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Resilient & Equitable Decarbonization Initiative (REDi)
Overview: To reach New York City and New York State’s ambitious climate targets and to reduce the barriers to decarbonizing affordable housing, HPD’s REDi program provides funding to build capacity and scale up equitable decarbonization, beneficial electrification, and resiliency within the HPD development pipeline and as outlined in HPD’s Design Guidelines. The REDi program is a long-term joint HPD-NYSERDA initiative that builds on HPD’s highly successful Retrofit Electrification Pilot and other joint programs and is an innovative model for streamlining access to financial and technical assistance from New York State.
HPD multi-family (5+ units) retrofit projects receiving city subsidy through an HPD Program are eligible to apply for REDi funding. REDi funds will be provided on a first come, first served basis until funds are exhausted. See the REDi term sheet for information about incentive stacking.
Note that all REDi projects are encouraged to seek NYSERDA’s Flextech funding to cover up to 75% of the cost of targeted energy studies. Buildings < 50,000 should consider applying to NYERDA’s SAMES program. These funds can also help offset the energy portion of an IPNA.
REDi: Existing Buildings (REDi: EB)
The REDi: EB program funds will offset the incremental cost of electrification of domestic hot water (DHW) and space heating/ cooling as well as electrical upgrades, enhanced envelope and ventilation.
- Supported Scopes: Projects will implement one, two or all three of the pre-defined REDi: EB scopes. Projects will be required to comply with all requirements as outlined in the REDi: EB Program Term Sheet, including all applicable Technical Requirements.
- Technical Support: The borrower’s project team will work closely with a dedicated REDi Technical Assistance Provider (TAP) to design and scope the project. The TAP will also participate in monitoring the construction of the REDi: EB Scope, and work with the contractor to train building residents and staff on system use and maintenance.
- Funding: Funding is sourced from the Utility System Benefit Charges (SBC) and the Affordable Housing Reinvestment Fund (AHRF). Funds will be provided on a first come, first served basis, and will be used to offset the REDi scope items. REDi: EB funding matches HPD subsidy and will be placed in the project’s servicing account alongside all other sources and may be drawn down during construction through the normal requisitions process as outlined in the REDi: EB Participation Agreement.
To Apply to REDi
Prior to the Design Consultation and as early as possible in the scoping process, the Project Team shall submit the following to HPD sustainability, at sustainability@hpd.nyc.gov, with 'REDi Application' in the subject:
- REDi Cost & Scoping Tool
- IPNA(s) for each building in the project considering conversion to heat pumps
- 2 years of utility bills (electrical, gas and/or oil, as applicable).
REDi Resources
Program:
- REDi: EB Term Sheet
- REDi: EB Participation Agreement
- REDi: EB Construction Rider
- DRAF (owner-paid utilities)
- DRAF (resident-paid utilities)- no longer required by NYSERDA
- Con Edison Authorization Form
- REDi: EB Process Steps
- REDi: EB Construction Milestones Checklist
- REDi: EB Funding Process
REDi Tools:
Design:
- FAQ: Selecting Heat Pumps for Multifamily Buildings
- FAQ: Metering Heat Pumps for Multifamily Buildings
- FAQ: Energy Apportionment
- FAQ: Heat Pump System Design Best Practices
- FAQ: Partial Load DHW Design (coming soon)
- FAQ: Roof Considerations for Heat Pumps
- Large VRFs versus Small Mini/Multi Split Heat Pumps: a Comparison
- Design Professional Guidance-Code and Zoning
- Underwriting Electric and High-Performance Buildings - HPD (nyc.gov)
- HPD Electric Heating Policy (nyc.gov)
Technical:
- HPD Building Systems Technical Requirements webpage, which includes:
- HPD Technical Requirements- Split System Heat Pump for Space Heating
- HPD Technical Requirements- Room Heat Pump
- HPD Technical Requirements- Heat Pump Water Heater
- HPD Technical Requirements- Refrigerant Management
- HPD VRF and Split System Maintenance Plan
- HPD Maintenance Service Contract Checklist
- PTHP Maintenance Plan & Service Overview
- ConEd Load Letter
- REDi Heat Pump Tracker
Mandatory Resident Resource Packet:
Resident Engagement:
- Electrification Presentation for Coop Boards (English/ Spanish)
- FAQ: What is a Heat Pump
- FAQ: What Is a Room Heat Pump
- FAQ: What is a Heat Pump for Hot Water
Case Studies:
Contact Us
For additional information about the program, please contact us at sustainability@hpd.nyc.gov


