Changes to the ESS Rule that apply to implementations on or after June 19th 2024 include:

• Increased co-payments for HEER water heater and air conditioner activities from $30 to $200 (excluding GST) (Activity Definitions: D16–D21)

• New co-payments of $200 (excluding GST) for IHEAB heat pump water heater activities (F16–F17)

• Changes to baseline energy savings and adjustment coefficients for calculating energy savings for HEER water heater activities (D17–D21)

• The use of climate zone as well as system size to determine factors for calculating energy savings for heat pump water heater activities (D17, D19).

For more information, please visit IPART's Quick Reference Guide.