Reducing the electrical load in NYCHA buildings

Sustainability Problem: Energy

The New York City Housing Authority pays resident’s utility bills in 27 developments, a total of 166,952 units and 1,979 buildings, which add up to $180 million yearly. Demand has been the main driver of the utility cost increase witnessed by NYCHA in the past year, with consumption remaining stable. The authority faces many deep challenges, including increasing maintenance demands, declining funding, and aging housing stock, which make extensive energy retrofits difficult to fund. In this context, NYCHA would like solutions to manage electricity demand and in turn reduce electricity costs without having to replace building systems entirely.

 Technology: Smart sensors on window-mounted air-conditioning units

  • To cut down on usage, H.T. Lyons and Consolidated Energy Design proposed installing sensors that regulate the air-conditioning compressor during peak energy usage, when watts are more expensive, while keeping the unit on and residents comfortable.
  • The companies estimate that this technology can reduce energy demand of air conditioners by 40 to 60 percent when demand is highest.


  • NYCHA and its residents
  • Utility company
  • Local government
  • T. Lyons and Consolidated Energy Design


  • NYCHA is currently working with H.T. Lyons and Consolidated Energy Design to implement their solution as a small-scale pilot projects that will range from 3 months to 1 year
  • The companies will install the solution at their own expense to demonstrate the benefits of the solution
  • At the end of the pilot, the Authority will evaluate the impact of the technology and, if successful, it may be applied NYCHA-wide


Suellen Aguiar – ss5195


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