Gas Plans in O’sullivan Beach 5166
What’s the cheapest gas plan in O’sullivan Beach?
Cheapest plan, on average
The cheapest gas plan currently available in O’sullivan Beach 5166, assuming generic and average household usage and eligibility, is Residential Smart Saver (No Exit Fee) New To AGL at $872/yr from AGL, as of 4 November 2026. 43 residential plans are compared below.
This is a generic annual assessment only, and assumes:
That is the generic ‘best-priced’ plan answer. The actual best-priced plan for you may well be different.
But you’re not average, are you?
There are 67 gas plans available in O’sullivan Beach, South Australia, and only one of them is the best-priced for you.

Your bill is used to compare plans for you. We don’t sell your data. Privacy.
Review all gas plans in O’sullivan Beach
Compare 67 gas plans available in O’sullivan Beach, South Australia. Gas network: Australian Gas Networks.
By household size
Average gas bill in O’sullivan Beach by household size
In O’sullivan Beach 5166, estimated annual costs by household size are 1 to 2 people (15,000 MJ a year): $728/yr cheapest, $816/yr average; 3 people (20,000 MJ a year): $872/yr cheapest, $978/yr average; 4 or more people (30,000 MJ a year): $1,147/yr cheapest, $1,302/yr average.
Usage bands are indicative household sizes, not a measurement of any particular home. Costs are the plans’ own published annual estimates at each usage.
You’re not average, are you?
These prices are based on average consumption benchmarks.
Your actual consumption will be higher or lower than that, which influences what the best-priced plan for you is. The only way to find out for real is to do a proper bill analysis based on your actual consumption.
Upload your bill now for a quick and free one-time assessment, or subscribe, and Bill Hero will automatically analyse and compare every bill for you for a full year and help you switch whenever you can save.
All plans
Compare every gas plan in O’SULLIVAN BEACH
Annual cost at 20,000 MJ/yr with the default load curve. Cheapest first. Showing 8 of 43 plans.
FAQ
Frequently asked questions
What is the cheapest gas plan in O’sullivan Beach 5166?
Which gas distributor serves O’sullivan Beach 5166?
How do I switch gas retailers in O’sullivan Beach?
How many gas plans are available in O’sullivan Beach 5166?
How often are gas prices updated?
What is the average gas bill in O’sullivan Beach by household size?
Methodology and data
Plan rates and annual cost estimates are read from the Consumer Data Right (CDR) energy plan register, which every retailer is required to publish, and refreshed daily. This page lists 43 residential gas offers serving O’sullivan Beach 5166; last refreshed 4 November 2026.
No regulated reference price is published for gas on this network, so no percentage comparison is shown.
Bill Hero takes no commission, no referral fee and no placement payment from any retailer. Plans are ranked only by estimated annual cost, so the ordering on this page cannot be bought.
Source: Consumer Data Right (CDR) Energy Plan Data · Full methodology
