Gib Bogle wrote:
Tim Watts wrote:
Seriously... At least it seems more potent, or less impotent than wind
power. There is always demand, so I presume this means they can ramp
the gas generators down a bit which is a good thing.

On paper, tidal power is very appealing. The energy density of moving
water is very high.

No, its very low.

But as far as I'm aware there is still no
commercially viable (i.e. profitable) tidal current turbine facility in
operation. I'm referring to a turbine that is just plonked down in a
spot with high currents, not to a facility with a dam and/or gates.


That's because its almost certainly not viable on cost grounds, and no
one wants to spend the money to make sure.

The marine environment is very challenging. Highly corrosive, teeming
with life, very high loadings, unfriendly to workers.

Precisely