Arbor Energy
Modular zero-operating-emission baseload turbines built with rocket-engine technology
The product
Arbor is developing HALCYON, a modular 25 MW oxy-combustion and supercritical-CO2 turbine system. Its current commercial configuration runs on natural gas, captures more than 98% of carbon dioxide, produces no operating NOx, SOx, or particulate emissions, and is designed for a future pathway to biomass-derived syngas.
The thesis
HALCYON is designed to provide data centers, utilities, and industrial users with firm power on roughly two-year deployment timelines while avoiding conventional turbine supply bottlenecks and capturing carbon by design. Its modular, additively manufactured architecture can scale from 100 MW sites to gigawatt-class portfolios, with a longer-term pathway to carbon-negative operation on biomass-derived syngas.
How it runs
A clean-power technology developer moving from a 1 MW pilot, ATLAS, to HALCYON, a modular 25 MW commercial power system. HALCYON units are designed for factory-style manufacture and pre-assembled deployment, with units stackable from 100 MW projects to gigawatt-scale plants for data centers, utilities, and industrial users.
How it earns
Commercialization is based on supplying and deploying HALCYON power capacity for large energy users, utilities, and industrial projects. Public agreements also show a carbon-removal credit revenue stream when biomass-derived fuel is used, including a multi-year Microsoft offtake; an agreement with GridMarket covers delivery of up to 5 GW of power beginning in 2029.
Why it wins
HALCYON combines oxy-combustion with a closed-loop supercritical-CO2 cycle and compact, additively manufactured turbomachinery. Arbor says the design provides continuous baseload power, greater than 98% carbon capture, no operating NOx/SOx/particulate emissions, a small footprint, and less exposure to conventional turbine supply-chain bottlenecks.
Evidence ledger
- website · 2026-04-27
Arbor Energy identifies as a reindustrialization company.
https://arbor.co - web · 2026-09-27
HALCYON is a 25 MW modular baseload system targeted for power by 2028. The current product runs on natural gas, is syngas-ready, captures more than 98% of carbon dioxide, and produces no operating NOx, SOx, or particulate emissions. Arbor positions HALCYON for projects from 100 MW to gigawatt scale and states a roughly two-year build time.
https://arbor.co/product/ - web · 2025-10-21
ATLAS is Arbor's 1 MW pilot and HALCYON is its commercial 25 MW system. The first HALCYON turbine is targeted to come online by 2028. Natural gas is the current commercial fuel while biomass syngas supports a longer-term carbon-negative pathway.
https://arbor.co/updates/company/arbor-energy-raises-55m-series-a-to-scale-clean-baseload-power/ - web · 2026-03-25
The GridMarket agreement covers up to 5 GW of zero-operating-emission power beginning in 2029. Arbor plans to ship more than 100 turbines annually by 2030.
https://arbor.co/updates/company/arbor-gridmarket-baseload-power-agreement/
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