Finno Exergy

What Finno Exergy does

Finno Exergy Oy is a Finnish deep tech company founded in 2013 that has developed a patented Pressure Gain Combustion (PGC) technology for gas turbines. The core innovation uses pulsed deflagration combustion, in which inlet valve timing and a proprietary combustor geometry generate self-sustaining swirl and tumble flow, producing net pressure gain during combustion rather than the pressure loss inherent in conventional combustors. Two generations of test rigs have demonstrated pressure gains of 20-40%, simulations coordinated with a gas turbine OEM show a 15% efficiency uplift on a 10 MW industrial turbine (translating to over 2.5 million EUR in annual fuel savings per unit), and emissions of less than 20 ppm NOx normalized to 15% O2 have been measured. The system operates on natural gas, hydrogen-methane blends, or pure hydrogen with software-driven fuel switching, and is designed as a drop-in combustor replacement that retrofits into existing turbine architectures.

The company monetizes PGC through two planned streams: technology licensing to gas turbine OEMs for new turbine designs and retrofit professional services to industrial and utility-scale gas turbine operators. Go-to-market is enterprise field sales targeting OEMs and operators, with first OEM cooperation and a 10 MW retrofit cost estimation announced in 2024-2025, a Northwest European commercial anchor at Energy Transition Campus Amsterdam, and validation from Shell's GameChanger program following the 2020 New Energy Challenge Award. Primary customer segments are industrial gas turbine operators seeking efficiency and decarbonization without full turbine replacement, gas turbine OEMs seeking differentiation and hydrogen-ready product lines, and emerging distributed energy and hydrogen-integrated power generation applications.

Name

Finno Exergy

Legal name

Finno Exergy Oy

Website

https://finnoexergy.com

Company type

Private

Founded year

2013

Operating status

Operating

Headcount range

1–10 employees

Short description

Finno Exergy develops patented Pressure Gain Combustion technology for gas turbines, delivering 15% efficiency gains and full hydrogen fuel flexibility through a drop-in retrofit combustor sold to industrial turbine operators and OEMs.

Ownership category

akta.pro rank

Product category

Industrial Gas Turbine Combustion Technology

NAICS

Turbine and Turbine Generator Set Units Manufacturing (333611)

SIC

Engines & Turbines (3510)

akta.pro primary industry

Gas Turbines (Industrial & Utility-Scale) (IMAHAFAA)

akta.pro secondary industry

Open-Cycle Gas Turbine (OCGT) / Peaker Generation (EUACABAB)

Keywords

• Gas turbine combustion
• Pressure gain combustion
• Hydrogen-ready turbines
• Turbine efficiency technology
• Combustion retrofit services

Headquarters

HQ city

Helsinki

HQ country

Finland

HQ region

Europe

Offices2 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Technology Licensing: License PGC technology to gas turbine OEMs for integration into new OEM designs or retrofit applications. Revenue from licensing fees and royalties.
2. Retrofit Services: Provide PGC combustor retrofit solutions for existing gas turbine operators, including design, installation, and support services.

Go-to-market motion1 record

Distribution channels3 records

Marketing channels6 records

Core offering

Finno Exergy develops and licenses a patented Pressure Gain Combustion (PGC) technology for gas turbines, using pulsed deflagration combustion that achieves net pressure gain during the combustion cycle. The combustor is offered to gas turbine OEMs for integration into new designs and to industrial/utility operators as a retrofit replacement for conventional combustors. The technology enables 15% efficiency gains, fuel flexibility from natural gas to pure hydrogen, and emissions below 20 ppm NOx.

Product overview

Finno Exergy offers a single core technology product: the Pressure Gain Combustion (PGC) system. This patented technology is a drop-in combustor replacement for existing gas turbines that increases pressure during combustion rather than losing it, delivering substantial efficiency gains. The PGC system is available as a retrofit solution for existing turbines or as an integrated component for new OEM gas turbine designs. The technology supports multiple fuel types including natural gas, hydrogen blends, and pure hydrogen.

