National Electricity Market
Queensland, NSW/ACT, Victoria, South Australia and Tasmania. Interconnected regions, but prices and physical constraints differ.
Study NEM and jurisdictional architectureINDUSTRY INTRODUCTION
Australia’s energy landscape
The systems, institutions and businesses behind Australian energy.
Six chapters · Read in order or jump to a section below.
Evidence reviewed 17 October 2026. Dated snapshots, not a live price feed.
One country. Several energy systems.
“Australian energy” includes electricity, gas, coal, liquid fuels and emerging energy products. A national total is useful context, but a local project needs a much more specific boundary.
Wholesale Electricity Market
The WEM serves the South West Interconnected System. It is not connected to the NEM and does not cover every electricity system in WA.
Read the WA frameworkRegional & off-grid systems
Remote communities, mines, islands and parts of the Northern Territory operate with different physical systems and arrangements. Start with the actual network and operator.
Explore national and off-grid statisticsPHYSICALResource & generation↔Networks & storage↔Customers & flexible demand
COMMERCIALAsset owners & traders↔Markets & contracts↔Retailers & large buyers
ACCOUNTABILITYPolicy & legislation→Rules & obligations→Compliance & assurance
Energy produced is not energy consumed.
National snapshot · FY2024–25 · DCCEEW, Australian Energy Update 2026, Tables 2, 12, 13 and 16
Primary energy produced
≈18,900 PJ
Report Table 12: 18,871.4 PJ before conversion.Primary energy consumed
5,872 PJ
Report Table 2: primary energy, not final consumption.Electricity generated
282.5 TWh
Report Table 13: 282,478 GWh, including onsite and off-grid.Renewable electricity
37.6 %
Report Table 13: all Australian generation, not just the NEM.National snapshot checked against the September 2026 report on 18 October 2026. All four figures refer to FY2024–25; the report also contains separate calendar-year and on-grid series.
Australia exported about 15,067 PJ of energy in FY2024–25. This is the gross export total from report Table 16, not exports minus imports. Coal and LNG dominate exports. Electricity is only part of the energy economy; primary-energy totals also include fuels used in transport, industry and conversion. Do not add electricity output to the fuel used to generate it.
Capacity is a stock. Production is a flow.
- MW or GW
- Power capability at a point in time. Record whether it is nameplate, available, registered or committed.
- MWh, GWh or TWh
- Energy over a stated interval. 1 TWh = 1 million MWh.
- PJ
- Energy across fuels. 1 TWh = 3.6 PJ. Conversion of units does not remove differences in scope.
July 2026 workbook checked. Filter existing assets separately from proposed and committed projects. This register is not a total for all Australian grids and rooftop systems.
A plant rating is not an annual forecast.
Energy = capacity × hours × capacity factor
Teaching example: a 100 MW plant at an assumed 35% capacity factor produces 100 × 8,760 × 0.35 = 306,600 MWh in a 365-day year.
That calculation does not establish available output at the evening peak. Weather, outages, fuel, network constraints and storage state still matter.
Build confidence with energy and powerFind the decision-maker, not just the acronym.
Use this starting directory to identify the function. Then check the applicable law, jurisdiction and current instrument. It is not a complete approvals checklist.
AEMO
Runs the NEM and WEM market/system processes and publishes planning and reliability assessments.
When you would use this organisation
Dispatch, market data, ESOO, GSOO and ISP.
Boundary: Does not own the whole grid or set your retail tariff.
Official role / referenceAEMC
Makes and amends national energy rules and advises on market development.
When you would use this organisation
A National Electricity Rules change proposal.
Boundary: A rule change is not an instruction to a generator to dispatch.
Official role / referenceAER
Monitors wholesale markets, enforces national energy obligations and regulates covered network revenues.
When you would use this organisation
A network revenue determination or market compliance matter.
Boundary: Retail responsibilities vary by jurisdiction; it is not every state's safety regulator.
Official role / referenceGovernments & legislatures
Set policy and legislation; responsibilities are split between Commonwealth, states and territories.
When you would use this organisation
Emissions policy, planning approvals and state electricity legislation.
Boundary: A ministerial announcement is not necessarily an operative market rule.
Official role / referenceClean Energy Regulator
Administers NGER, the Safeguard Mechanism, ACCUs and renewable-energy schemes.
When you would use this organisation
Facility reporting, scheme eligibility and certificate compliance.
Boundary: A carbon unit is not an electricity trading licence.
Official role / referenceACCC
Conducts the gas inquiry and publishes LNG netback information alongside its competition and consumer role.
When you would use this organisation
Compare a gas offer with the netback benchmark and its limitations.
Boundary: The published netback series does not set domestic gas prices.
