Cape Cod Canal tidal turbine

[Doug MacIVER]

Money ok'd for grid connect. here is the web site https://www.google.com/search?q=Mar...Co&aqs=chrome..69i57&sourceid=chrome&ie=UTF-8

then tripped upon this https://www.sciencemag.org/news/201...ne-can-create-electricity-nothing-salty-water.

 

[rowerwet]

Tessa claimed he could get electricity from the ground itself, something about the motion of the electrons in an atom, not surprised to see electricity coming from water

 

[begreen]

The idea was canned locally. Hope this one is financially successful.
(broken link removed to https://www.snopud.com/PowerSupply/tidal.ashx?p=1155)

 

[rowerwet]

Got to love it when they want green energy in every poll, but want it in somebody else's backyard.
Obviously too many years of rural rednecks dying and destroying their neighborhoods so the middle class could have cheap energy has gotten them to think energy should be cheap and produced out of sight

 

[begreen]

Energy production should be reliable, long term and cost effective. The PUD assessment of tidal power did not meet these criteria in spite of strong local support. That may change as the tech develops, but for now it did not compete with hydro.

 

[peakbagger]

Throw enough of a long term subsidy onto a technology and it technically can be built, its economics that are the hard part.

 

[begreen]

I'm hoping it will be revisited in the future. We have large tidal swings here and some decent locations to situate turbines.

 

[maple1]

Had a fairly significant tidal power project here hit a brick wall hard this summer. A very sudden (from appearances) bankruptcy left local contractors & suppliers in the lurch and a just planted turbine non-operative in the water. Like, only a couple of days after it hit the sea floor, the brick wall was hit. It was controversial anyway, with a long running squabble with the local fishery & environmentalists going on. Now nobody has figured out what to do with the turbine just laying there doing who knows what.

https://www.halifaxexaminer.ca/featured/kersplash-there-goes-tidal-generation/

Just one blurb, there are lots more out there...

 

[peakbagger]

There was and may still be tidal power project in New Brunswick about 30 years ago. They dammed a bay and used the high tidal difference to run through a turbine. It worked but has significant impact on fish. There was huge project proposed in Passamaquoddy bay in the 1930s, it was going to be large public works project but I think it eventually was canceled.

The new low speed tidal units reportedly have no fish impact but the only ones I am familiar with are the ones that are built on large incentives. Putting a generator under water is major effort, any leaks and the seawater can raise havoc so the installed cost and operating cost it high.

 

[EatenByLimestone]

They've tried it on the Hudson a few times. Turbine blades keep going missing.