How we worked this out
The Victorian Default Offer fell about 5% from 1 July 2026, to a state average of $1,591 a year. Victoria has the most competitive retail market in the country and the widest gap between the default price and the best offers. Inner Melbourne (CitiPower) sits at the low end of the rate range and outer zones (AusNet) at the high end.
Typical bills use average single-rate residential rates for 2026–27 (effective 1 July 2026), from the AER Default Market Offer and ESC Victorian Default Offer determinations, reviewed 20 July 2026. Cheapest plan figures come from live retailer plan data published under the Consumer Data Right, refreshed weekly. Your bill depends on your retailer, tariff type, meter and usage pattern. This is a guide, not a quote.
Cheapest, middle and highest plans we can see in Victoria
Each retailer's cheapest current electricity plan for a 4,000 kWh/year household, from official plan data refreshed weekly. These are statewide figures, not specific to Tarneit and Truganina, and the highest is shown for context, not as a recommendation. See every retailer for Victoria.
| Retailer | Usage rate | Daily supply charge | Est. annual cost* | |
|---|---|---|---|---|
| Cheapest | Origin Energy | 18.47c/kWh | 76.31c/day | $1,017 |
| Middle | Arcline by RACV | 21.95c/kWh | 102.42c/day | $1,252 |
| Highest | Powershop | 30.50c/kWh | 180.54c/day | $1,879 |
*Estimate only, for comparing retailers against each other at a standard usage level.
Yes, you can choose your electricity retailer in Tarneit and Truganina.
Victorian households at postcode 3029 can compare and switch retailers. Tarneit is on the Powercor network. Powercor describes Tarneit and the surrounding suburbs as having the highest penetration of solar connections in its network.
Tarneit and Truganina at a glance
This page covers Tarneit and Truganina in the Wyndham council area, plus a note on Hoppers Crossing, all inside postcode 3029. Together they have about 92,675 residents across 100 km² (about 928 people per km²), at 38 to 47 metres above sea level.
| Suburb | Residents | Area | Elevation |
|---|---|---|---|
| Tarneit | 56,370 | 38.2 km² | 47 m |
| Truganina | 36,305 | 61.7 km² | 38 m |
Population, area and elevation from the national towns dataset; council area from Wyndham Council.
Who supplies electricity in Tarneit and Truganina?
Tarneit is on the Powercor network. Powercor describes Tarneit and the surrounding suburbs as having the highest penetration of solar connections in its network. Poles and wires are owned by the distributor and are the same whichever retailer bills you, so switching retailer never changes the physical supply or who you call in an outage.
How much does electricity cost in Tarneit and Truganina?
The Victorian Default Offer for the Powercor zone is $1,633 a year at 4,000 kWh (calculated from the Essential Services Commission 2026-27 rates). CitiPower inner-city households have a reference price of about $1,481. Here is the gap an offer below the reference price can make.
| Reference price | $1,633 a year |
| An offer 5% under the reference | about $1,551 a year |
| An offer 15% under the reference | about $1,388 a year |
| Possible saving | about $82 to $245 a year |
Simple arithmetic on the reference price, for illustration. Your bill depends on your usage and plan.
Our take on Tarneit and Truganina
Tarneit is a newer estate suburb, and the NBN numbers show it: about 21,100 premises are on fibre to the premises, the fastest NBN technology. That means speed is rarely the problem here, so choose an internet plan on price and contract terms, not on chasing a faster tier. On power, the Powercor reference price sits well above inner Melbourne, so a percentage discount off a high reference price can still leave a bill above what a plain, lower-rate plan would cost. Compare the usage rate and daily supply charge, not the headline discount.
Is the internet good in Tarneit and Truganina? What the NBN looks like
Across Tarneit and Truganina, the NBN dataset classifies 41,434 premises. Which technology you are on matters more than which provider you pick, because the technology limits your speed tiers.
- Fibre to the premises (FTTP): 81.0%
- Fibre to the node (FTTN): 12.5%
- Fibre to the kerb (FTTC): 5.2%
- Other (wireless, satellite): 0.7%
- Fibre to the building (FTTB): 0.6%
- Hybrid fibre coaxial (HFC): <0.1%
| Suburb | Premises | FTTP | FTTC | FTTB | FTTN | HFC | Other |
|---|---|---|---|---|---|---|---|
| Tarneit | 26,492 | 80% | 0% | 0% | 20% | 0% | 1% |
| Truganina | 14,942 | 83% | 14% | 2% | 0% | 0% | 1% |
Source: NBN upgrade map dataset, suburb breakdown, snapshot 11 August 2026. Percentages are of classified premises; 6,704 premises with no technology recorded are excluded. “Other” is wireless and satellite.
Is solar worth it in Tarneit and Truganina?
Source: Bureau of Meteorology climate statistics, 1990 to 2026. Benchmark set of 14 stations from Hobart (13.3) to Alice Springs (21.7).
The Clean Energy Regulator records 28,370 small-scale solar installations in postcode 3029 since 2001, including 2,845 in the 12 months to September 2026. Source: Clean Energy Regulator small-scale installation postcode data.
From 1 July 2026 the Solar Sharer Offer gives smart meter households three hours of free electricity in the middle of the day, so a household that can shift laundry, dishwasher or pool pump use into that window benefits whether or not it has panels.
Moving to Tarneit and Truganina? Getting power and internet connected
Many Tarneit homes are new builds. If yours is, confirm with your builder that the meter and NBN connection are ready before your move-in date, because a newly built home can have an unconnected lot. Arrange electricity a week or two before moving in, and ask which NBN technology your address is on. Most Tarneit premises are on fibre to the premises, which usually connects without an installer needing to run new copper.
Tips for Tarneit and Truganina
- Compare the daily supply charge as well as the usage rate, since it applies every day regardless of use.
- Tarneit has high solar uptake, so check the feed-in tariff, not just the usage rate, if you have panels.
- Most homes are on fibre to the premises, so you usually do not need to pay extra for a faster speed tier to get good performance.
Where Tarneit and Truganina sits
Positions drawn from suburb centre coordinates. Dot size reflects population. Not suburb boundaries.
How we put this page together
Data sources: AER and Essential Services Commission reference prices (2026-27), the NBN upgrade map dataset (snapshot 11 August 2026), Bureau of Meteorology climate statistics, the Clean Energy Regulator postcode data, and the national towns dataset.
Limits: Reference prices are benchmarks for a typical household, not quotes. NBN figures are a snapshot and exclude premises with no recorded technology.
Disclosure: We may earn a commission if you switch through us. This does not change what we show. Last reviewed 31 October 2026.
