Prometheus Fuels vs Siemens Energy
Side-by-side comparison of AI visibility scores, market position, and capabilities
Prometheus Fuels captures CO2 directly from the air and converts it into gasoline and jet fuel using an electrochemical process; raised $12M+ from Y Combinator and BMW i Ventures;
About
Prometheus Fuels is a clean energy company founded in 2019 by Rob McGinnis and headquartered in Santa Cruz, California. The company has developed a proprietary electrochemical process to capture carbon dioxide directly from the atmosphere and convert it into hydrocarbon fuels — including gasoline, diesel, and jet fuel — that are fully compatible with existing internal combustion engines and aviation infrastructure. Because the carbon in the fuel was drawn directly from the air, the combustion of Prometheus fuels releases no net new CO2, making them carbon-neutral or, depending on the energy source used in production, potentially carbon-negative.
Frankfurt-listed (ETR: ENR) energy technology company at €34.5B FY2024 revenue with 13-15% growth 2025; Siemens Gamesa offshore wind and gas turbines competing with GE Vernova and Vestas for energy transition infrastructure.
About
Siemens Energy AG is a Munich, Germany-based energy technology company — listed on the Frankfurt Stock Exchange (ETR: ENR), partially owned by Siemens AG (25%+ stake) following the September 2020 spin-off — providing power generation (gas turbines, steam turbines, generators), grid infrastructure (transmission technology, HVDC systems, transformers), and energy transition solutions (green hydrogen, offshore wind through its 73%-owned Siemens Gamesa Renewable Energy subsidiary) to utilities, industrial customers, and governments globally. Siemens Energy generated €34.5 billion in revenue in fiscal year 2024, with Q2 FY2025 revenue of €10.0 billion (+20.7% comparable) and Q3 FY2025 revenue of €9.7 billion (+13.5% comparable), projecting 13-15% revenue growth for full-year FY2025 at a 4-6% profit margin.
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