[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
RE: [datacenter] Generators
Your local gas supplier should be able to provide you with their track record for maintaining a steady fuel supply to your area. Usually shutdowns of a natural gas system are very rare, and in many cases utilities have no histories of having to do so. For cases where it has been shut down, you need to evaluate the reason. Many times it has not been simultaneous with a power outage...and a simultaneous power and gas outage is the required set of events required to take you down, and such events also must be longer in duration than your battery run time and at the same time not impact other requisite systems. Simulating the scenario with a state-space diagram is helpful to quantify the risk. Don't just go with a hunch or heresay, it's a calculatable risk.
The calculation also needs to be done with consideration to the rest of your system. The real goal is the highest increase in availability for each dollar you spend. Find you're availability "bottleneck" and you will know where your next dollar should go. You'll only be able to determine this if you consider the whole system.
Good Luck
Chris
Mark Costlow <[email protected]> wrote:
>We run a small ISP in New Mexico, and have decided to acquire a generator to
>add increased reliability. Our landlord enlisted a contractor to make a
>proposal, which they did.
>
>The proposal was for a generator powered by natural gas, fed by the regional
>utility, with no local reservoir.
>
>I was wondering if anyone had any opinions on the use of utility-supplied gas
>instead of locally-stored propane or diesel. My initial thoughts are that
>locally stored fuel would be better since in some types of disasters the
>utility might turn off the gas supply to prevent fires. The contractor argues
>that the local tank will run out eventually but the utility supplied gas would
>run forever.
>
>Any strong opinions one way or the other?
>
>Thanks,
>
>Mark
>--
>Mark Costlow | Southwest Cyberport | Fax: +1-505-232-7975
>[email protected] | Web: www.swcp.com | Voice: +1-505-232-7992
>
> "Education is never a waste" - Viscount du Valmont
>
>---------------------------------------------------------------------
>To unsubscribe, e-mail: [email protected]
>For additional commands, e-mail: [email protected]
>
>
--
__________________________________________________________________
Your favorite stores, helpful shopping tools and great gift ideas. Experience the convenience of buying online with Shop@Netscape! http://shopnow.netscape.com/
Get your own FREE, personal Netscape Mail account today at http://webmail.netscape.com/
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]