Official role / referenceARENA
Supports renewable energy, electrification and efficiency innovation through financial assistance and knowledge sharing.
When you would use this organisation
Read public project lessons before proposing a demonstration.
Boundary: Funding is not a connection approval or safety certification.
Official role / referenceCEFC
Invests to support Australia's transition to net zero, alongside other investors.
When you would use this organisation
Understand debt, equity and the investment mandate.
Boundary: An investment mandate is not an entitlement to a grant.
Official role / referenceEnergy Policy WA & ERA
Energy Policy WA develops policy; the Economic Regulation Authority performs independent economic regulation.
When you would use this organisation
Use the WA framework for a SWIS project, alongside AEMO's WEM responsibilities.
Boundary: Do not apply the NEM rulebook to WA by default.
Official role / referenceNOPSEMA
Regulates offshore safety, well integrity and environmental management within its statutory remit.
When you would use this organisation
Identify the offshore regulator before assessing project obligations.
Boundary: Onshore, electrical-safety and planning approvals involve other authorities.
Official role / referenceFor a project also check local planning, land access, environmental assessment, electrical safety and the relevant network's requirements. Source organisations are not Academy partners or endorsers.
Assets explain what a company does. Cash flows explain the business.
A representative directory, not a market-share ranking or an exhaustive register. Expand a company for its assets and business model, or visit its official website in a new tab.
AGLGeneration & retail
Assets / activities: Generation fleet and customer energy business.
Analyst lens: Wholesale generation, hedging and retail supply interact: a higher spot price is not automatically higher group profit.
How much production and customer demand is hedged?
Company evidenceOrigin EnergyGeneration, retail & gas
Assets / activities: Energy Markets and Integrated Gas businesses, including Australia Pacific LNG exposure.
Analyst lens: Electricity/customer margins and commodity-linked gas earnings can move in opposite directions.
Is a project volume reported on a 100% basis or at Origin's equity share?
Company evidenceSnowy HydroHydro & firming
Assets / activities: Snowy Hydro’s Snowy Scheme webpage reports approximately 4,100 MW and average annual generation of 4,500 GWh (accessed 18 October 2026). These are the webpage’s approximate figures, not a separate factsheet rating.
Analyst lens: Dispatch flexibility depends on water, plant capability and market conditions, not nameplate MW alone.
What water and operating constraints limit delivery during a dry period?
Company evidenceHydro TasmaniaHydro & firming
Assets / activities: 30 hydropower stations and 54 large dams, plus other generation assets.
Analyst lens: Storage and inflows link today's dispatch decision to future water value.
What happens to the plan if inflows fall and the interconnector is unavailable?
Company evidenceNeoen AustraliaRenewables & storage
Assets / activities: Wind, solar and batteries; Hornsdale Power Reserve is rated 150 MW / 193.5 MWh.
Analyst lens: Output, contracts and storage services have different revenue and risk profiles.
Which projects operate now, and which are still under construction?
Company evidenceTransgridNetworks
Assets / activities: High-voltage transmission in NSW and the ACT; lines, substations and interconnection assets.
Analyst lens: Separate regulated-network earnings from competitive activities and development expenditure.
Is the cited value an accounting asset, regulatory asset base or project cost?
Company evidenceWestern PowerNetworks
Assets / activities: Transmission and distribution network in south-west Western Australia.
Analyst lens: Network capacity is a location-specific transport constraint, not a commodity inventory.
Does the site connect to this network or another WA system?
Company evidenceAPA GroupGas infrastructure
Assets / activities: Gas pipelines and other energy infrastructure, including the East Coast Gas Grid.
Analyst lens: Contract terms, regulated allowances, utilisation and financing affect cash generation.
Are revenues capacity-based, volume-based or regulated?
Company evidenceWoodsideUpstream & LNG
Assets / activities: LNG and oil assets in an international portfolio; 2025 group production was 198.8 MMboe.
Analyst lens: Realised commodity prices, production, costs and capital investment drive returns.
Have you incorrectly labelled global production as Australian production?
Company evidenceSantosUpstream & gas
Assets / activities: Cooper Basin gas interests. The executed South Australian Government gas sale agreement is for 20 PJ a year over 10 years from 1 March 2030, delivered ex-Moomba.
Analyst lens: Reserves, development spending, contract obligations and delivery timing must reconcile.
Is contracted future supply being confused with gas already produced?
Company evidenceAmpolLiquid fuels
Assets / activities: Lytton refinery, fuel terminals, pipelines and retail distribution.
Analyst lens: Refining, supply logistics and retail margins differ from the crude-oil price.
Which segment is exposed to an import disruption or a weaker Australian dollar?
