Supporting Customers

Energy efficiency improves family legacy building

September 28, 2020

Marcia Ellis has owned her six-unit property in Chicago’s New City
neighborhood since 2018, but her history with the building goes back
to 1984, when her parents bought the property. When the building
ownership was transferred to Ellis from her father, she took on the
responsibility to care for and maintain the property for its mixed income tenant community.

As a new property manager, Ellis wanted to see how she could
improve her building to maintain a comfortable home for her tenants.
She started with a free energy assessment from ComEd and Peoples
Gas, which revealed opportunities for energy efficiency improvements.

Ellis moved forward with improvements including a new high efficiency boiler with controls to maintain optimal operation. The
original boiler in the building was inefficient and very old, and caused
unstable temperatures within the building.

“The new boiler, along with air sealing and insulation in the attic, really
made a difference,” said Ellis. “The living spaces were staying a little
bit warmer, and I could actually see on my thermostat that the heat
was maintaining a certain level. I haven’t had any complaints, and my
tenants have been really pleased.”

Schedule your free energy assessment today by calling 855-433-2700. To learn more, visit


"It’s been a great experience. Just to be able to see and feel the difference in the building - that was amazing. The upgrades and the boiler system all worked to control temperatures and keep the building more comfortable."

Marcia Ellis, Property Owner and Manager

Energy-saving improvements

  • High-efficiency steam boiler

  • Roof cavity air sealing & insulation

  • LED lighting

  • Bathroom and kitchen aerators

  • Pipe insulation

Estimated annual savings

  • $3,063

  • 4,659 therms

  • 255 kWhs

Project costs

  • $61,908 total project cost

  • $44, 697 in project incentives 

  • $17,211 after incentives

This program is funded by ComEd and Peoples Gas customers in compliance with state law. Terms and conditions apply. 
Estimated annual savings are calculated using 13.76 cents/kWh and 65 cents/therm. Individual cost savings are not
guaranteed and may vary based on weather, energy usage habits and rates.