Thread: OT Tidal power
View Single Post
  #152   Report Post  
Posted to uk.d-i-y
Vir Campestris Vir Campestris is offline
external usenet poster
 
Posts: 2,853
Default OT Tidal power

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.

Andy