"Tim Streater" wrote in message
.. .
In article , Vir
Campestris wrote:

On 14/08/2014 21:34, Tim Streater wrote:
In article , Vir
Campestris wrote:

On 13/08/2014 13:09, Tim Streater wrote:
Which will still leave you with residual ripple.

Ripple on tides? Whatever next

More seriously though - one tidal system has a power output ranging
from 0% (at high or low tide; slack water) to 100% (mid tide, peak
flow)

Two out of phase add up nicely - I think if they are true sines you'll
get 70% of peak at worst.

They have to be exactly out of phase and the same amplitude, otherwise
you get residual ripple.

You _will_ get ripple. Of at least 30%.

But the fuel is free, you can always run them at partial power.

The problem with tidal is just that there aren't enough sites.

So another not very useful offering.

Tidal power is only a part of renewable energy resources.