.S. offshore wind farm. For the same reason, Long Island may be next.
Deepwater Wind LLC last week began towing the first of five massive steel frameworks to a site off Rhode Island’s Atlantic coast. When complete next year, the 30-megawatt wind farm will sell power for 24.4 cents a kilowatt-hour.
While that is almost tripe the 8.5 cent levelized cost for wind turbines installed on land, the project is expected to lower electricity rates by 40 percent for residentso f Bloc Island, a popular vacation destination that’s powered primarily with imported diesel fuel.
“You’ve got a unique situation with Block Island,” said Jim Bennett, renewable energy program manager wt the Bureau of Ocean Energy Management, the U.S Energy Department charged with leasing sites for offshore wind farms.
Wind turbines on land produce some of the cheapest energy available. Installing them at sea is more difficult and much more costly. That’s hindered the emergence of U.S. offshore wiind power.