Observed Signal · Mar 10, 2026 · Funding · Source: TechCrunch · Impact: 1/5 · Sentiment: Positive
Startup Hyperscale Power Disrupts 140-Year-Old Transformer Technology
TechCrunch reports that Hyperscale Power, a startup developing high-frequency solid-state transformers (SSTs) for data centers, raised a €5 million seed round led by World Fund and Vsquared Ventures to build a prototype. The article situates Hyperscale within a rapidly growing SST market that has seen roughly $280 million in recent startup funding and notes competitors such as Amperesand, DG Matrix and Heron Power (backed by Andreessen Horowitz). Hyperscale co-founders Daniel Rothmund and Sami Pettersson claim the company can reduce SST size further by operating at much higher switching frequencies (tens of kilohertz). Rothmund — who researched SSTs during a PhD at ETH Zürich and built a 99.1% efficient device — argues SSTs are becoming necessary as AI-driven server racks push power density toward hundreds of kilowatts and beyond.
Early-stage seed funding for a power-infrastructure startup; relevant to data-center and AI infrastructure but limited immediate impact on the AdTech/MarTech industry.
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Key Takeaways & Evidence Grounding
- Hyperscale Power raised a €5 million seed round to build a solid-state transformer prototype; the round was led by World Fund and Vsquared Ventures.
- Startups specializing in solid-state transformers have raised about $280 million in recent months.
- Competitors named include Amperesand, DG Matrix (which counts ABB as an investor) and Heron Power (founded by former Tesla executive Drew Baglino and backed by Andreessen Horowitz); collectively these competitors have raised over $330 million per PitchBook.
- Hyperscale’s approach emphasizes much higher operating frequencies (stepping power into the tens of kilohertz) to reduce transformer size; co-founder and CEO Daniel Rothmund previously helped design a 99.1% efficient SST during his PhD at ETH Zürich.
- Rising data-center power density (NVIDIA racks consuming >100 kW and roadmaps toward 1 MW racks) is cited as a driver for adopting solid-state transformers.
Connected Companies & Entities
3 Entities mappedRelated Market Signals & Shifts
Recent verified developments and strategic activity across this market segment.
Heron Power Secures $140M to Revolutionize Energy Transformers
Heron Power, founded by former Tesla executive Drew Baglino, raised $140 million in a Series B to scale production of its solid-state transformers for data centers and the power grid. The round was led by Andreessen Horowitz’s American Dynamism Fund and Breakthrough Energy Ventures, with participation from several other investors. Heron’s Heron Link units are modular solid-state transformers that can handle 5 megawatts each, convert medium voltage to 800 volts to match Nvidia reference rack designs, include fast-swap modules and short-duration lithium-ion batteries that provide about 30 seconds of power. The company plans a factory to produce 40 gigawatts of Heron Link annually, aims for pilot production in early 2027, and to ramp production over the subsequent two years.
DG Matrix Secures $60M to Revolutionize Data Center Power
DG Matrix, a startup building solid-state transformers for data centers, raised $60 million in a Series A led by Engine Ventures with participation from ABB, Cerberus Ventures, Chevron Technology Ventures, Clean Energy Ventures, Fine Structure Ventures, Helios Climate Ventures, MCJ, and Piedmont Capital. DG Matrix’s Interport device, described as a power “router,” can handle up to 2.4 megawatts and integrate power from multiple sources (for example combining solar and grid-scale batteries) to feed high-density server racks. The company says Interport can replace bulky legacy power conversion equipment and uninterruptible power supplies, improving efficiency (claimed 95–98% vs. legacy 82–90%) and reducing space requirements. DG Matrix has a deal to supply Interport to Exowatt, plans initial customer deployments in June 2026, and aims to expand into building power, EV fleet charging, and micro/mini-grid applications.
Hyperscalers' AI buildout to drive huge energy demand
CNBC Power Insider reports that record-scale capital spending by AI 'hyperscalers' is driving large incremental demand for power and energy infrastructure. BNP Paribas cites revised 2026 hyperscaler capex estimates of $725 billion (nearly double prior estimates), while UBS and Evercore publish multi-hundred-billion dollar scenarios for power and infrastructure spending (UBS: $511bn generation additions to 2030; Evercore: ~ $800bn). The piece highlights energy and infrastructure companies likely to benefit, naming Hut 8 and Fluence Energy as under-the-radar stocks that recently saw major deals and sharp share moves. UBS also points to Eaton and WEG, and to companies offering power-saving solutions (Johnson Controls, Trane Technologies). The article notes macro/commodity risks including JPMorgan analysis of oil inventories and an expectation the Strait of Hormuz could reopen in June.
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