Heirloom Carbon vs Siemens Energy
Side-by-side comparison of AI visibility scores, market position, and capabilities
$475M committed for two Louisiana DAC facilities (17K + 100K tonne/yr). First commercial-scale DAC going operational in 2026. DOE Project Cypress hub partner.
About
Heirloom Carbon is one of the only direct air capture (DAC) companies to cross from pilot scale to actual commercial operation in 2026, with its first facility in Shreveport, Louisiana going operational this year. The company has secured $475 million in committed investment for two Louisiana plants: a 17,000-tonne-per-year facility now operational and a 100,000-tonne-per-year facility under development — representing the largest DAC buildout in North America.
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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