Origin Energy Limited

The Business

Origin operates three distinct businesses under one roof. Its Energy Markets division retails electricity and gas to 4.8 million customer accounts, making it Australia's largest energy retailer by volume. It also owns and operates a fleet of gas-fired and renewable generation assets. The second pillar is a 27.5% stake in Australia Pacific LNG (APLNG), a coal seam gas-to-LNG export project that generates substantial cash distributions linked to global oil prices. The third is a 22.7% stake in Octopus Energy and its Kraken technology platform, a UK-based energy tech business valued at US$8.65 billion in its most recent private raise. Each business carries a fundamentally different risk profile, which is central to how the company should be analysed.

Recent Performance

Origin's share price has climbed roughly 40% over the past twelve months, driven by elevated oil prices (Brent at US$108) flowing through to APLNG distributions, an upgraded FY26 EBITDA guidance range of $1,550-1,750 million for Energy Markets, and momentum behind the $1.7 billion battery storage program. FY25 direct operations EBITDA came in at $1,624 million, up 6% from FY24's $1,537 million base. APLNG distributed $797 million to Origin during the year.

Outlook

Revenue should grow at roughly 3% annually through FY28, driven by tariff escalation and data centre demand growing at 7% per year. Energy Markets EBITDA is forecast to peak near $1,700 million in FY27 as battery assets ramp up, before stepping down to around $1,500 million in FY29 when the Eraring coal plant closes. That closure removes Origin's largest generation asset. EBITDA margins will compress from 9.4% to 8.6% over the forecast period as wholesale electricity prices decline on renewable oversupply. APLNG distributions should spike to $1 billion in FY27 on lagged oil price realisations, then normalise toward $700-800 million as Brent reverts toward mid-cycle levels.

Key Risks

Oil price reversion is the dominant risk: APLNG generates roughly 40% of Origin's total asset value, and distributions are directly tied to Brent through JCC-linked contracts with a 3-6 month lag. A meaningful decline in Brent would flow through to Origin's cash flows within two quarters. The $1.7 billion battery program has zero operating track record, and returns below the 8-11% target range would destroy significant net present value. The Octopus/Kraken stake faces UK regulatory risk and widening losses that could force impairment ahead of the mid-2026 separation.

What to Watch

The thesis-defining event is the FY26 results in August 2026, which will provide the first real operating data on battery revenue and confirm whether Energy Markets EBITDA lands within the upgraded $1,550-1,750 million guidance range.

• Mid-2026 Kraken/Octopus separation — the first public market test of the US$8.65 billion private valuation. The listing will either validate the carrying value or force a reassessment.
• Next 12 months Middle East conflict resolution — would reprice Brent toward US$65-75, cutting APLNG distributions by $200-300 million annually and materially altering the investment case.

Company Description

Origin Energy is an integrated energy company with three operating components. Energy Markets (EM) is the core, contributing $1,404 million in EBITDA in FY25, roughly 86% of direct operations. It combines a retail business selling electricity and gas to 4.8 million residential and commercial accounts with a generation fleet spanning gas-fired peaking plants (3GW), a 460MW battery program under commissioning, and the Eraring coal-fired power station (scheduled to close April 2029). The Integrated Gas and Other segment generated $327 million in FY25 EBITDA, primarily from LNG trading through Cameron LNG cargo contracts. Origin holds a 27.5% equity interest in APLNG, which ships approximately 9 million tonnes of LNG annually from Gladstone, Queensland. Separately, the 22.7% stake in Octopus Energy Group provides exposure to the Kraken technology platform and UK retail energy operations. Corporate costs ran at $107 million in FY25.

Where the Growth Is

The Energy Markets division is Origin's growth engine. EM EBITDA is forecast to ramp from $1,404 million in FY25 to $1,650-1,700 million by FY27, an increase of $200-300 million. Two forces drive this. First, the battery storage program, with 460MW already commissioning and more planned, captures a "firming premium" (the price generators earn for providing reliable backup power when renewables are unavailable). Second, data centre electricity demand is growing at 7% annually, adding structural load growth to a market where overall demand has been flat. The step-up is meaningful but temporary: Eraring's closure in FY29 will remove an estimated $200 million from EM EBITDA, resetting the base.

Competitive Position

Three companies control roughly 74% of Australia's retail energy market. Origin holds the largest share. Its competitive advantages are tangible and measurable. Customer churn runs at 14.7%, well below the industry average of around 22%. Cost-to-serve sits at $89 per account, the lowest among major retailers, driven partly by the ongoing migration to the Kraken technology platform, which automates billing, service, and customer management. These economics create meaningful switching costs: customers who leave typically return within 12-18 months, and Origin added a net 96,000 accounts in the first half of FY26. The retail franchise is underpinned by contracted gas supply from APLNG at $4.20 per gigajoule, below market rates that range from $8-14, providing a structural cost advantage in gas retailing. These advantages are durable but not permanent; they are likely to hold for 5-7 years before competitive responses and regulatory changes erode the edge.

Management & Capital Discipline

CEO Frank Calabria has run Origin since 2016 and carries a strong credibility record, achieving approximately 96% of stated guidance targets. Capital allocation has been disciplined through several tests: the board rejected Brookfield's $9.53 per share takeover bid in 2023, the $1.7 billion battery commitment uses phased milestones that allow course correction, and the Octopus impairment was proactively disclosed before the market forced acknowledgement. The payout ratio ran at 86% in FY25 and will compress to 55-60% during the battery investment cycle. One honest observation: management is transparent about near-term negatives (Octopus guidance halved, LNG trading normalisation flagged) but conspicuously silent on APLNG's reserve replacement ratio, which has declined to 44%. This suggests selective disclosure around medium-term production risk.

Financial Position

Origin's balance sheet is adequate for the capital investment cycle ahead. Net debt at the corporate level (excluding non-recourse APLNG project debt) sits at approximately $4.2 billion, representing leverage of 2.0 times EBITDA. The company holds a Baa2 investment-grade credit rating and $2.6 billion in undrawn facilities. Interest coverage is comfortable. The balance sheet can absorb a 43% decline in EBITDA before reaching credit stress thresholds. The primary concern is that lease liabilities will rise toward $1 billion as battery assets are commissioned, though this is manageable within the existing capital structure. Origin can weather a downturn, but it lacks the balance sheet optionality of a lightly geared peer.