Featured: Williamsburg Court


334 Union Avenue
Brooklyn, New York 11211

Quick Facts

  • 16% annual electricity reduction
  • 24% annual gas reduction
  • Annual cost savings: $30,633


For years the Williamsburg Court’s boilers, which provided the heating and domestic hot water for the 59-unit building, produced excess energy losses due to its open combustion chamber design. After improving the boilers with sealed combustion equipment, installing two new high-efficiency sealed combustion boilers, upgrading light fixtures, and adding ENERGY STAR refrigerators, Williamsburg Court has now achieved a tremendous reduction in gas and electricity use.

What Makes this Property Great

  • Upgraded boilers with sealed combustion equipment and installed two new high-efficiency sealed combustion boilers
  • Lighting fixtures upgrades
  • ENERGY STAR refrigerators

Building Info

  • Project Type: Retrofit
  • Building Type: Multifamily Residential
  • Year Built: 1991
  • Property Square Footage: 66,000 sqft
  • Year Project Completed: 2012


“It is a telling sign if, after completing energy upgrades in a building, the utility company sends someone to investigate the meter for tampering due to unusually low readings. This is exactly what happened at Williamsburg Court after a May 2009 boiler upgrade.”

Building / Project Team

  • Building Developer / Owner: St. Nicks Alliance
  • Service Provider: Steven Winter Associates
  • Incentive Provider: NYSERDA Multifamily Performance Program

Case Study Information Provided By: Steven Winters Associates