[Bldg-sim] NZEB Plug Load Consumption

[Jim Dirkes via Bldg-sim]

Ben,
A simple solution would be to assign diversity schedule and w/sq.ft values
which, in total, add to your kwh limit each month.
To be a bit more rigorous, you might consider:

   - Do the plug loads include cooking appliances?
   - Maintain the peak values at something realistic for the expected loads
   so demand is realistic
   - Adjust / shape the diversity schedule so peaks and monthly totals are
   maintained.


On Tue, May 2, 2017 at 4:05 PM, Kjell Anderson via Bldg-sim <
bldg-sim at lists.onebuilding.org> wrote:

> Ben,
> For a project that LMN designed (Stone34 in Seattle), the team measured
> existing plug loads at the tenant's previous space to inform the expected
> use in the new space. I believe this has been done on other projects (such
> as the West Berkeley Library) and forms a good baseline for a schedule. The
> lease for Stone34 was set up with a cap in part based on the existing
> measurements.
> -Kjell
>
> On Tue, May 2, 2017 at 9:48 AM, Ben Hollon via Bldg-sim <
> bldg-sim at lists.onebuilding.org> wrote:
>
>> I am reviewing a lease for a client interested in leasing tenant space in
>> a net zero building and the lease puts a cap on monthly plug load
>> consumption, rather than a typical W/SF allowance. I have never seen this
>> and am trying to figure out if there’s a way to model this. A standard
>> model would take a W/SF and multiply it out hour by hour based on a
>> schedule, but obviously the schedule is a guess and can’t handle the
>> nuances of computers turning on and off, accurate weekend predictions etc.
>>
>>
>>
>> I may be asking for the impossible but didn’t know if anyone had seen
>> this or had any thoughts of how to accurately (ish) predict the monthly
>> power consumption of plug loads.
>>
>>
>>
>> Thanks!
>>
>>
>>
>> *Ben Hollon, P.E., LEED AP, MBA*
>>
>> *Lankford *|* Fendler* *+ associates*
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>
> --
> Kjell Anderson
>
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-- 

James V Dirkes II, PE, BEMP, LEED AP
CEO/President
The Building Performance Team Inc.
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