Automatic Demand Response

Traditionally, electrical cost savings focus on reducing bulk electrical use. This is a logical approach since approximately 60% of  the electrical cost in high-rise buildings is based on total kWh use. However, the other 40% of the cost offers great potential for savings. This 40% is based on kW demand charges. This cost is usually part of a "ratcheting rate" devised by utility companies as a method to increase electrical costs and make it extremely difficult to decrease or return to "normal" rates  after a demand spike has been set. 

3b Systems has created an automatic  demand response system (ADR) that monitors real-time kW demand and modulates equipment operation automatically to reduce kW costs by avoiding demand spikes. 3b Systems analyzes 12 - 24 months of electrical data using statistical filters to identify demand (kw) outliers as part of the initial implementation process.   Savings produced by the ADR system range between  $.05 - $.10 / sqft in high-rise buildings.  ADR implementation has many other potential benefits, such as allowing engineers to sequence large equipment without the fear of causing demand spikes. This “sequencing freedom” maximizes the time a chiller is operated at peak performance resulting in yet additional savings. This capacity affords unprecedented flexibility in equipment operation and efficiency.


  1. ADR Implementation steps:

  1. - Preliminary system and utility audit to determine ADR applicability

  2. - Detailed statistical review of electrical demand(12 -24 months of utility data)

  3. - MEP System review to identify energy conservation measures

  4. - Software implementation

  5. - Software beta testing and fine-tuning

  6. - Ongoing monthly system review


Please contact Celso Barcena for more information.

  • Celso Barcena

    With more than 20 years of experience in energy management and high rise operations, Celso is an AEE Certified Energy Manager, BOMA Certified Engineer and EPA 608 Licensed. 

  • Celso.Barcena@gmail.com
  • 323.397.1776

3b Systems