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Gas networks

Jemena Gas Networks: NSW Gas Leaks, Coverage and Prices

Jemena runs the largest gas network in Australia, supplying homes from Sydney to the Hunter and the Illawarra.

Checked against AER and network data, October 2026

Jemena emergency and contact numbers

Jemena Gas Networks

Gas leaks and emergencies

131 909jemena.com.au

Jemena in numbers

Jemena Gas Networks: key figures
NetworkCustomersHomesPipelineAsset base
Jemena Gas Networks (NSW)1,535,2901,500,65326,549 km$3.8 billion
AER, State of the energy market 2025, figure 5.3.

Gas prices on the Jemena network

Cheapest gas plans for a home in Parramatta (Sydney), postcode 2150
RetailerPlanYearly costFirst rateSupply
SumoSumo Winter Saver$8383.16c/MJ$0.67/day
Dodo Power & GasReal Deal$8594.76c/MJ$0.42/day
GloBird EnergyFULLHOUSE Residential(Jemena)-Jemena Gas$8853.74c/MJ$0.71/day
Alinta EnergyHomeDeal Smart - Gas$9304.62c/MJ$0.58/day
CovaUFreedom Residential Gas$9584.62c/MJ$0.70/day
AER Energy Made Easy plan data, 14 October 2026. Yearly cost for a three-person home using 19,978 MJ (the AER benchmark for NSW), seasonal and block rates applied, GST included. Guaranteed discounts in, conditional discounts out. One plan per retailer.

Jemena does not sell gas to households. Retailers buy access to its pipes and set their own prices. The table shows the cheapest plans for one postcode on the network; prices differ between tariff zones. Other areas priced: Bathurst. See gas prices in the state.

Connecting, disconnecting and abolishing

New connections and permanent removals are arranged through your retailer, which books the work with Jemena. Under AEMC rules made in December 2025 and 2026, new gas connections and customer-requested abolishments in the networks the rules cover will carry upfront, cost-reflective charges as each network's next access arrangement starts. See disconnecting from gas.

Common questions

131 909. Call 000 first if anyone is in danger.

No. Jemena Gas Networks runs the pipes. You buy gas from a retailer, which bills you and pays Jemena for network access.

Jemena, owned by State Grid Corporation of China (60%) and Singapore Power (40%).

Sources

Network figures and owners come from the AER. Contact numbers come from the network or the state safety regulator. Last checked October 2026. Prices include GST unless we say otherwise.