[98125] in North American Network Operators' Group
Re: San Francisco Power Outage
daemon@ATHENA.MIT.EDU (Brandon Galbraith)
Wed Jul 25 00:27:15 2007
Date: Tue, 24 Jul 2007 21:57:09 -0500
From: "Brandon Galbraith" <brandon.galbraith@gmail.com>
To: "Owen DeLong" <owen@delong.com>
Cc: "Patrick Giagnocavo" <patrick@zill.net>, nanog@nanog.org
In-Reply-To: <06CAE830-C173-451D-9328-359F970DB405@delong.com>
Errors-To: owner-nanog@merit.edu
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On 7/24/07, Owen DeLong <owen@delong.com> wrote:
>
>
>
> On Jul 24, 2007, at 4:57 PM, Patrick Giagnocavo wrote:
>
> I have no idea what the root cause of today's outage is. I will be
> interested in hearing from any credible source as to any actual details,
> but, I'm betting that right now, any such credible source is a bit busy.
>
> Owen
>
>
It appears that 365 is using the Hytec Continuous Power System [
http://hitec.pageprocessor.nl/p3.php?RubriekID=2016], which is a motor,
generator, flywheel, clutch, and Diesel engine all on the same shaft. They
don't use batteries.
If the flywheels spent their energy before the generators came online, they
don't have the ability to start the generators up without utility power
(unless they purchased the Dark Start option, which is simply extra
batteries).
-brandon
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On 7/24/07, <b class="gmail_sendername">Owen DeLong</b> <<a href="mailto:owen@delong.com">owen@delong.com</a>> wrote:<div><span class="gmail_quote"></span><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
<br><br>On Jul 24, 2007, at 4:57 PM, Patrick Giagnocavo wrote:<br><br>I have no idea what the root cause of today's outage is. I will be<br>interested in hearing from any credible source as to any actual details,<br>
but, I'm betting that right now, any such credible source is a bit busy.<br><br>Owen<br><br></blockquote></div><br>It appears that 365 is using the Hytec Continuous Power System [<a href="http://hitec.pageprocessor.nl/p3.php?RubriekID=2016">
http://hitec.pageprocessor.nl/p3.php?RubriekID=2016</a>], which is a motor, generator, flywheel, clutch, and Diesel engine all on the same shaft. They don't use batteries.<br><br>If the flywheels spent their energy before the generators came online, they don't have the ability to start the generators up without utility power (unless they purchased the Dark Start option, which is simply extra batteries).
<br><br>-brandon<br>
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