[Bldg-sim] LEED 2009 and Retail Core & Shell EAp2/EAc1

Shanta Tucker shanta.tucker at atelierten.com
Tue Aug 26 09:18:42 PDT 2014


Christopher,
There might also be savings associated with the food service areas. Heat recovery off of the walk-in refrigeration that pre-heats the domestic hot water and energy star commercial kitchen appliances are perhaps applicable.

Depending on the climate and definitely dependent on the architecture, a transpired solar wall might be applicable for pre-heating ventilation air. Again, depending on the climate, can you naturally ventilate the circulation areas or do a mechanical assisted hybrid-system that pulls in outside air to the circulation spaces.

Best,
Shanta
--
Shanta Tucker, PE, LEED AP BD+C, ASHRAE BEMP
Associate Director

Atelier Ten
Environmental Design Consultants + Lighting Designers

45 East 20th Street, 4th Floor
New York NY 10003
T +1 (212) 254 4500 x 210
F +1 (212) 254 1259
shanta.tucker at atelierten.com

www.atelierten.com

From: Bldg-sim [mailto:bldg-sim-bounces at lists.onebuilding.org] On Behalf Of Craig Gann
Sent: Tuesday, August 26, 2014 12:11 PM
To: Jones, Christopher; bldg-sim at lists.onebuilding.org
Subject: Re: [Bldg-sim] LEED 2009 and Retail Core & Shell EAp2/EAc1

A few ideas off the top of my head....

Most Rooftop Unit manufacturers offer high-efficiency (> 90.1 min) units with energy recovery wheels and economizers with demand controlled ventilation. Malls are excellent candidates for DCV with variable occupancy levels. In addition you could go with a cool roof (depending if you are in north or south), skylights with daylight controls on common (atrium/corridor) areas as well as possibly on 2nd floor retail space. It's a bit challenging to use daylight with some retail as they often have specific color rendering values they must have to property illuminate merchandise.

Beef-up the roof and wall insulation well above 90.1 levels and use low-e skylights with high VLT as well as LED lighting. Recover condensate for watering any landscaping as well as possible rainwater harvesting on roof to use in toilets and landscaping. Large roof surface also excellent location for PV solar. If you have a parking garage that is enclosed (not naturally ventilated) consider using variable-speed exhaust fans tied to CO sensors to track auto traffic.

Many more options than you may think once you start digging into it.

Regards,

Craig J. Gann, P.E.; LEED AP
On 8/26/2014 8:50 AM, Jones, Christopher wrote:
I am wondering how much success people have had with Retail Core & Shell projects in terms of EAp2/EAc1.  It seems to me that the typical large mall (250,000 ft2 or larger) with roof top units presents little opportunity for energy savings.  I would appreciate some of your experiences.

Thanks!

Christopher Jones, P.Eng.
Tel: 416.644.4226 * Toll Free: 1.888.425.7255 x 527


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