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Cost to run a heat-pump hot water system in Tasmania (2026–27)

TAS reference tariff · 28.0c/kWh

$0.36 per hour at 1,300 W

Typical use (2.5 kWh a day) ≈ $255/year on the TasNetworks rate.

Source: OTTER-approved Aurora Energy Standing Offer 2026–27 (approved 25 June 2026) — Tariff 31, effective 1 July 2026

Heat-pump hot water cost in TAS at 4 h/day, 365 days/year (28.0c/kWh)
Model bandPer hourPer dayPer monthPer year
Efficient (900 W)$0.25$1.01$30.59$367
Typical (1,300 W)$0.36$1.45$44.19$531
High (1,900 W)$0.53$2.12$64.58$775

The headline annual figure uses this appliance's measured energy per use (2.5 kWh per day (typical household)) rather than a constant draw — the table shows constant-draw costs at your chosen hours.

Appliance running-cost calculator

TAS

Heat-pump hot water: 900–1,900 W typical range.

The compressor runs ~2–4 h/day, often timed to solar or off-peak.

$0.36 per hour · $531/year at your settings
Per day (4 h)
$1.45
Per month
$44.19
Per year (365 days)
$530.56

Tariff: 28.0c/kWh — OTTER-approved Aurora Energy Standing Offer 2026–27 (approved 25 June 2026) — Tariff 31 for the TasNetworks network, effective 1 July 2026. Wattage basis: Hot Water Hub — heat pump running costs. Full heat-pump hot water costs in TAS →

The same appliance in other states

Cutting the cost

A heat-pump system pulls warmth from the surrounding air, so it uses a fraction of the power of a plain electric element. Give it clear airflow and keep it out of tight, cold enclosures. If you have solar or a cheaper daytime rate, timing the heating cycle for the middle of the day pairs it with warmer air and your own generation. Keep the air filter clean.

Frequently asked questions

What does a heat-pump hot water cost per hour in TAS?
$0.36 at the typical 1,300 W draw on TAS's reference rate of 28.0c/kWh (TasNetworks network). Efficient models run $0.25, high-draw models $0.53.
How is this calculated?
Watts ÷ 1,000 × the tariff = cost per hour, then × hours × days for the period figures. Every figure on this page uses TAS's 2026–27 reference rate — change the assumptions in the calculator above.
Is the tariff here what I actually pay?
It's the OTTER-approved Aurora Energy Standing Offer 2026–27 (approved 25 June 2026) — Tariff 31 usage rate for the TasNetworks network — the government reference. Your market offer may be a little under it; your zone may differ. See TAS rates by zone.

Related

Sources — figures current as at 17 July 2026.

The compressor runs ~2–4 h/day, often timed to solar or off-peak.