Compare gas plans bya year of your gas bill, your winter heating, the supply charge, the usage rate or fixed prices.a year of your gas bill.your winter heating.the supply charge.the usage rate.fixed prices.

Not here. Western Australia’s and the Northern Territory’s gas markets aren’t part of the national market whose plans the Australian Energy Regulator publishes, and Tasmania files no residential gas plans. Plans are compared in New South Wales, the ACT, Victoria, Queensland and South Australia.

As a year’s bill for your household. Each gas plan is a daily supply charge plus a price for each megajoule (MJ), often cheaper after the first few MJ a day and dearer in winter. We use the MJ on your bill, or the AER’s benchmark for your household and whether you heat with gas, with winter use falling in winter. When your use is our estimate, each plan is also priced at a lighter and a heavier year, and those that stay cheap either way are marked.

Yes. Retailers file their usage and supply charges without GST, so we add it. Guaranteed discounts are taken off; a discount you get only for paying on time or by direct debit is shown on the plan but not counted, since it depends on you. A sign-up credit counts in the first year only.

No. Gas and electricity are separate plans, and no dual-fuel plans are filed. A few gas plans are sold only to homes that also take the retailer’s electricity; those show only if you say you’d move your electricity too, and the gas is priced on its own.

From the Australian Energy Regulator. Every retailer must file its generally available gas plans with the AER, which publishes them through the Consumer Data Right, the same data behind the government’s Energy Made Easy site. We read that feed every night. Prices depend on the gas network you’re on, so only the plans filed for your postcode are shown.

Some plans can only be taken through a comparison site or a partner, or only by members of a club, seniors card holders, a bank’s customers or existing customers, so they’re left out.