Siemens Energy
ENR · Frankfurt (DAX)Went from a near-crisis wind turbine business in 2023 to one of the best-positioned grid-equipment makers of the AI buildout.
Who they are
Siemens Energy was spun off from Siemens AG's Gas and Power division on April 1, 2020, and began independent trading on the Frankfurt Stock Exchange that September, taking full ownership of wind turbine maker Siemens Gamesa with it. The early years were rocky — Gamesa's quality problems dragged on group results for several years — but the Grid Technologies segment, the part of the business making transformers and switchgear, has since become the company's standout performer as AI data center demand collided with an already-aging Western power grid.
What they do
Grid Technologies designs and manufactures the high-voltage transformers, switchgear, and grid automation equipment utilities and data center developers need to move power at scale. Siemens Energy has raised its margin guidance for this segment to 18–20%, an unusually high figure for industrial equipment manufacturing, reflecting just how much pricing power has shifted to suppliers in a market where demand has outrun capacity. The company has committed more than $1 billion to US grid infrastructure, including a new large power transformer plant in Charlotte, North Carolina targeting a 2027 production start.
How Siemens Energy makes money
Equipment orders and services across its three segments. Fiscal 2025 group revenue reached €39.1 billion, with net income of €1.685 billion, and CEO Christian Bruch has overseen a dramatic turnaround from the Gamesa-driven losses of a few years earlier. The Grid Technologies order backlog alone stood at roughly €16 billion at the end of fiscal 2025, and the company-wide order backlog has been reported at a record €136 billion, driven overwhelmingly by grid equipment and gas turbine demand tied to AI data centers and broader electrification.
The bigger trend
Siemens Energy's turnaround is a useful case study in how completely the AI buildout has reordered which industrial businesses matter: a company whose wind turbine unit was a genuine financial crisis risk in 2023 is now valued largely on the strength of its transformer backlog. Rivals including Mitsubishi are reportedly carrying grid-equipment order books stretching roughly five years, suggesting this isn't a Siemens Energy-specific story but an industry-wide repricing of grid hardware.
Whether Grid Technologies' 18–20% margin guidance holds as the segment scales, or whether raw material costs (particularly grain-oriented electrical steel) eat into that expansion. Also watch whether Siemens Gamesa's wind business, still a source of volatility in recent years, stays stable enough that it doesn't distract from the Grid Technologies growth story.
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Frequently asked questions
No. Siemens Energy was spun off from Siemens AG as an independent, separately traded company on April 1, 2020, taking the former Gas and Power division and full ownership of Siemens Gamesa with it. Siemens AG retains a minority stake of around 6%.
The Grid Technologies segment, which makes transformers and switchgear, held roughly 16 billion euros in order backlog at the end of fiscal 2025, while the company-wide backlog across all segments has been reported at a record 136 billion euros.
Quality and manufacturing problems at its wind turbine subsidiary, Siemens Gamesa, weighed heavily on group results for several years after the 2020 spin-off, before the Grid Technologies segment's AI-driven transformer demand became the company's dominant growth story.
This page describes public value-chain positioning for informational purposes only. It is not investment advice, and inclusion here is not a recommendation to buy or sell any security. Figures reflect public reporting as of mid-2026 and may have changed since.