nanog mailing list archives
Re: HE.net, Fremont-2 outage?
From: Raphael Carrier <raphael.carrier () gmail com>
Date: Wed, 4 Nov 2009 17:08:17 -0500
I know you have a rather higher faith in batteries than some of us, but practical experience suggests that batteries are merely a mostly- reliable technology.
Agreed batteries are unreliable, an alternative to battery based UPS are flywheel energy storage devices, they come either as an integrated solution with the diesel generator (i think cat offers such a package) or as a standalone UPS (see: www.pentadyne.com/uploads/18/File/Pentadyne-VSS-Brochure.pdf) another vendor is Active Power (which i think partners with cat) They seem to be MUCH more reliable than batteries from what i read HE probably acquired one of those solutions -Raphael Carrier
Current thread:
- Re: HE.net, Fremont-2 outage?, (continued)
- Re: HE.net, Fremont-2 outage? Michael J McCafferty (Nov 03)
- Re: HE.net, Fremont-2 outage? Lyndon Nerenberg (VE6BBM/VE7TFX) (Nov 03)
- Re: HE.net, Fremont-2 outage? Max Clark (Nov 03)
- Re: HE.net, Fremont-2 outage? Michael Holstein (Nov 04)
- Re: HE.net, Fremont-2 outage? Matthew Petach (Nov 04)
- Re: HE.net, Fremont-2 outage? Joe Greco (Nov 04)
- Re: HE.net, Fremont-2 outage? Seth Mattinen (Nov 04)
- Re: HE.net, Fremont-2 outage? Joe Greco (Nov 04)
- RE: HE.net, Fremont-2 outage? Alex Rubenstein (Nov 04)
- Re: HE.net, Fremont-2 outage? Joe Greco (Nov 04)
- Re: HE.net, Fremont-2 outage? Raphael Carrier (Nov 04)
- Re: HE.net, Fremont-2 outage? Scott Howard (Nov 04)
- Re: HE.net, Fremont-2 outage? Joe Greco (Nov 04)
- Re: HE.net, Fremont-2 outage? Scott Howard (Nov 04)
- Re: HE.net, Fremont-2 outage? Owen DeLong (Nov 04)
- RE: HE.net, Fremont-2 outage? Bryan King (Nov 04)
- Re: HE.net, Fremont-2 outage? Robert Mathews (OSIA) (Nov 04)
- Re: HE.net, Fremont-2 outage? Joe Greco (Nov 05)
- Human Factors and Accident reduction/mitigation Owen DeLong (Nov 05)
- Re: Human Factors and Accident reduction/mitigation Robert Boyle (Nov 05)
- Re: Human Factors and Accident reduction/mitigation Michael Peddemors (Nov 05)