In article o.uk, Dave
Liquorice writes
On Thu, 17 Sep 2009 01:35:51 +0100, Kennedy McEwen wrote:

Dinorwic is an impressive site, the speed that it can get synced
and
online at full power is quite amazing. But it can't run for very
long
before the water up top runs out. It's there for the peaks not the
base load.

Checkout http://www.dynamicdemand.co.uk/grid.htm

Hum interesting but I think based on a false premise that the grid
has the *exactly* the same frequency *everywhere*.

If it isn't exactly the same everywhere then some generators would be
effectively driving the others backwards as motors, with enormous power
losses through the grid. Clearly the grid is not in the same phase
everywhere, due to the inductive load, but the frequency has to be
pretty much spot on.
--
Kennedy
Yes, Socrates himself is particularly missed;
A lovely little thinker, but a bugger when he's ****ed.
Python Philosophers (replace 'nospam' with 'kennedym' when replying)