Company evidenceRead the earnings on the same basis
FY2026 consolidated results, year ended 30 June 2026. All figures below are A$ million. These are different business portfolios, not a profitability league table.
| Company | Underlying EBITDA | Statutory NPAT | Underlying NPAT | Evidence |
|---|---|---|---|---|
| AGL | 2,100 | 756 | 631 | Results |
| Origin Energy | 3,220 | 1,574 | 1,159 | Results |
| APA Group | 2,183 | 234 | Not included here | Results |
Build a defensible asset register
For each asset record: owner and equity share; operator; location and market; technology; operating status; MW; storage MWh; annual output; source date; and whether a value is gross, sent-out or equity-attributable. Add the regulatory asset base only where relevant. A coal reserve, a battery rating and a network valuation are not comparable measures of capacity.
Never fill an undisclosed profit cell with an estimate presented as fact. An asset's earnings may not be separately disclosed in the group's accounts.
Start with AEMO's NEM project registerThere is no single “Australian energy price”.
Q2 2026 · A$/MWh · regional averages reported in AEMO's QED summary, published 28 July 2026.
Victoria56
Queensland67
New South Wales75
South Australia86
Tasmania86
Reported NEM average: A$74/MWh. The separate WEM real-time average was A$118/MWh. Different systems and price measures: do not combine them into a national tariff.
What does A$74/MWh mean for a bill?
A$74/MWh = 7.4 cents/kWh
This is a unit conversion, not a retail offer. A bill can include network charges, the load shape, hedging, retail service, environmental obligations and tax.
AEMO's Q2 summary also reported east-coast wholesale gas at A$9.08/GJ. A gas supply offer at your site may have different timing, flexibility and transport terms.
Compare AER's charts and price definitionsA volume-weighted average can differ from a time-weighted average. Do not call the difference an error without checking the method.
How global markets reach an Australian customer
An export alternative
An LNG netback estimates an export-equivalent gas value after relevant liquefaction and shipping costs. Domestic contracts also depend on location, transport, duration and conditions.
ACCC netback series · updated 16 Oct 2026Trade & logistics
Crude and refined-product supply chains connect Australian transport to international shipping and prices. A refinery margin is a spread, not the absolute price of crude.
Examine a fuel supply chainCurrency & timing
For an imported US$100m item, a teaching exchange rate of US$0.65 per A$ gives A$153.8m; at US$0.60 it is A$166.7m, before hedges and other costs.
Illustrative sensitivity, not current FX data or a forecast.
Use forecasts to test decisions, not to promise the future.
Data centres & electrification
The 2026 ESOO Step Change scenario projects NEM data-centre consumption rising from about 5 TWh in 2025–26 to 34 TWh in 2035–36. The later figure is a forecast, not connected capacity today.
Read the demand and reliability outlookBuild rates & system capability
The 2026 ISP's least-cost pathway combines renewables, networks, storage and gas support through 2050. For a project, test delivery delays, constraints and the difference between energy and firm capacity.
Read the plan and assumptionsAnnual volume & winter peaks
The 2026 GSOO identifies an improved near-term outlook but a need for investment from 2030. Peak-day risk, transport and storage must be assessed separately from annual demand.
Read the gas outlookChoose the report that answers the question
How much energy did Australia produce and use?
DCCEEW · Australian Energy Update 2026Start with the national balance, then separate fuels, industries and electricity tables.
Publication year is not the observation year.
What happened to markets last quarter?
AEMO · Quarterly Energy Dynamics — Q2 2026 summaryCompare the same quarter, region and price definition. Use source charts for drivers.
A quarterly average is neither a forward quote nor a customer bill.
Where might electricity supply be insufficient?
AEMO · ESOO reports and supporting dataIdentify scenario, regional demand, availability assumptions and project inclusion criteria.
A modelled reliability gap is not a forecast that a blackout will occur.
Will gas be available when and where needed?
AEMO · GSOO reports and supporting dataSeparate annual volumes from peak-day deliverability, pipelines and storage.
A national annual surplus cannot prove a southern winter peak is covered.
What development path could meet future needs?
AEMO · 2026 Integrated System Plan and dataRead scenario assumptions, network timing, system security and alternatives together.
A least-cost system path is not an individual project's guaranteed return.
Who participates and how is the market performing?
AER · State of the energy market 2025Use the structural overview, then the more recent quarterly charts for prices.
The 2025 edition must not be relabelled as a 2026 dataset.
Source register, dates & update method
These sources join the Academy's resource catalogue for scheduled review. Weekly checking is an editorial workflow, not a real-time data service. A changed page triggers investigation; figures and answers require review before publication. Important changes can be flagged separately. This page does not fetch live figures when you open it.
Annual publications lag the period measured. A dated article remains historical evidence even when a newer report appears. Links can move or be restricted by the publisher. No organisation listed here has endorsed or accredited this module.
