nanog mailing list archives

Re: HE.net, Fremont-2 outage?


From: Matthew Petach <mpetach () netflight com>
Date: Wed, 4 Nov 2009 09:56:02 -0800

On Wed, Nov 4, 2009 at 8:19 AM, Michael Holstein
<michael.holstein () csuohio edu> wrote:
FWIW: http://www.he.net/releases/release18.html

Well, they say it's a Cat unit, so probably one like this :
http://www.cat.com/cda/components/securedFile/displaySecuredFileServletJSP?x=7&fileId=1081064

How long can they go on those 3000 gallons under their current
load?

That engine is rated to consume 70.9g/hr at 50% .. so using a conservative
estimate, I'd say about 42 hours.

Wouldn't the conservative estimate be 21 hours?  (3000 gallons, 142
gal/hr at 100% load);
you'd get more hours out by guessing at what fraction of full load the
generator is
running, but anything longer than 21 hours is fudge-factor guesstimate
based, and not
to be counted on.

Cheers,

Michael Holstein
Cleveland State University

Matt


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