The following equipment and/or systems shall meet the following criteria to be eligible for multifamily incentives, unless otherwise approved by the Energy Solutions Team. All equipment shall be certified by Underwriters Laboratories (UL), Electrical Testing Laboratories (ETL), Canadian Standards Association (CSA), or an equivalent third-party agency to all standards required by local and state code.



Residential Tank Type and Split HPWH


  • 240v Residential HPWHs: Multifamily requirements shall align with standard single-family HPWH incentive requirements. Unless otherwise changed, all units must be qualified as NEEA Tier 3 or JA13 compliant.
  • 120v “Plug-In” Residential HPWHs: All units are eligible, regardless of NEEA tier.
  • Thermostatic mixing valves (TMVs) must be installed on the HPWH for all TECH and Central Coast Community Energy (3CE) claims created on or after June 20, 2022. With the new thermostatic mixing valve (TMV) installation requirement for HPWHs, contractors must install a 1017 ASSEE certified thermostatic mixing valve (TMV) on all HPWH's. Therefore, all claims created on or after June 20th must include these additional photos:
    • A close-up photo of the installed TMV
    • A zoomed-out photo of the installed HPWH showing the TMV


Central HPWH


Central HPWH systems and associated equipment (systems serving >1 dwelling unit) that do not meet the 240v HPWH NEEA Tier 3 or 120v "Plug-In" definitions above shall be eligible as long systems meet each of the following requirements:


  • Systems are 100 percent electric. No energized fossil fuel auxiliary systems; offline fossil fuel backup equipment with water pipes valved off and equipment de-energized at time of installation are acceptable. Backup fossil fuel equipment shall only be used in short term hot water emergency situations.
  • For reservations signed on or after March 1, 2022, qualifying central HPWH systems must be listed on the QPL in accordance with the NEEA v8 Advanced Water Heating Specification. Reservations approved prior to March 1, 2022 using the equipment qualification versions in effect at that time shall be honored.
  • Thermostatic mixing valves (TMVs) are required on all HPWH systems receiving multifamily incentives. The TMVs can either be embedded within the unit or as a separate addition.


Commercial HPWH Serving Common Area or Communal Spaces


  • NEEA Tier 3. TMVs are required on all HPWH systems receiving multifamily incentives unless otherwise approved by Energy Solutions.


Heat Pump Pool and Spa Heaters

  • 100 percent electric systems (no natural gas or propane auxiliary systems). The system shall have a rated COP of ≥ 4.0 at 50F AT, 63 percent RH, and 80F WT in accordance with AHRI Standard 1160.