[Bldg-sim] Energy end-use EUI - dormitories?

[Bishop, Bill]

Hi Carl,
Thanks for sharing your ideas!
I am finding very little data for measured plug load energy in dormitories. Total building EUI is available, from Portfolio Manager and other sources, but building EUI doesn’t help for determining plug load energy. I have been contacting campuses (in New York State) and the common response is that plug loads are not submetered in any of the buildings.
I may yet get access to some data but my approach for now is to estimate a range of plug load EUI values (6 to 12 EUI off the top of my head, based on some of my calibrated models and on the low end of the PNNL Prototype Building plug load assumptions) and then model discrete loads and schedules.
There are some drivers/trends to lower student room energy. We are designing rooms with installed ceiling lighting on occupancy sensors rather than having students bring their own lamps. Small appliances are becoming more efficient, and tablets and notebook computers are a common alternative to more power-hungry desktops. Also we’ve done away with CRT TVs and monitors. I am curious as to how much of an enterprise cryptocurrency mining is for the kids these days. The generous number of 20A receptacles we are asked to provide could support quite a computer load. I also doubt that many students are following the step-by-step instructions from EnergyStar for reducing the energy of their gaming consoles<https://www.energystar.gov/products/configuring_todays_game_consoles_use_less_energy_0>.

Best regards,
~Bill

From: carl hueske
Sent: Friday, September 14, 2018 4:28 AM
To: Bishop, Bill <bbishop at pathfinder-ea.com>
Subject: Re: [Bldg-sim] Energy end-use EUI - dormitories?

These large residential type buildings simply have too much potential for residents to wildly vary their energy usage habits as far as I understand it, and individual behavior is hard enough to gauge and train that by my understanding this is why the focus is aimed toward commercial use buildings and residential is oriented more toward providing incentives.

Dormitories especially represent a really cutting edge device usage and resident behavior profiles since these are largely individuals who've never had to deal with paying bills, while they're also pushing the envelope for usage and adoption of new technologies, so the energy usage here would just be across the board high with possible assumed growth along similar lines to Moore's Law of processing power, I'd imagine.. Large residential buildings also may include energy bills as part of the agreement, so the end-users there would essentially have no reason outside of personal motivation, do curb their behavior.

I'd imagine that access to a dataset form a source such as Energy Star's Portfolio Manager, or utilities themselves for larger urban environments, as well as campus energy managers would be potential sources which might prove fruitful. You could easily canvass campuses and find or ask for the apropos people's contact information for instance, or petition the government to provide some of this data so you could examine it for trends which could prove valuable.

Thanks!
-Carl H.


On Wed, Sep 5, 2018 at 6:01 AM Bishop, Bill via Bldg-sim <bldg-sim at lists.onebuilding.org<mailto:bldg-sim at lists.onebuilding.org>> wrote:
Hey there, simulationists, scientists and superdesigners of sustainable systems!

I’d like suggestions for sources of building energy data by end-use, to assist with design of Zero Energy Buildings. Data for dormitories or multi-family buildings would be particularly helpful. EUI data for plug loads, laundry, DHW etc. would be useful for establishing realistic allowances for loads that are largely outside of the design team’s control. EUI data for new LED lighting systems is also appreciated. Data from calibrated energy models (even if the plug loads weren’t directly measured) would be better than nothing. I haven’t seen much actual data because metering/monitoring at the individual end-use level is still far from commonplace. My projects are largely in New York State but these miscellaneous/unregulated loads should not be very weather-dependent. Any info you care to share is appreciated.

To return the favor, I’ll compile all the data that is posted or shared with me and re-post to the list!

Thanks!
~Bill

William Bishop, PE, BEMP, BEAP, CEM, LEED AP
Senior Energy Engineer

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