OT Tidal power.

[harryagain]

They should really be looking at the whole Bristol Channel/estuary.

[Brian Gaff]

I was just thinking that, as in the long run it is more efficient and should enable wildlife changes to be catered for more cost effectively.

Still, you cannot tell some people.... Brian

[Nightjar]

IOW do massive ecological damage in the name of saving the planet.

[Jabba]

harryagain wrote

There's plenty of fuckwitted complaining about the lagoon. The nobs in Mumbles are upset that their view of Port Talbot will be ruined by the height of walls of the lagoon. FFS Port Talbot needs to be hidden away behind a wall.

[Jabba]

Brian Gaff wrote

Swansea trawlermen reckon the lagoon will affect the fish stock in the area. That would be the fish which haven't been poisoned by the heavy metal in the bay.

[News]

In message , "Nightjar "@?.?.invalid> writes

First time I've seen the poor old Isle of Wight being blamed ...

[Nightjar]

I blame the Vectis Nationalists.

[Chris Hogg]

Massive environmental impact and enormous cost. A better alternative surely are marine turbines. Less impact, less cost, and installable over a large part of the estuary, as you suggest. But still no leccy at slack water, the weakness of all tidal systems.

[Paul Herber]

Everyone also blames the methane output from Cowes.

[damduck-egg]

How much more can we Ryde this.

G.Harman

[The Natural Philosopher]

All tidal power is crap because the tides themselves are high entropy. Ergo massive expensive structures causing huge eco impact to achieve very little.

Once you look at entropy and energy density, assessing renewable energy is simple.

And you always get the same answer. Its all crap.

[The Natural Philosopher]

What we need is an inVentnor to come along and have An Idea

[whisky-dave]

or a Freshwater look at the situation.

[bert]

In message , Chris Hogg writes

An even better alternative is a f****** great nuke.

[Chris Hogg]

Interesting comment, which I won't claim fully to understand, although I have an inkling (thermodynamics was never my strong point!). Do you have a link or book reference that gives a bit more detail, without being too heavy or theoretical?

[Chris Hogg]

+1. Or even several.

[Nightjar]

Collect all the greenies in one place and drop one on them?

[The Natural Philosopher]

treats the energy density issue.

Entropy is really tied up in the efficiency curves. I.e there is the same energy in a red hot poker as a bath of luke warm water, but the red hot poker is a lot easier to get most of it out of.

It's lower entropy.

Mots renewable sources - wind and tidal and so on - are high entropy, so you can only get out maybe 20-40% of what's in there to start with.

And low energy density as well. So you need BIG stuff to get it.

[Tim w]

There isn't any fishing industry in the Bristol Channel any more. There aren't any 'Swansea Trawlermen'.

[Tim w]

A tidal lagoon in the Bristol Channel would fill with mud in a year. Doing the whole Estuary would just be an even more monstrous f*ck up.

Tim w