> >That's interesting, but suprising. Now, correct me if I'm wrong, but... > >Every generator set that contributes to the grid has to be running in >perfect frequency and phase with the grid. Therefore, if immense loading on >the grid would slow down the frequency, it must correspondingly slow down >all of the connected generator sets and in turn, the turbines or engines >that drive them. Which seems odd. This was Oahu, Hawaii. We had a "grid" consisting of two generators. Still, Oahu in the 70's was as civilized as it could get. :) We had a large blackout and weeks of "rolling blackouts" after a cane fire shorted a transmission line, leading to an amusing industrial control incident that left us with one generator having a bent turbine shaft. I think you need way more than two plants, to use a grid approach, so that any one plant can go offline without causing overloads elsewhere. "you take the load".. "no YOU take it", "ok, I've got it", "Ouch overload, you take it"...... BANG.. Darkness falls. Geckos chirp.. -- http://www.piclist.com hint: To leave the PICList mailto:piclist-unsubscribe-request@mitvma.mit.edu