Since nobody else has posted here I seen no need to start a new thread for ther same subject.
The interest for tidal power is still there:
I canât see tidal turbines competing with steam turbines. This argument was resolved over a century ago.
A century ago!! That must have been Aussie tidal turbines. Where did they put those, in Broom, Wyndham, or ???
Any refr.??
Australianâs havenât been stupid enough to try tidal power ⌠yet. Wyndham and Broome have big tides but why bother? Hardly anybody lives there and a good diesel plant can deliver all day, every day.
We have been stupid enough to try wave power and this is the usual result.
And this is the revolution to which I referred that consigned water-driven machinery to the museum ⌠where it will stay.
We tried batteries as well. Big ones. They burn well ⌠even before we could use this one.
The not-so-subtle subtext you keep missing is that nothing âgreenâ ever works. It just doesnât. It wonât, despite your advocacy.
What do you mean âNOBODYâ??
In Broom the estimated urban population was 13,984 in August 2016.
It is a major port in the area:
Wyndham is also a port and the service centre for the east Kimberley, with a population of 780.
I havenât been there since 1970, but at the time the ship was dry at low tide:
Canât remember which of the two, but one had a hotel called Victoria that allowed females into their pub. For that reason there was a sign that said:
âGentlemen, Shirt and Shoes after 6 oâclock, pleaseâ
PS> It didnât say anything about females entering in bikini, though.
Use of the word âgentlemenâ doesnât strike me as typical of either town. I know all the pubs in both towns and perhaps you are mistaking your ports for Darwin where thereâs a classier Hotel Victoria not far from the Stokes Hill Wharf. It still has punkahs overhead to circulate the hot air (but not operated by a punkah wallah these days). Itâs the only pub in Australia I know of with this feature.
Broome and Whyndam were a bit more of frontier towns and rough places in 1970. I certainly would not have recommended walking around the ship when grounded at the wharf as the nearby local meat works attracts lots of crocodiles along that shore.
I have fond memories of the Roebuck Bay Hotel in Broome in those days. It was a corrugated iron shack with air openings (windows) covered in gridmesh. No glass was allowed. Beer came in steel cans and consumed on the road outside (within the boundary of the white painted line). Shoes and shirts were optional and the females certainly werenât ladies. It was loud and lively. They hosed it out each day. Itâs more upmarket and touristy today (bits of the tin shack are still there) and the blokes sit there with a beer as their ladies shop for local pearls across the street.
The top image is how I remember it.
Could be. It has been a while since I was in Broom and Wyndham. (Darwin, not that long ago)
The largest âsaltiesâ I have ever seen was not in WA, or NT, but in Port Alma, near Rockhampton, Ql. They were sitting under the outlet from the nearby Meat Packer with their mouths open. (Also back in 1969/70)
Well, letâs hope they will work and prove themselves more than show off to the greenies. 
Tidal Turbine. Great name for a band. Contact me for the copyright. Rock on, gCaptains!
There was a tidal generator built at Lurline Bay between Maroubra and Coogee Beaches in Sydney.
It was bult in 1929 and was hoped to power the local houses. When I was a kid, we would play and fish near the channel cut out of the rock shelf for the turbine. That was all that was left of it by the 50âs/60âs.
sorry to be pessimistic but many of these new ideas donât seem to take into account the hell machinery like this goes thru. just one idea pops up: how about 20 ft. seas or more rolling ashore, those blades are going to put out some serious power before they snap off or get slammed into the bottom? does that thing work submerged? and there is a lot of lull time before the tide switches, similar to solar panels at night, or wind turbines with no wind. itâd all be fine if we had battery tech 10x better than what now exists.
The machinery aspect is not that big of a deal. The technology exists. Semi subs have handled the forces for years. But the NIBY aspect is another problem. Where can you put them where people donât object and still make the transmission to shore cost effective? There are a lot of good ideas about converting existing energy to electricity and it will come to pass but battery storage hasnât gotten to where it needs to be to make some projects worth investing inâŚyet.
There was one design that the wave action pumped water ashore and the actual machinery was ashore that sort of made sense. I think they were trialling it in Western Australia. Not to many NIMBYS around Cape Leeuwin.
There have been attempt to use tidal differences to produce energy many time and many different ways. Most have been by building tidal dams, flooding them on high tide by various methods and using the outflowing water to drive generators.
Or placing barriers across narrow sounds or estuaries, to harness tidal flow, both on rising and falling tides: ELI: Energy: Support Materials: Tidal Energy
What is new is using either floating or bottom supported turbines to harness the natural tidal flow, without any major dams/barriers.
