Prometheus

What Prometheus does

Prometheus Fuels is a venture-backed deep-technology company that produces carbon-neutral liquid fuels from atmospheric CO2 and renewable electricity using a 100% electrochemical pathway. Its core platform combines a proprietary no-desorb direct air capture (DAC) process, which captures CO2 from air into water as carbonate ions without an energy-intensive desorption step, with the Faraday Reactor, the world's first hydrocarbon electrolyzer that converts those carbonate ions directly into long-chain hydrocarbon fuels at room temperature and atmospheric pressure. The Maxwell Core carbon nanotube membrane handles fuel-water separation, eliminating distillation. The integrated platform is validated to TRL 9 via the Titan Forge Alpha pilot plant in Santa Cruz, which has operated continuously on off-grid solar for one year producing 99.99% pure methanol.

The product slate spans e-methanol, e-kerosene (synthetic paraffinic kerosene, C8-C19), e-diesel, and ethanol from a single technology platform, with the addition of ULDES (Ultra Long Duration Energy Storage) systems that store surplus renewables as liquid fuels for 1,500+ hours at under $5/kWh capital cost. Two commercial-scale e-methanol projects are pre-sold: Project Lodestone at 100,000 tons/year and Project Lodestar at 1 million tons/year, with combined 10-year offtake value exceeding $8 billion at 2025 commodity prices.

Prometheus generates revenue through long-term offtake agreements and capital or operating leases to enterprise customers in four segments: data centers (ULDES for 24/7 renewable power and seasonal storage), aviation (synthetic paraffinic kerosene for sustainable aviation fuel), defense (containerized fuel production systems deployable with portable SMRs), and industrial/chemical buyers (methanol and e-fuels as chemical feedstocks). The go-to-market is enterprise field sales targeting named anchor customers such as American Airlines (10 million gallons of jet fuel) and the un-disclosed Lodestone and Lodestar counterparties. Patents cover 10 patent families across major jurisdictions, with the foundational CO2-DAC-to-carbonate-to-fuels patent granted in 2020 as first-to-file in the field. Independent techno-economic and lifecycle validation has been performed by Ramboll, DeepSense, and AmSpec Houston.

Name

Prometheus

Legal name

Prometheus Fuels

Website

https://prometheusfuels.ai

Company type

Private

Founded year

2019

Operating status

Operating

Headcount range

11–50 employees

Short description

Prometheus Fuels converts atmospheric CO2 and renewable electricity into carbon-neutral liquid fuels—methanol, jet fuel, and diesel—via proprietary direct air capture and electrochemical synthesis. It serves aviation, data center, defense, and industrial customers through long-term offtake agreements.

Ownership category

akta.pro rank

Product category

Synthetic Carbon-Neutral Fuels

NAICS

Petrochemical Manufacturing (32511), Petroleum and Coal Products Manufacturing (3241), Petroleum Refineries (324110)

SIC

Miscellaneous Products Of Petroleum & Coal (2990), Industrial Organic Chemicals (2860)

akta.pro primary industry

E‑Fuels & Synthetic Hydrocarbons (e‑kerosene, e‑diesel, e‑gasoline, e‑methane) (EUABAIAA)

akta.pro secondary industries

CO₂‑Derived Synthetic Fuels for Aviation & Marine (SAF e‑fuels, e‑ammonia/e‑methanol bunkering pathways) (EUABAIAH), Electrochemical CO₂ Conversion Systems (electrolyzers, catalysts, reactors, balance‑of‑plant) (EUABAIAK), E-fuels Storage & Blending (E-diesel, E-kerosene/SAF, E-gasoline) (EUAFAFAC)

Keywords

• Direct air capture fuels
• Synthetic liquid fuels
• Carbon-neutral e-fuels
• Electrochemical fuel synthesis
• Long duration energy storage

Headquarters

HQ city

Santa Cruz

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Technology or R&D, Personnel, Infrastructure, Operations, Supply Chain, Marketing or Sales

