[Bldg-sim] 90.1-2013 vs 2015 IECC Performance Path Compliance

Mon May 2 11:37:10 PDT 2016

Good point, should have included section 10 in the must-read list!  Thanks!!

*Elizabeth Gillmor  PE, BEMP, LC, LEED AP*

*e n e r g e t i c s  **consulting engineers, llc*
energetics-eng.com | 303.619.0091

On Mon, May 2, 2016 at 12:34 PM, Jones, Christopher <
Christopher.r.Jones at wspgroup.com> wrote:

> Elizabeth,
>
> Don’t neglect Section 10 – it also includes mandatory provisions for whole
> building metering – all fuels. Measurements are to be taken every 60
> minutes and reported hourly, daily, monthly, annually. The system shall be
> capable of storing the data for 36 months.
>
>
>
>
>
>
>
> [image: cid:image003.png at 01D09C46.E75BA0D0]
>
> *Christopher Jones,* P.Eng.
> Senior Engineer
>
>
>
> *WSP Canada Inc.*
>
> 2300 Yonge Street, Suite 2300
>
> Toronto, ON M4P 1E4
> T +1 416-644-4226
>
> F +1 416-487-9766
>
> C +1 416-697-0056
>
>
>
> www.wspgroup.com
>
>
>
> *From:* Bldg-sim [mailto:bldg-sim-bounces at lists.onebuilding.org] *On
> Behalf Of *Elizabeth Gillmor via Bldg-sim
> *Sent:* Monday, May 02, 2016 1:38 PM
> *To:* Duggin, Cory
> *Cc:* bldg-sim at lists.onebuilding.org
> *Subject:* Re: [Bldg-sim] 90.1-2013 vs 2015 IECC Performance Path
> Compliance
>
>
>
> I just did a little seminar on this very topic for our Rocky Mountain
> ASHRAE tech conference last week.  There are a few other key differences in
> 90.1:
>
>
>
> - Mandatory occupancy and daylighting controls in parking garages
>
> - Bi-level occ sensors required in stairwells
>
> - Slightly more stringent cooling efficiency requirements (full load and
> part load, also slightly lower economizer thresholds). Differences in heat
> pumps as well I believe.
>
> - More stringent envelope requirements (walls and windows). Also note
> limits to E/W glazing which may require that you rotate/average the
> baseline.
>
>
>
> Other important items to note:
>
>
>
> - A90.1 has MANDATORY electrical submetering requirements (separate
> monitoring for lighting, receptacles, and HVAC, plus some whole-building
> requirements) -- this is a biggie. Read section 8-Power thoroughly!
>
> - You CAN take credit for renewable energy (up to 5%)
>
> - A90.1 does not have the same commissioning requirements
>
> - A90.1 allows extra lighting credit for room geometry adjustments and
> some extra lighting controls (see control factor table), whereas IECC does
> not
>
>
>
>
>
> This is not a comprehensive list but those are the big ones that jump
> out.  Whichever method you choose, make sure you are using the
> space-by-space method for lighting (it will almost always come out better
> than whole-building).
>
>
>
> Cheers,
>
> Elizabeth
>
>
>
>
> *Elizabeth Gillmor  **PE, BEMP, LC, LEED AP*
>
>
>
> *e n e r g e t i c s  **consulting engineers, llc*
>
> energetics-eng.com | 303.619.0091
>
>
>
> On Mon, May 2, 2016 at 11:08 AM, Duggin, Cory via Bldg-sim <
> bldg-sim at lists.onebuilding.org> wrote:
>
> Does anyone have experience showing code compliance via the performance
> path in 90.1-2013 vs 2015 IECC?  I have a project that isn’t meeting the
> 15% threshold against the 2015 IECC standard reference design (per
> C401.2(3)).  I have always thought the 15% was to level the compliance
> paths, but the main difference I am finding between the 2015  IECC SRD and
> 90.1-2013 budget building is the mandatory plug load control requirement.
> What am I missing to account for the 15% difference?
>
>
>
> Thanks,
>
>
>
> *Cory Duggin, PE, LEED AP BD+C, BEMP*
>
> *Principal/Energy Modeling Wizard*
>
> *TLC Engineering for Architecture*
>
> 6 Cadillac Drive, Suite 200
>
> Brentwood, TN 37027-5080
>
>
>
> direct:
>
> 615-346-1939
>
> website:
>
> www.tlc-engineers.com
>
>
>
>
>
>
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