Emerald Energy All-In-One Select 220L (HPA1-S220)
Rebates up to
$1,580
STC $680 · VEEC $850 (VIC) · ESC $900 (NSW)
Replace-electric, medium household, best zone. Enter your postcode below for exact figures.
VIC Solar Homes rebate
$1,000
50% of installed price, point-of-sale. Stacks with STC/VEEC above.
VIC only. Assumed eligible, not confirmed against the live Solar Victoria product list.
AS/NZS 4234 energy savings
83%
vs the standard's reference electric storage water heater, medium household, best zone.
Register data as at CER (STC) 2026-04-30 · VEU 2026-07-01
Specifications
| Type | Integral all-in-one |
| Refrigerant | R290 |
| Tank volume | 220 L |
| Tank material | Enamel, 2.5mm tank wall, 3.0mm dome |
| Rated heating capacity | 2.8 kW |
| Rated power input | 0.68 kW |
| COP | 4.19 (Standard mode, test condition ambient 20/15 degrees C, water 15-55 degrees C) |
| Sound level | 50 dB(A) |
| Hot water delivery | 55 °C |
| Operating ambient | -7 to 46 °C |
| Tank height | 1750 mm |
| Heat pump weight | 118 kg |
| Electric backup | None (heat pump only) |
Certified to
Specs from: Emerald Hot Water Heat Pump All-In-One Select product data sheet (emerald.com.au, 2025.10); public CER SRES / VEU / ESS registers.
Certificate rebate by postcode
Registered certificate values
Every scheme this model is registered for, by zone. STCs at $40, VEECs at $85, ESCs at $30 (reference prices as at 2026-07-07). Claim year 2026, medium household.
SRES — STCs (national)
| Zone 1 | 13 STCs | $520 |
| Zone 2 | 13 STCs | $520 |
| Sydney (Z3) | 16 STCs | $640 |
| Melbourne (Z4) | 17 STCs | $680 |
| Canberra (Z5) | 17 STCs | $680 |
VEU — VEECs (Victoria)
| Zone | Repl. electric metro / regional | Repl. gas | Energy savings |
|---|---|---|---|
| Melbourne (Z4) | 9 / 10 | 9 | 82.8% |
| Canberra (Z5) | 9 / 10 | 8 | 81.5% |
ESS — ESCs (NSW)
| Zone | Repl. electric metro / regional | Repl. gas metro / regional | Energy savings |
|---|---|---|---|
| Sydney (Z3) | 28 / 28 | 13 / 13 | 75.0% |
| Canberra (Z5) | 29 / 30 | 14 / 13 | 72.3% |
Certificate counts are computed from the model's registered performance data using the current regulated equations. A lodged claim depends on the specific installation, household size, and the scheme rules in force at creation. Energy savings % is against the AS/NZS 4234:2021 reference electric storage water heater for that zone, medium household, calculated from the model's registered performance data.
The Emerald Energy HPA1-S220 is an all-in-one heat pump water heater: the R290 compressor and heat exchanger are built into the same cabinet as the 220 L tank. This variant ships without the electric heating element, so Standard and Boost modes both run on the heat pump alone, delivering 2.8 kW of heating at a 0.68 kW power input (COP 4.19) at the ambient 20/15 degrees C DB/WB, 15-55 degrees C test condition. Sound level is 50 dB(A) at 1 m.
The unit carries a 350 g R290 charge, a GMCC non-inverter rotary compressor, and an enamelled inner tank (2.5 mm wall, 3.0 mm dome) rated to a default set point of 54/55 degrees C and a maximum heat pump outlet of 70 degrees C. Without the electric element fitted, the working ambient range is -7 to 46 degrees C. Built-in Wi-Fi connects to the Emerald app for remote monitoring and control.
The HPA1-S220E variant is the same physical unit with a 1 kW electric heating element added, and has its own entry in this database.
Registered model codes
HPA1-S220
Homeowners
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