Case Studies

QCo's energy storage and optimization platform has achieved significant energy and expense savings for large, commercial buildings.

 Demand vs Energy

 
  • Peak demand reduced up to 30%, while reducing total energy consumption, maintaining comfort, and reducing carbon.
     
  • More efficient chiller loading and operation.
     
  • Washington, D.C., commercial office building; 24x7 and 12-8 PM demand charges; flat electric rate.
     
  • Download case study summary for more details.  download

  WILLIS TOWER

 
  • Controlled 13 of 108 floors (~ 20% of the occupied space).
     
  • Reduced daytime HVAC operation by 1530 MWh with a pre-occupancy charge of only 630 MWh.  (see results)
  • Reduced chiller use; reduced chiller starts.
      
  • Participated in PJM Economic Demand Response daily.

  77 WEST WACKER DRIVE

  
  • Controlled 11 floors (~22% of the occupied space).
     
  • Reduced monthly peak demand charge by up to 30%.
     
  • Reduced monthly HVAC energy use by up to 20%.
     
  • Reduced chiller use; reduced chiller starts.
      
  • Engaged in PJM Economic Demand Response.

  55 WEST MONROE

 
  • Controlled 40 floors (100% of the occupied space).
     
  • Reduced monthly peak demand charge by 21%.
     
  • Reduced monthly HVAC energy use by up to 20%.
     
  • Implemented AHU staging strategy to improve efficiency and economy.
      
  • Implemented chiller staging strategy to reduce chiller use and reduce chiller starts.