Revenue model

1. E-Methanol Sales: Production and sale of e-methanol fuel from direct air capture and electrochemical synthesis. Project Lodestone (100,000 tons/year, ~33.6 million gallons) pre-sold for 10 years at over $800M. Project Lodestar (1 million tons/year, ~336 million gallons) offtake agreements signed. Combined pre-sale value exceeds $8B at 2025 commodity prices.
2. Jet Fuel Sales: Synthetic paraffinic kerosene (jet fuel) production and sales targeting aviation industry. American Airlines agreed to purchase 10 million gallons of jet fuel. First 100% electrochemical pathway for jet fuel production at costs below petroleum-derived fuel.
3. Diesel and Gasoline Sales: Carbon-neutral diesel and gasoline produced through the electrochemical pathway. Fuels compatible with existing ICE vehicles and infrastructure. First vehicle demonstration on Prometheus fuel January 2025 (Honda Grom) and April 2025 (1968 Mustang Fastback).
4. ULDES Systems (Energy Storage): Ultra Long Duration Energy Storage systems sold or leased to data centers and grid operators. Systems store electricity as liquid fuels for seasonal storage. Pacific Northwest data center project specified at 300 MW / 450 GWh for $984M total project cost.
5. Defense Fuel Systems: Containerized fuel production systems for defense applications. Using power from portable SMR (Small Modular Reactor), can create diesel and jet fuel in transportable containerized systems deployable by cargo aircraft for sovereign fuel production in remote or temporary locations.
6. Technology Licensing: IP licensing opportunities for the proprietary DAC-to-hydrocarbon fuel technology. 10 patent families in major jurisdictions with foundational patents for CO2 DAC to carbonate/bicarbonate to fuels. Prometheus was first-to-file on this technology.

Pricing tiers

Go-to-market motion1 record

Distribution channels3 records

Marketing channels5 records

Core offering

Prometheus Fuels converts atmospheric CO2 captured via proprietary no-desorb direct air capture into finished liquid hydrocarbon fuels (e-methanol, e-kerosene, e-diesel, e-gasoline) using the Faraday Reactor hydrocarbon electrolyzer, and sells these fuels plus ULDES energy storage systems to enterprise customers in aviation, data centers, defense, and industrial sectors under multi-year offtake agreements.

Product overview

Prometheus Fuels offers a unified technology platform centered on direct air capture (DAC) and electrochemical hydrocarbon synthesis to produce carbon-neutral liquid fuels. The core system comprises proprietary no-desorb DAC technology, the Faraday Reactor (world's first hydrocarbon electrolyzer), and Maxwell Core carbon nanotube membranes. Key products include Titan Forge Alpha (pilot production system), ULDES (Ultra Long Duration Energy Storage systems), and commercial fuels (e-methanol, e-kerosene, e-diesel). Two commercial-scale projects are planned: Project Lodestone (100,000 tons/year methanol) and Project Lodestar (1 million tons/year methanol).

Differentiator

Problem solved

Functional benefit

Brands

• ULDES (Ultra Long Duration Energy Storage): Seasonal energy storage systems that store renewable energy as liquid fuels for 1500+ hours, enabling firm dispatchable 24/7 power for data centers and grids
• Titan Forge Alpha
• Faraday Reactor
• Project Lodestone
• Project Lodestar

Products and services

• e-Methanol
• e-Kerosene (Jet Fuel)
• e-Diesel
• Ultra Long Duration Energy Storage (ULDES) System
• Containerized Defense Fuel Production Systems
• IP Licensing of DAC-to-Hydrocarbon Technology

Quantifiable outcome

• Direct air capture cost of <$50/ton CO2 (validated by Ramboll at <$40/ton)
• +5 more outcomes

Named customers2 records

Segments5 records

Ideal customer profiles5 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature6 records

Partnerships

Three partnerships are on record, tiered key.

