nanog mailing list archives

RE: overages for power usage


From: Kenny Taylor <kenny.taylor () kccd edu>
Date: Fri, 21 Sep 2018 13:56:27 +0000

We would typically order a 20 or 30-amp 208v circuit per rack for a flat fee then install a metered PDU to make sure we 
didn’t overload it.  The flat fee per-circuit seems pretty standard in the US.  Using your own metered PDU would help 
predict the usage if you’re being billed by kWH.

Kenny

From: NANOG <nanog-bounces () nanog org> On Behalf Of Baldur Norddahl
Sent: Thursday, September 20, 2018 11:34 PM
To: nanog () nanog org
Subject: Re: overages for power usage

The fuses might match what you ordered. If you go over you might lose power due to a blown fuse.

When there is A and B power for redundancy, you need to make sure that one side can take the whole load without blowing 
any fuses. Otherwise you have no redundancy.

Regards

Baldur


fre. 21. sep. 2018 04.12 skrev Alan Hannan <alan () routingloop com<mailto:alan () routingloop com>>:
What kind of typical overage costs have you seen when a customer/you use more than you've committed to?

I'm especially interested in datacenter power situations, where maybe you sign up for 5kw or 500kw and use more than 
that in a given month.  Is it billed at the same rate?  Is it billed at a higher rate?  What's the % increase of the 
higher rate versus the regular rate?

Thanks!

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