On Thu, 10 Mar 2011 11:31:59 +0000, The Natural Philosopher wrote:

You will get far more familiar with this as more silly wind power is
added to the grid.

I'm not overly keen on this frequency based automatic load shedding
(as in switching off) either. Sounds like a recipe for grid
instabilty if you ask me. Frequency drops, lots of stuff drops off
line, Whe Hey! too much capacity frequency goes up, stuff comes back
online, frequency drops...

And how much stuff is about that can be switched off for an
indeterminate period without warning? Not a lot, storage heaters
maybe but they aren't on when there is peak demand and you could only
switch 'em off for a limited period otherwise people would be
cold(er) the next evening.

Some form of dynamic load directly controlled by the grid would work
but I'm skeptical about an open loop system.

--
Cheers
Dave.