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Cost to run a electric storage hot water system in Tasmania (2026–27)

TAS reference tariff · 28.0c/kWh

$1.01 per hour at 3,600 W

Typical use (6 kWh a day) ≈ $612/year on the TasNetworks rate.

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

Electric hot water cost in TAS at 4 h/day, 365 days/year (28.0c/kWh)
Model bandPer hourPer dayPer monthPer year
Efficient (1,800 W)$0.50$2.01$61.19$735
Typical (3,600 W)$1.01$4.03$122.37$1,469
High (4,800 W)$1.34$5.37$163.16$1,959

The headline annual figure uses this appliance's measured energy per use (6 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

Electric hot water: 1,800–4,800 W typical range.

The element heats ~3–5 h/day, often overnight on controlled load; daily energy spans ~2 kWh (single person) to ~10 kWh (large family).

$1.01 per hour · $1,469/year at your settings
Per day (4 h)
$4.03
Per month
$122.37
Per year (365 days)
$1,469.25

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: Same Day Hot Water — hot water electricity use. Full electric hot water costs in TAS →

The same appliance in other states

Cutting the cost

If you have a standard electric tank, ask your retailer about a controlled-load (off-peak) tariff so it heats overnight at a cheaper rate. Insulate any exposed hot-water pipes, fix dripping hot taps promptly, and fit water-saving showerheads, since most of the cost is heating shower water. Set the thermostat to a safe, sensible level rather than scalding hot. Going away for a while? Switch it off at the tank.

Frequently asked questions

What does a electric hot water cost per hour in TAS?
$1.01 at the typical 3,600 W draw on TAS's reference rate of 28.0c/kWh (TasNetworks network). Efficient models run $0.50, high-draw models $1.34.
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 element heats ~3–5 h/day, often overnight on controlled load; daily energy spans ~2 kWh (single person) to ~10 kWh (large family).