Energy Modeling as a Design Tool Toward Net Zero Emissions (1.5 GBCI & AIA CE Hours)

  • Tuesday, March 29, 2011
  • 5:30 PM - 7:30 PM
  • Radisson Hotel, 200 South Bell School Road Rockford, IL 61108
  • 11


  • This discounted price is for full-time students only.

Please note that registration is non-refundable.
If you experience any registration difficulties or have questions please contact our office at 312-245-8300.

This program is closed for online registration, you may still attend the event and pay at the door.

Join the USGBC - Illinois Chapter's Rockford/Northern Illinois Branch for an Energy Modeling program: Net Zero Emissions Building: Using Detailed Energy Modeling as a Design Tool in Rockford.

An integrated design team, led by an architecture firm and energy and daylighting consultant, have determined it is possible to construct a market-rate net zero emissions Class A, 170,000 sq. ft. commercial office building in today’s market as a result of a design exercise.

The presenters will present the process and detailed energy and cost calculations that resulted in a net zero emissions design on this difficult site. The team selected a potentially developable site in midtown St. Louis, Mo., for the project. They selected this site for its challenging four-season climate, because electricity costs in Missouri are among the lowest in the country undefined a factor that challenged the team’s ability to make the design affordable undefined and because St. Louis’ electrical fuel profile is 81 percent coal.

They were able to reduce carbon emissions by 76 percent through energy efficiency strategies, with only minor additional first costs compared to a conventional office building. On-site renewable energy systems that include rooftop photovoltaic panels and solar thermal tubes reduced the remainder of the emissions balance. Detailed cost estimates illustrate that with an estimated construction cost of $223 per sq.ft., this project is marketable and affordable now.

Payback for the investment required to reach carbon neutrality compared to a LEED® certified baseline building would be 12 years if the rise in the cost of fuel outpaced general inflation by 4 percent a year. But the payback would be less than 10 years today in the many other areas of the country where electricity is more expensive.

Using an online tool created by the Weidt group, the presenters will compare payback information for various locations around the Midwest to assess the paybacks in different energy grids.

Colin Rohlfing, Sustainable Design Leader at HOK
David Eijadi, President and Founder of the Weidt Group

5:30-6:00 - Networking (Food and Beverages will be provided)
6:00-7:15 - Presentation
7:15-7:30 - Q&A/Networking

Continuing Education: This program has been submitted for approval for GBCI CE and AIA CE hours.

Thank you Alpha Controls and Services for sponsoring this event at the Birch Level!

If you are interested in Sponsoring this program, please contact Branch Chair, Mike Dudek at

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