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Misc/Plug loads in Beopt

asked 2022-03-10 11:55:14 -0600

ZapplingZane's avatar

Been modeling in BEopt for a bit now and am wondering what other people use for their plug loads and what a realistic miscellaneous load looks like in an multifamily unit or even single family home. I am asking because the Misc loads in BEopt always rivals HVAC and DHW consumption. Currently using 1.0 plug load. I know they account for a lot of different loads in a home but the amount of electrical consumption seems extremely high. I know this can vary from person to person but I'd like to know if this is accurate or not. Any info or links to studies would be helpful! Thank you!

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answered 2022-03-11 07:39:58 -0600

jpierce's avatar

updated 2022-03-11 07:54:11 -0600

It is not unexpected that DHW/plug loads should dominate in large multifamily, especially in more efficient designs due to the square-cube law. I don't have any specifics but for context the help files says BEopt calculates plug-loads as 1108.1 + 180.2Beds + 0.278CFA, whereas ANSI/RESNET 301-2019 specifies individual loads in Table 4.2.2.5. The loads not otherwise covered by BEopt amount to: 413+69Beds + 0.91CFA; the first two terms are televisions (or other glowing rectangles in the modern home), and the latter is truly miscellaneous.

[edit: removed multiplying asterisks because the forum "helpfully" interpreted them as italics commands]

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Asked: 2022-03-10 11:55:14 -0600

Seen: 194 times

Last updated: Mar 11 '22