• DeepSensekeyStrategic or Co-development Partner · 1 December 2025Independent engineering firm commissioned by Maersk to observe Titan Forge Alpha pilot system operation and verify one-year performance data. Also observed and confirmed production of kerosene using Prometheus' electrochemical pathway.
• AmSpec Houston Technical CenterkeyStrategic or Co-development Partner · 1 October 2025External laboratory that confirmed Prometheus methanol purity at 99.99% meeting IMPCA international standards. Also performed carbon isotope analysis confirming unique signature for fuels made from atmospheric CO2 captured by Prometheus DAC technology.
• RambollkeyStrategic or Co-development Partner · 1 October 2024Independent engineering firm engaged for techno-economic analysis (TEA) and life-cycle assessment (LCA) on Prometheus' technology platform. Drew methanol samples sent to external lab confirming 99.99% purity. Observed and confirmed kerosene production from Prometheus' 100% electrochemical pathway. Validated DAC cost at less than $40/ton.

Scale indicators10 records

Recent moves6 records

Expansion highlights6 records

Direct peers

• HIF Global: Chile-based e-fuels company (Haru Oni pilot) using green hydrogen plus captured CO2 to produce e-methanol, e-gasoline, and e-SAF. Targets the same aviation and maritime fuel customers and competes head-to-head for e-methanol offtake.
• Climeworks: Swiss commercial-stage direct air capture company. Closest direct peer in DAC technology stack, although Climeworks historically focuses on CO2 removal/credits rather than downstream fuel synthesis. Represents the most advanced competing DAC platform.
• 1PointFive (Occidental): Occidental's DAC subsidiary operating Carbon Engineering's liquid-solvent DAC technology at scale (Stratos plant in Texas). Direct competitor in DAC with the backing of a major oil major and significantly larger capital base.
• LanzaTech: Carbon capture and conversion company using gas-fermentation (acetogen) biology to convert CO/CO2 into ethanol and sustainable aviation fuel. Targets the same aviation and fuel customers (including a deal with American Airlines partner Indigo) but via a biological rather than electrochemical route.
• Infinium: Sacramento-based e-fuels producer (e-methanol, e-SAF, e-diesel) using green hydrogen plus captured CO2. Direct competitor for the same aviation/marine/industrial customer segments that Prometheus targets with its e-methanol and e-kerosene products.
• Twelve (formerly Opus 12): Bay Area-based CO2 electrolysis company converting captured CO2 into chemicals and fuels. Closest technology peer — also uses electrochemical CO2 conversion but focuses on smaller-molecule outputs (CO, formic acid, ethylene) rather than long-chain hydrocarbons.

Emerging players

• Heirloom Carbon: Bay Area DAC startup using limestone-based direct air capture with significant 2024–2025 funding. Direct competitor in low-cost DAC technology with a focus on carbon removal credits rather than downstream fuel synthesis.
• Caphenia: German early-stage e-fuels startup using a thermochemical reverse-water-gas-shift route to produce e-fuels from CO2 and green hydrogen. Competes in the same European aviation/marine e-kerosene and e-methanol market.
• Charm Industrial: Bay Area DAC company that converts captured CO2 into biochar for permanent carbon removal rather than fuels. Uses adjacent DAC+conversion technology stack but monetizes via carbon credits rather than fuel sales; potential partner or acquirer.

Broad incumbents

• Aemetis: Public renewable-fuels company producing biodiesel, renewable diesel, and SAF from agricultural/forestry waste. Competes in the same sustainable aviation fuel and renewable diesel end-markets but via a bio-route at commercial scale.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks7 records

Key highlights7 records

Customer concentration

• Xx.com/prometheusfuels
• YouTubeyoutube.com/@PrometheusFuels
• LinkedInlinkedin.com/company/prometheusfuels
• Facebookfacebook.com/prometheusfuels

Compliance3 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

Funding overview

Funding rounds4 records

Investors7 records

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Prometheus