- DCCEEW — Australian Energy Update 2026Published / updated 2026-09-25. FY2024–25; separate calendar-year electricity tables. Australia, all energy.
- DCCEEW — Australian Energy Statistics — Update Report 2026Published / updated 2026-09-25. FY2024–25. Report Tables 2, 12, 13 and 16; FY2024–25 national totals.
- AEMO — Quarterly Energy Dynamics — Q2 2026 summaryPublished / updated 2026-07-28. April–June 2026. NEM, WEM and gas; separate measures.
- AEMO — 2026 Electricity Statement of OpportunitiesPublished / updated 2026-08-25. 2026 edition, p. 38; checked 18 October 2026. NEM; Step Change data-centre forecast.
- AEMO — ESOO reports and supporting dataPublished / updated 2026-08-25. 2026 edition checked; rolling publication page. NEM ten-year reliability outlook.
- AEMO — 2026 Gas Statement of OpportunitiesPublished / updated 2026-03-26. Long-term gas outlook. Eastern and south-eastern Australia; not WA.
- AEMO — GSOO reports and supporting dataPublished / updated 2026-03-26. 2026 edition checked; rolling publication page. Eastern and south-eastern gas markets; WA has a separate GSOO.
- AEMO — 2026 Integrated System Plan and dataPublished / updated 2026-06-25. Scenarios to 2050. NEM development pathways.
- AER — State of the energy market 2025Published / updated 2025-08-26. 2025 edition; much of the historical analysis covers 2024. Electricity, gas, networks and retail.
- AER — Wholesale charts and downloadable dataPublisher date not asserted. Rolling releases; Q2 2026 checked. Includes volume-weighted prices; check each chart.
- AEMO — NEM Generation InformationPublished / updated 2026-07-31. July 2026 workbook checked. Existing, committed and proposed NEM projects.
- ACCC — LNG netback price seriesPublished / updated 2026-10-16. Historical and forward series; different quote dates. Wallumbilla export-parity benchmark.
- AEMO — Market bodiesPublisher date not asserted. Institutional reference. Market governance; check jurisdiction.
- AEMC — Electricity: the energy systemPublisher date not asserted. Institutional reference. National electricity governance.
- Government of Western Australia — WA regulatory frameworkPublisher date not asserted. Current framework page. WA electricity and gas.
- Clean Energy Regulator — About the Clean Energy RegulatorPublisher date not asserted. Scheme responsibilities. Commonwealth carbon and energy schemes.
- ARENA — About ARENAPublisher date not asserted. Agency role. Innovation funding and knowledge sharing.
- CEFC — About the Clean Energy Finance CorporationPublisher date not asserted. Agency role. Clean-energy investment.
- NOPSEMA — About NOPSEMAPublisher date not asserted. Regulatory responsibilities. Offshore energy regulation.
- AGL — FY26 results announcementPublished / updated 2026-08-12. Year ended 30 June 2026. AGL consolidated group; A$.
- Origin Energy — FY2026 Annual Report and Appendix 4E — official SGX filing (PDF, 18.8 MB)Published / updated 2026-08-13. Year ended 30 June 2026; operating and financial review. Origin consolidated group; A$. Original results webpage returned 404; filing used instead..
- APA Group — FY26 resultsPublished / updated 2026-08-20. Year ended 30 June 2026. APA consolidated group; A$.
- Woodside — 2025 full-year resultsPublished / updated 2026-02-27. Calendar year 2025 — annual comparison, not latest trading update. Global group; US$, not Australia-only.
- Snowy Hydro — The Snowy SchemePublisher date not asserted. Undated Snowy Scheme webpage, accessed 18 October 2026. Existing Snowy Scheme; excludes Snowy 2.0 addition.
- Transgrid — What we doPublisher date not asserted. Asset reference checked 17 October 2026. NSW and ACT transmission.
- Western Power — What we doPublisher date not asserted. Asset reference checked 17 October 2026. South-west WA network.
- Hydro Tasmania — Our power stationsPublisher date not asserted. Asset reference checked 17 October 2026. Tasmanian generation portfolio.
- Neoen Australia — Australian assets and projectsPublisher date not asserted. Asset reference checked 17 October 2026. Solar, wind and storage; statuses differ.
- Ampol — Who we arePublisher date not asserted. Company reference checked 17 October 2026. Liquid-fuel supply and retail.
- Santos — Domestic gas sale agreement with South Australian GovernmentPublisher date not asserted. Executed agreement announced 29 June 2026; deliveries from 1 March 2030. Cooper Basin gas; future contract, not current output.
Now turn the landscape into a briefing.
Check the numbers, challenge a claim and write a recommendation with evidence.