Siemens Energy’s Hydrogen Bet Adds a New Layer to Record Orders and Buyback Firepower

Siemens Energy diversifies into green hydrogen and deuterium via a FEED study with Aternium, as strong Q2 earnings and a raised buyback boost shares despite recent pullback.

Siemens Energy is widening its industrial footprint beyond grid equipment and gas turbines with a fresh move into the green hydrogen and specialty chemicals space. The German group has been commissioned by the start-up Aternium to conduct a front-end engineering and design (FEED) study for a planned facility in the US Mid-Atlantic region, targeting not only hydrogen but also the more niche prize of deuterium.

The project is modest in scale relative to Siemens Energy’s sprawling order book, but strategic in scope. The plant is designed to produce 60 megawatts of electrolysis capacity, generating up to 24 tonnes of green hydrogen and 190 tonnes of oxygen per day. Crucially, Aternium also plans to extract deuterium — a stable isotope of hydrogen that plays a role in future nuclear fusion and finds use in high-end industries from semiconductors to OLED displays. Siemens Energy is working with Kiewit Engineering on the study to finalise the plant design and establish safety and operational standards. A FEED study does not guarantee a construction contract, but a successful outcome could give Siemens Energy a tangible North American reference for the hydrogen-for-industry niche where margins often run higher than in bulk hydrogen.

The project sits against a backdrop of stellar operational momentum. Siemens Energy posted second-quarter earnings per share of €0.89, up from €0.50 a year earlier, on revenue of €10.29 billion. More striking was the order intake of €17.75 billion in the quarter, powered by the grid division’s multi-year investment cycle as utilities scramble to upgrade networks for renewable integration and rising electrification. Management responded by lifting the full-year net profit forecast to around €4 billion from a prior range of €3–4 billion, and now expects free cash flow before taxes of roughly €8 billion, double the earlier target. The order backlog has swelled to €154 billion, providing multi-year visibility.

That cash generation is feeding directly into a beefed-up shareholder return programme. Since launching share buybacks in March 2026, Siemens Energy has repurchased more than 12.43 million of its own shares, including 814,870 in the past week alone. The company raised its buyback target for the current fiscal year from €2 billion to €3 billion, and has a longer-term authorisation of up to €6 billion through fiscal 2028.

The share price reaction to the flurry of news has been mixed, reflecting the natural volatility after an extended rally. On Wednesday, the stock was quoted at €173.98, a gain of 3.39% in one report, while another data point showed €170.36, up 1.24% — underscoring intraday swings that have characterised recent sessions. Over the past week the shares have slipped 4.26% from their 52-week high of €188.00 set on 24 April. Even after the pullback, the year-to-date advance stands at roughly 40% and the 12-month gain exceeds 117%, prompting some profit-taking.

Technically, the correction has not broken the uptrend. The stock remains above its 50-day moving average of €164.09, and the distance to the 200-day average is still a healthy 30.48%. The relative strength index at 60.7 suggests no overheating, though an annualised 30-day volatility reading of 45% warns that sharp moves are likely to continue.

The next major catalyst comes on 5 August, when Siemens Energy reports third-quarter results. Until then, investors will weigh whether the grid-driven order momentum and the nascent hydrogen push can justify a market capitalisation of roughly €146 billion. The Aternium study may be a small piece of the puzzle, but it adds a new dimension to a story already dominated by cash flows, buybacks, and a record order pile.