The cheapest energy plans, honestly compared.
A no-spin Australian guide to the cheapest energy plans in 2026. The retailers consistently competing on price, what the Default Market Offer actually means for your bill, and how to find the cheapest plan for your specific home (not just the cheapest headline rate).
Most Australians can save $300 to $500 per year by switching from a Default Market Offer standing offer to a competitive market offer. In NSW the gap is $473/year (DMO $1,965 vs cheapest market offer $1,492). In SA it's $383/year. Eight retailers consistently compete on price in 2026: GloBird, Alinta, Energy Locals, Red Energy, Momentum, Tango, Powershop, and Lumo. But cheap isn't always cheapest: the right plan depends on your usage pattern (kWh/year, time of use, controlled load, distribution zone), not the headline rate. New DMO from 1 July 2026 brings price falls of 3.4-7.7% in NSW and 7.2-10.7% in SE QLD, so it's worth comparing again after that.
The Default Market Offer trap
Around 10% of Australian households are still on the Default Market Offer (DMO) without realising it. The DMO is the regulated maximum price retailers can charge customers on standing offer contracts; it's a safety net, not a competitive deal. If you've never actively chosen a market offer, you're likely on the DMO or close to it, paying $300 to $500 more per year than you need to.
In NSW, the DMO reference price sits at around $1,965 per year for a typical household in the Ausgrid network. The cheapest market offer for the same household sits at around $1,492 per year. That's a $473 annual gap, sitting between people who've shopped around and people who haven't. South Australia (the most expensive state for electricity) has a $383 gap. Victoria's equivalent Victorian Default Offer (VDO) creates a similar gap of $300 to $450 per year.
Check your bill right now
If your annual electricity cost is at or above your state's DMO reference price, you're on a standing offer and overpaying. If you've never actively switched plans in the past 12-24 months, the same is likely true: even if you signed up to a market offer originally, intro periods expire and you may have been rolled onto a less competitive ongoing rate.
The single biggest savings opportunity in Australian energy isn't switching between competitive market offers (where the gap is small). It's moving off a standing offer to any reasonable market offer. That's where the $300-$500 per year is.
Eight cheap energy retailers in Australia for 2026
These eight retailers consistently appear in the cheapest 5-10 plans in their state markets in 2026. Coverage varies by state; some are national, some are regional. None of them are the very biggest brands, because the very biggest brands rarely lead on price.
Cheap isn't always cheapest for your home
The cheapest headline rate isn't always the cheapest annual cost. Two households on the same street can save with different plans depending on their usage pattern. Three things determine your actual annual cost, not just the per-kWh rate: total usage in kWh, when you use that power (peak/off-peak/shoulder), and your distribution zone's network charges.
Same plan, two households, very different outcomes
Plan A has a usage rate of 23 c/kWh and a daily supply charge of $1.30/day. Plan B has a usage rate of 28 c/kWh and a daily supply charge of $0.95/day. Which is cheapest? It depends on the household.
5,500 kWh/year
Plan A's lower usage rate (23c) beats Plan B's higher rate (28c) when usage is high. Plan B would cost $1,887. Plan A saves $147/year for this family.
2,400 kWh/year
Plan B's lower supply charge ($0.95 vs $1.30) saves more than Plan A's lower usage rate at this volume. Plan A would cost $1,027. Plan B saves $128/year for this household.
The lesson: the comparison tables on most websites show "cheapest" based on a generic household profile (typically 3,900-4,500 kWh/year). If your household uses significantly more or less than that, the rankings change. Compare based on your actual annual kWh usage, which is on your bill or available from your retailer.
Cheapest energy plans by Australian state
Estimated annual costs for a typical household on a single-rate tariff in mid-2026. The "save" column shows the gap between the DMO/VDO reference price and the cheapest current market offer. Every state has retailers competing for your business; comparing what's available in your specific postcode is the only way to know your real savings opportunity.
Six rules for finding the cheapest energy plan
- Compare based on annual cost, not headline rates. The plan with the lowest cents per kWh isn't always cheapest annually. Calculate (usage rate x your annual kWh) + (supply charge x 365). Most retailers show estimated annual cost on their plan pages; use that, not the per-unit rate. Better yet, use Energy Made Easy (energymadeeasy.gov.au) which calculates total annual cost for your postcode automatically.
- Always check the ongoing rate, not just the intro. Many cheap plans offer 6-12 month intro discounts ($30/mo off, or 20% off usage rates) that revert to full ongoing rates. Set a calendar reminder for when your intro ends so you can review and switch again. Plans with no intro discount but lower ongoing rates often win over 24 months.
- Bundle gas and electricity for a small discount. Most retailers offering both gas and electricity give a small dual-fuel discount (typically $50-$120/year). Worth taking if available, but don't pick a worse electricity plan just to get the bundle. Run both as separate calculations: separate cheapest electricity + separate cheapest gas vs bundled. Pick whichever totals less.
- Watch for conditional discounts that you might miss. Some cheap plans require direct debit, online billing, or pay-on-time to claim the headline rate. Miss a payment and the rate jumps significantly. If you have variable cash flow, choose a plan with unconditional rates even if 1-2c/kWh higher; the savings disappear with one missed payment otherwise.
- Cheapest in your state isn't cheapest nationally. Energy prices vary significantly by state due to network charges, generation mix, and competition levels. A retailer offering 20c/kWh in VIC isn't necessarily cheap in NSW where their rates might be 28c/kWh. Always compare retailers within your state and postcode, not against national averages.
- Review again on 1 July each year when DMO refreshes. The Australian Energy Regulator updates the Default Market Offer every 1 July. Retailers refresh their market offers around the same time to compete against the new reference price. This is when the best new intro discounts and competitive rates appear. Set an annual diary reminder to compare every July, regardless of your current plan's end date.
Common questions about cheap energy plans
Who has the cheapest energy plans in Australia in 2026?
How much can I save by switching to a cheap energy plan?
What's the catch with cheap energy plans in Australia?
Is the cheapest plan always the best?
What is the Default Market Offer and why does it matter?
How do I find the cheapest energy plan for my home?
Can I get cheap energy with a bad credit history?
When is the best time to switch to a cheaper energy plan?
Find the cheapest energy plan for your home
Compare current Australian energy plans across all states and retailers with estimated annual costs based on your actual usage, not headline rates.
Compare energy plans