The cheapest gas plans in Adelaide.
- First$1,016a yearHomeDeal Smart - GasAlinta Energy69.66c a day supply · 5.35c a MJGo to site
- Second$1,023a yearFreedom GasCovaU90.33c a day supply · 5.79c a MJGo to site
- Third$1,082a yearFULLHOUSEGloBird Energy85.80c a day supply · 5.50c a MJGo to site
Ranked by a year’s gas bill once any sign-up credit is used up — supply, usage, GST, guaranteed discounts and membership fees — cheapest first; one row per retailer, its cheapest plan here, and a tie to the retailer first A–Z. Leaves out plans sold only with the retailer’s electricity, plans for homes with solar, home-business plans, and plans sold only to members, partners’ customers or through comparison sites. Compares 9 retailers, not the whole market.
The other 6 plans
Ranked by a year’s gas bill once any sign-up credit is used up — supply, usage, GST, guaranteed discounts and membership fees — cheapest first; one row per retailer, its cheapest plan here, and a tie to the retailer first A–Z.
| # | Plan | Supply | Usage | First-year credit | Adelaide | Links |
|---|---|---|---|---|---|---|
| 4 |  | 77.00c a day | 5.94c a MJ | — | $1,110a year$93.21 more than first ranked | Go to site |
| 5 |  | 96.31c a day | 5.41c a MJ | — | $1,144a year$128 more than first ranked | Go to site |
| 6 |  | 95.54c a day | 6.32c a MJ | — | $1,238a year$221 more than first ranked | Go to site |
| 7 |  | 100.10c a day | 6.88c a MJ | — | $1,325a year$308 more than first ranked | Go to site |
| 8 |  | 81.58c a day | 9.59c a MJ | — | $1,327a year$311 more than first ranked | Go to site |
| 9 |  | 118.80c a day | 8.33c a MJ | $261 off | $1,451a year$434 more than first ranked | Go to site |
- 4Lumo BasicLumo Energy$1,110a year$93.21 more than first ranked77.00c a day supply · 5.94c a MJ
- 5Smart Saver (No Exit Fee)AGL$1,144a year$128 more than first ranked96.31c a day supply · 5.41c a MJ
- 6Origin Go Variable OngoingOrigin Energy$1,238a year$221 more than first ranked95.54c a day supply · 6.32c a MJ
- 7Living Energy SaverRed Energy$1,325a year$308 more than first ranked100.10c a day supply · 6.88c a MJ
- 8ENGIE - Perks Gas$1,327a year$311 more than first ranked81.58c a day supply · 9.59c a MJ
- 9Flexi PlanEnergyAustralia$1,451a year$434 more than first ranked118.80c a day supply · 8.33c a MJ · $1,190 in the first year
Priced at postcode 5000 on the gas network run by Australian Gas Networks (Adelaide, the Barossa and Peterborough), for two people at the AER’s benchmark for SA: 14,670 MJ a year. A home that uses more or less gas, or heats with it, can find a different order.
Rank them on your answers
Ranked here for a typical household at one postcode. The questions price a year’s gas bill at your postcode and on your use.
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As of 14 October 2026, the cheapest gas plan in Adelaide tracked by BankMate, for a two-person home using 14,670 MJ a year, is Alinta Energy HomeDeal Smart - Gas at $1,016 a year. How we rank →