Gas

What this dataset covers

Residential natural gas plans available across the three mainland states with substantial reticulated gas networks: New South Wales, Victoria, and South Australia. These are the states where retailers are required to publish gas plan data through the Consumer Data Right energy API.

Queensland has a limited reticulated gas network; Tasmania and the ACT have some gas distribution, but the retail market is narrow and retailer CDR coverage is incomplete. Western Australia's gas market is regulated separately and is not included. Business-only plans and small-business tariffs are excluded.

Sources

Plan data comes from the same CDR energy API ingest pipeline as electricity. Retailers accredited under the Consumer Data Right are required to expose both electricity and gas plan data; Bill Hero's ingest fetches gas plans from the same endpoints, filtering by fuel type.

The gas market is considerably narrower than electricity: there are fewer active CDR retailers publishing gas plans, and the geographic coverage is more limited. The dataset reflects what is published via the CDR, not what might be available through direct retailer sign-up channels that fall outside the standard CDR obligations.

Refresh cadence

Gas plans are refreshed in the same daily run as electricity: 6am AEST (20:00 UTC the prior day). Gas plan changes are less frequent than electricity — a retailer might update gas rates quarterly — but the daily cadence ensures any change is reflected promptly. Plan records include a last_verified timestamp indicating when the plan was last successfully fetched from the CDR endpoint.

How prices are computed

Annual cost estimates are computed at AER reference consumption levels for each network zone. The computation works through the plan's tariff schedule in order:

• Daily supply charge (dollars per day, GST inclusive)
• Usage tiers: first N MJ at rate A, balance at rate B (cents per MJ)
• Seasonal variations, where the retailer distinguishes winter and summer rates

Gas is metered in megajoules (MJ) rather than kilowatt-hours. The reference consumption figures vary by state and distribution zone, reflecting the different climate profiles driving winter heating demand across NSW, VIC, and SA.

Conditional discounts (pay-on-time, direct debit) are recorded in the dataset but excluded from the base cost estimate, consistent with the AER's own comparison methodology.

Known limitations

Gas market coverage is narrower than electricity. Some smaller retailers that compete on gas do not publish CDR-compliant gas plan data, or publish incomplete tariff schedules. Where a plan's tariff schedule cannot be parsed into the standard rate structure, the plan is excluded from cost estimates but retained in the dataset with a null cost field.

Network distribution zones within each state affect supply charges. A retailer may offer different rates for Jemena vs Evoenergy in NSW, or AusNet vs Multinet in VIC. The dataset captures distributor-level rate variations where retailers publish them; where they publish a single state-wide rate, we apply that rate across all zones.

Concession rates, life-support discounts, and hardship tariffs are not modelled. The dataset reflects standard residential tariffs only.

Verification & corrections

Errors in gas data can be reported to data@billhero.com.au. Omissions or corrections are typically applied within 48 hours of verification.

Licence & attribution

Published under Creative Commons CC-BY-4.0. Attribution required: "Data via Bill Hero (billhero.com.au)". Commercial republication is permitted with attribution; bulk redistribution is rate-limited at 10 req/s per IP.

Citation format

Bill Hero (2026). Australian Residential Gas Plans Dataset. https://billhero.com.au/data/gas. Accessed [date]. CC-BY-4.0.

@misc{billhero2026gas,
  author    = {{Bill Hero}},
  title     = {Australian Residential Gas Plans Dataset},
  year      = {2026},
  url       = {https://billhero.com.au/data/gas},
  note      = {Accessed [date]. CC-BY-4.0. NSW/VIC/SA only. Updated daily from CDR energy API.},
}

The canonical AI feed lives at /data/gas. The legacy /data/gas-plans/all endpoint remains available with the same source data.