2026-27 rates are live. DMO, VDO and solar feed-in tariffs updated for July 2026. See what changed

Queensland electricity

Electricity in Mount Isa: What Households Pay in 2026-27

Mount Isa is not connected to the National Electricity Market. It runs on its own power system in north-west Queensland, but households pay the same QCA regulated prices as the rest of regional Queensland.

Checked against regulator and Clean Energy Regulator data, October 2026

Usage rate
28.89c
Ergon Energy, per kWh
Supply charge
$1.81
per day
Three-person home
$2,501
a year, regulated price
Solar zone
Zone 2
postcode 4825

Electricity prices in Mount Isa for 2026-27

Queensland regulated electricity prices for Mount Isa
Network areaUsage rateSupply chargeAt 4,000 kWh a year
Ergon Energy28.89c$1.81/day$1,815
2026-27 QCA notified price, including GST. Yearly cost at 4,000 kWh includes the supply charge.

Prices are set by network area, not by town, so every home on Ergon's network faces the same regulated price as Mount Isa. South East Queensland has a competitive market capped by the DMO. In regional Queensland, Ergon Retail sells at QCA-set prices subsidised by the state government.

Full state detail: Queensland electricity rates.

Who sells electricity in Mount Isa

In regional Queensland, Ergon Retail sells to almost all homes at the QCA's notified prices, which the state government subsidises so they stay close to South East Queensland's. Few other retailers offer plans on the Ergon network, so shopping around saves less here than in Brisbane. All electricity retailers.

Average electricity bill in Mount Isa

Typical yearly use and cost in Mount Isa
HouseholdkWh a yearkWh a dayPer quarterPer year
1 person3,75910.3$436$1,745
2 people5,93316.3$593$2,373
3 people6,37617.5$625$2,501
4 people9,01924.7$816$3,265
5 or more people9,71526.6$866$3,466
Use from the AER residential consumption benchmarks for climate zones 1 and 3 (QLD), December 2020. Cost priced on the 2026-27 QCA notified price for Ergon Energy, supply included.

In the AER benchmark for a three-person home here, summer is the highest-use season and winter the lowest. Homes with gas heating or hot water, or with solar, will use less from the grid than these figures.

  • The AER uses Mount Isa as an example of climate zone 3, hot dry summers and warm winters. Its benchmarks are pooled with zone 1.
  • Postcode 4825 is in CER solar zone 2, sunnier than Brisbane.

More on usage: average bills in Queensland and why a bill can be high.

Solar panels in Mount Isa

Rooftop solar and batteries in postcode 4825
Rooftop solar systems installed3,002
Total solar capacity25 MW
Average system size8.5 kW
Solar systems in the past 12 months183
Home batteries since July 2025117
Heat pump water heaters196
Clean Energy Regulator small-scale installation postcode data, to August 2026. Solar counts include systems installed since 2001; batteries are counted from July 2025, when the Cheaper Home Batteries Program began.

Postcode 4825 is in CER solar zone 2, rated at 1.536 MWh per kW a year. A 6.6 kW system here is deemed to make about 10,138 kWh a year, or 27.8 kWh a day, and earns 50 STCs if installed in 2026. See the solar calculator to estimate savings.

The regulated feed-in tariff is 6.006c per kWh: Regulated rate for regional Queensland (Ergon area), down 31%. In South East Queensland retailers set their own rate.

Rebates: solar rebates and battery rebates.

Power outages in Mount Isa

Ergon Energy Network

Power outages, 24/7

13 22 96ergon.com.au/network/outages

Your network, not your retailer, fixes outages. Check Ergon's outage map first, then report it if your home is not listed. More: power outages in Queensland and the Ergon network guide.

Rebates and bill help in Mount Isa

Mount Isa households can get Queensland concessions and rebates, as well as federal programs. The main ones:

Every program: Queensland energy rebates, or use the rebate finder.

Questions about electricity in Mount Isa

On the QCA notified price for Ergon Energy in 2026-27, power costs 28.89c per kWh plus $1.81 a day, including GST.

Using the AER consumption benchmark for climate zones 1 and 3 (QLD), a three-person household uses about 6,376 kWh a year. On the QCA notified price that is about $2,501 a year, or $625 a quarter.

Ergon Energy Network. It owns the poles and wires and handles outages. For faults call 13 22 96.

Postcode 4825 is in Clean Energy Regulator solar zone 2. A 6.6 kW system there is deemed to produce about 10,138 kWh a year, or 27.8 kWh a day on average.

Sources

Prices come from the regulator or the regulated retailer. Usage benchmarks, climate zones, solar zones and installation counts come from the AER, ABCB and Clean Energy Regulator. Last checked October 2026. Prices include GST unless we say otherwise.