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Energy Efficiency

NYC Clean Heat has transitioned into the NYC Retrofit Accelerator, New York City's new one-stop resource for energy and water efficiency. Learn more at

Energy Efficiency

New York City has created some of the most ambitious policies in the country to improve the energy efficiency of its buildings. In 2013, NYC Mayor Bill de Blasio committed to reducing citywide greenhouse gas (GHG) emissions by 80 percent from 2005 levels by 2050 (80x50). At the same time, he released One City: Built to Last - Transforming New York City's Buildings for a Low-Carbon Future as a ten-year plan to improve the energy efficiency of public and private buildings and place the city on a pathway to 80x50. 

As part of One City: Built to Last, the City committed to creating the NYC Retrofit Accelerator as a one-stop resource to help building owners and operators invest in energy and water efficiency upgrades in their properties. NYC Clean Heat has now transitioned into the Retrofit Accelerator.

Mayor de Blasio's goals build on the progess of policies created over the last several years. In 2009, the City enacted a suite of energy efficiency laws, collectively known as the Greener, Greater Buildings Plan, that require the City's largest buildings to take steps to improve their energy efficiency.

More than 80 percent of the buildings are required to convert No.4 heavy heating oil are required to comply with the Greener, Greater Buildings Plan laws. Implementing energy efficiency measures at the time of a heating oil conversion helps improve equipment performance and realize greater cost-savings.

Some high-impact, low-cost energy efficiency measures that your buildingmay want to consider when converting to cleaner fuels include:

  • Installing a heat management system (indoor temperature sensors),
  • Installing burner and draft controls to help increase the efficiency of your boiler,
  • Replacing steam traps to reduce steam leaks and increase comfort,
  • Regulating heat distribution by adding or replacing radiator shut-off valves,
  • Installing pipe and boiler insulation to reduce standby losses,
  • Undertaking weatherization techniques to improve building efficiency and reduce wasted heat, and
  • Testing the combustion efficiency annually to ensure your boiler is operating appropriately.

Buildings may also consider undertaking deeper energy efficiency measures, which can include:

  • Balancing your heating system properly and installing heating zones to allow you to heat only the space being used,
  • Installing a separate hot water system for summer months to avoid firing a large boiler,
  • Downsizing the boiler capacity,
  • Installing a cogeneration system to increase thermal efficiency, and
  • Installing a solar thermal system to meet your building's hot water needs.

Contact the NYC Retrofit Accelerator to find out more about the energy efficiency measures that may be right for your building. The Retrofit Accelerator's team of efficiency advisors will help you with every step of the energy efficiency retrofit project, which includes selecting efficiency projects, hiring contractors, completing City permitting, and navigating financing and incentive options.

Learn more at