Re: [Vo]:Emergency Electric Curtailment event in Texas / more bull from Lutz

2008-03-26 Thread Jed Rothwell
Mike Carrell wrote: Huge and small are relative. Jed points out that wind farms may total hundreds of megawattts, having hundreds of turbines. More important, they are spread out in arrays many kilometers wide. When the wind slows down in one part of the array it will likely pick up in

Re: [Vo]:Emergency Electric Curtailment event in Texas / more bull from Lutz

2008-03-26 Thread Robin van Spaandonk
In reply to Mike Carrell's message of Wed, 26 Mar 2008 09:48:25 -0400: Hi, [snip] What is fundamentally different is that in the conventional system, the AC rotating machines are locked in synchronism with the 60 Hz grid, and if any one falls out of synch, destruction will follow. With wind

RE: [Vo]:Emergency Electric Curtailment event in Texas / more bull from Lutz

2008-03-26 Thread Jed Rothwell
Jeff Fink wrote: I was heavily involved with power station design from 1970 to 1983 for oil fired, coal fired and nuclear. I have never encountered a design where multiple turbine generators share a common boiler or reactor. That configuration must be quite rare. Ah. No doubt I was mistaken

[Vo]:Emergency Electric Curtailment event in Texas / more bull from Lutz

2008-03-25 Thread Jed Rothwell
An interesting look at a modern power distribution glitch involving wind and other generators: http://www.awea.org/newsroom/080312-AWEA-Viewpoint_on_ERCOT_event.pdf More bull from Lutz, who is promoting corn-based ethanol this week: GM's Lutz Overlooks Electricity, Favors Vast Ethanol

Re: [Vo]:Emergency Electric Curtailment event in Texas / more bull from Lutz

2008-03-25 Thread Mike Carrell
to be considered. There are no simple answers here. Mike Carrell - Original Message - From: Jed Rothwell [EMAIL PROTECTED] To: vortex-L@eskimo.com Sent: Tuesday, March 25, 2008 4:06 PM Subject: [Vo]:Emergency Electric Curtailment event in Texas / more bull from Lutz An interesting look