Walgreens in Evanston

Walgreen’s goal with this project was to build a store that used replicable strategies to produce more energy than it consumed, while operating like a typical Walgreens. There were no changes in the building footprint, in equipment, or in expectations for occupant behavior. The 14,000-square-foot store opened in late 2013. In its first year, it consumed 75 percent of the energy consumed by a typical Chicago-area Walgreens store, operating at an energy use intensity of 74.8 kBtu/ft²/year. However, the goal had been to achieve an EUI of 51.8 kBtu/ft²/year. Since the building produced about 27 percent less energy than it consumed in 2014, Walgreens purchased 85,000 kW of Renewable Energy Certificates to make up the shortfall. (See Box 14.1 for a summary of project details, and Box 14.2 for the project team.) Box 14.1: Project overview https://www.niso.org/standards/z39-96/ns/oasis-exchange/table">

IECC climate zone

5A

Latitude

42.03°N

Context

Urban

Size

14,500 ft² (1,347 m²) with mezzanine

13,968 gross ft² (1,298 m²) footprint

Height

1 story plus conditioned mezzanine

Program

Retail

Occupants

15 FTE plus 30 customers (at peak)

Annual hours occupied

5,460

Energy use intensity (2014)

EUI: 74.8 kBtu/ft²/year (236.1 kWh/ft²/year)

Net EUI: 0 (with purchase of 85,000 kWh of RECs)

National median EUI ¹

Food Market: 185.5 kBtu/ft²/year (585.6 kWh/m²/year)

Retail Store: 47.1 kBtu/ft²/year (148.7 kWh/m²/year)

Demand-side savings vs. ASHRAE Standard 90.1-2007 Design Building

47% by cost

Certifications

LEED BD+C v3 Platinum

1

Energy Star Portfolio Manager benchmark for site energy use intensity

Box 14.2: Project team https://www.niso.org/standards/z39-96/ns/oasis-exchange/table">

Owner/Developer

Walgreens

Architect

Camburus and Theodore, Ltd.

Energy Consultants

G.I. Endurant Energy/Cyclone Energy Group; Energy Center of Wisconsin

Mechanical/Electrical Engineer

WMA & Associates

Structural Engineer

Anderson Urlacher Structural Engineering

Civil Engineer

Gewalt Hamilton Associates Inc.

Landscape Architect

Teska Associates, Inc.

General Contractor

Osman Construction Corporation