SK eternix

SK Eternix began as a division of SK D&D in 2008 and was spun off into an independent entity in 2024.

Its business pillars are solar, onshore and offshore wind, fuel cells and energy storage systems (ESS), and alongside an offshore wind pipeline it is expanding a virtual power plant (VPP) platform business built on data analytics and risk management capabilities.

On operating assets, Seoul Economic Daily reported in August 2026 that the company runs 36 solar plants, 6 wind farms, 5 fuel-cell plants and 28 ESS facilities in Korea. eNewsToday reported in September 2026 that the company is expanding power trading on the back of a roughly 3GW pipeline spanning solar, wind, fuel cells and ESS, centered on the Solarnix model, which bundles scattered small and mid-sized solar plants into special purpose vehicles, optimizes the financing structure and supplies power long term to RE100 corporates.

According to the same report, solar and wind power purchase agreements total 395MW, combining 320MW at Solarnix and 75MW at the Gunwi Pungbaek wind farm, with contract terms of 25 to 30 years and minimum supply guarantees applied to some projects.

In fuel cells, after the 40MW Chungju Eco Park in 2025, the 40MW Daesowon Eco Park entered commercial operation in April 2026, creating an 80MW solid oxide fuel cell cluster in the Chungju area, with 31MW in Paju and 28MW won in the hydrogen power bidding market to follow.

In ESS, the company operates 794MWh across about 30 domestic sites, accumulating peak-shaving and demand-management capability, and data from Company Monitor as of June 2026 indicates a 100MW development in Texas is also under way.

Competitively it sits as a developer-type operator that handles development, structuring and operation together; segment revenue mix is not verifiable from confirmed filings, and the quarterly revenue mix shifts sharply with project delivery timing.

For 2025, consolidated revenue was KRW 385.6bn, operating profit KRW 53.0bn and owners' net profit KRW 30.7bn, all above 2024 levels (revenue KRW 332.2bn, operating profit KRW 37.6bn, net profit KRW 22.4bn), with the operating margin improving from 11.3% to 13.7%.

However, liabilities grew from KRW 489.7bn to KRW 1,044.0bn over the same period, lifting the debt-to-equity ratio from 202.4% to 382.4%, while operating cash flow swung from an inflow of KRW 66.8bn to an outflow of KRW 25.2bn.

That divergence between profit and cash is typical of a developer model in which capital is deployed upfront into project development and asset purchases. The quarterly pattern is highly uneven.

After bottoming in 3Q25 at revenue of KRW 46.4bn and operating profit of KRW 1.2bn, results surged in 4Q25 to revenue of KRW 248.0bn and operating profit of KRW 41.2bn, then shrank again in 1Q26 to KRW 27.5bn and KRW 4.9bn.

In 2Q26 revenue rose sharply again to KRW 240.9bn, but operating profit stayed at KRW 4.7bn, a margin of only around 2%, and the owners' result was a net loss of KRW 2.9bn.

Compared with 4Q25, when revenue was similar, the margin gap is stark, suggesting that the nature of delivery revenue, including the share of low-margin procurement and construction-type sales, drives quarterly margins.

Bottom-line volatility is also high: in 2Q25 owners' net profit of KRW 14.3bn exceeded operating profit of KRW 9.6bn, while 3Q25, 1Q26 and 2Q26 posted net losses despite positive operating profit, pointing to a large influence from non-operating items such as financing costs and equity-method or valuation entries.

Company Monitor summarized 1Q26 as revenue up 6.1% and operating profit up 362.2% year on year with net profit turning to a loss, citing stronger solar competitiveness and ESS operating technology as improvement drivers.

Summing the most recent four quarters (3Q25 through 2Q26) gives roughly KRW 562.8bn of revenue and about KRW 51.9bn of operating profit, an operating margin near 9.2%, yet owners' net profit of only about KRW 7.4bn, and that gap between operating and final results is the defining feature of current earnings.

Downstream demand is anchored in large-scale clean power needs from AI data centers and semiconductor clusters.

Seoul Economic Daily reported that power demand is surging on mega projects centered on AI data center expansion and a southwestern semiconductor cluster, and that SK Group plans to build and operate 5GW of AI data centers by 2029 and 15GW by 2035 through SK Hyper.

On the supply side, consolidation of group assets is reshaping the industry. According to Money Today, SK Innovation E&S had handled solar and PPAs, SK Ecoplant fuel cells, and SK Eternix solar, wind and ESS, and after integration the plan is to expand operating capacity from about 1.7GW to 10GW by 2031.

The policy backdrop has also been firming.

A Korea Economic Daily affiliate wrote in March 2026 that setback-distance rules for solar were abolished in February 2026, solar installation became mandatory at schools and parking lots above a certain size, and grid innovation measures plus a shift of the renewable portfolio standard toward a contract market were under discussion.

In offshore wind, policy finance has translated into an actual construction start: the Shinan Wooui project was designated the first investment of the National Growth Fund, with about KRW 1.3tn of its KRW 3.4tn total cost funded by the National Growth Fund and the Future Energy Fund.

In cycle terms the industry is moving from an expectation phase into a construction and delivery phase, where execution management and procurement margins, more than development capability, determine profit.

The competitive position differs from that of a pure generation utility: the company leads with a model linking development, structuring, operation and power sales, but with SK Innovation E&S assets covering 3.5GW of solar under operation and development also folded into the same platform, the division of roles between the listed entity and unlisted assets is being redefined.

The largest confirmed schedule item is offshore wind.

The Ministry of Climate, Energy and Environment held the Shinan Wooui groundbreaking ceremony on 16 July 2026; the project comprises 390MW (26 turbines of 15MW) southeast of Wooui Island in Docho-myeon, Shinan-gun, with total project cost of about KRW 3.4tn and a commercial operation target of January 2029.

The project SPC is owned 26% by Hanwha Ocean, 19% by Korea Midland Power, 10% by SK Eternix, 5% by Hyundai E&C and 40% by the Future Energy Fund, and engineering, procurement and construction is executed jointly by Hanwha Ocean and Hyundai E&C with combined contract value reported at about KRW 2.64tn.

The company's own pipeline schedule is also disclosed.

Per its sustainability report, phase 1 of the Incheon Gulup offshore wind project focuses on milestones such as permits and PPA signing, while phase 2 aims to complete generation licence review in 2026 to secure new project rights, and the Uljin Hupo project is under generation licence review.

In ESS, the company entered battery storage via the central contract market, plans to keep securing more than 100MW of new project rights a year, and targets commercial operation of Jeju Gasiri in December 2026.

In fuel cells, commercial operation at Chungju and Daesowon plus completion of Paju are expected to bring operating assets above 200MW.

On ownership, Invest Chosun reported in June 2026 that KKR signed a March agreement to acquire a 43.5% stake from SK Discovery and Hahn & Company for about KRW 348bn, that a holding company is expected to sit above SK Eternix and the renewable businesses of SK Innovation and SK Ecoplant, and that holding company SK is to participate as a shareholder with KKR agreeing to hold more than 50%.

Subsequently, Seoul Economic Daily reported in August 2026 that the Electricity Regulatory Commission had conditionally approved the disposal of the 43.09% stake held by SK Discovery and Hahn & Company to KKR's new entity Eclipse Holdco, that closing was set for 11 August, and that closing would accelerate the subsequent transfer of SK Innovation E&S and SK Ecoplant assets.

As a result, future earnings will hinge both on project delivery scheduling and on which revenues and fees the listed entity recognizes within the integrated platform.