Differentiator

Problem solved

Functional benefit

Products and services

• Pressure Gain Combustion (PGC) Technology A patented combustion technology for gas turbines that achieves net pressure gain during combustion via pulsed deflagration with self-sustaining swirl and tumble flow. Designed as a drop-in combustor replacement for existing turbines or as an integrated component in new OEM designs, delivering 20-40% pressure gain, 15% efficiency improvements, fuel flexibility from natural gas to pure hydrogen, and less than 20 ppm NOx emissions. Targeted at gas turbine OEMs and industrial/utility-scale gas turbine operators.

Quantifiable outcome

• 15% efficiency increase in 10 MW industrial gas turbine engine
• +4 more outcomes

Segments3 records

Ideal customer profiles3 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 core and flagship.

• Energy Transition Campus Amsterdam (ETCA)coreStrategic or Co-development Partner · 4 June 2025Returned to ETCA in 2025 as strategic step for growth, collaboration, and customer engagement within leading energy innovation ecosystem. Previously part of campus community in 2022. ETCA provides lab and office space supporting customer engagement and future expansion opportunities in Northwest Europe.
• ShellflagshipStrategic or Co-development Partner · 1 January 2020Shell New Energy Challenge Award 2020 winner with technology validation through Shell GameChanger program. Four-year collaboration helped build technical and commercial foundation needed to engage with OEMs. Joint discussions with Shell and turbine OEMs led to new collaboration for retrofit feasibility study on 10 MW gas turbine.
• Purdue University (PETAL Lab)coreStrategic or Co-development PartnerCollaboration with Professor Guillermo Paniagua and Purdue Experimental Turbine Aerothermal Laboratory (PETAL) for joint simulations on turbine performance under pulsating flow conditions. Collaboration has led to turbine solutions achieving approximately 90% turbine efficiency under harsh and pulsating conditions.

Scale indicators7 records

Recent moves7 records

Expansion highlights5 records

Emerging players

• Reaction Engines: Advanced thermal and combustion technology developer (SABRE precooled engine architecture) targeting efficiency gains in thermal cycles. Comparable as a deep-tech advanced-combustion peer pursuing thermodynamic-cycle efficiency breakthroughs, although concentrated in aerospace.
• Calix: Australian-listed clean-technology company developing advanced thermal processing and combustion-related decarbonization solutions. Comparable as a public-listed advanced-combustion / decarbonization deep-tech peer, though operating in adjacent process industries rather than turbines.
• Caphenia: German startup developing advanced catalytic combustion and fuel-flexible gas-to-liquid power technology. Comparable as a deep-tech startup targeting efficient, fuel-flexible combustion in distributed power applications adjacent to gas turbines.

Broad incumbents

• GE Vernova: Major gas turbine OEM with broad utility-scale and industrial fleets (e.g., LM, Frame families). Comparable as both a potential licensing partner and a competitive incumbent with substantial in-house combustion R&D.
• Mitsubishi Power: Gas turbine OEM with industrial and utility-scale product lines, actively pursuing hydrogen fuel flexibility. Comparable as an OEM target for PGC integration and as a competitor developing low-NOx and hydrogen-capable combustors in-house.
• Siemens Energy: Global gas turbine OEM serving utility and industrial power generation. Highly relevant because Finno Exergy's primary go-to-market is licensing PGC combustion into Siemens-class OEM turbine platforms and retrofit fleets.

Direct peers

• Solar Turbines: Caterpillar-owned manufacturer of industrial gas turbines in the 1–22 MW range — the same size band as Finno Exergy's 10 MW target. Closest direct peer in industrial (rather than utility-scale) gas turbines, making it a natural retrofit and OEM-integration customer or competitor.
• Capstone Green Energy: Small-scale microturbine manufacturer focused on distributed and behind-the-meter power, including hydrogen-compatible product lines. Comparable as an alternative small-gas-turbine platform competing for distributed-generation efficiency and hydrogen flexibility.

Others

• Rolls-Royce Power Systems: Industrial gas turbines and power systems for decentralized generation, marine, and oil & gas markets. Comparable as an industrial-turbine OEM whose fleets are realistic retrofit candidates for PGC.
• Hoerbiger: Supplier of components and services for gas turbines, including actuators, sealing systems, and combustion-related subassemblies. Comparable as a component supplier positioned around gas turbine OEMs, providing context on the supply chain Finno Exergy is targeting.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat3 records

Key risks6 records

Key highlights7 records

Customer concentration

• Xx.com/finnoexergy
• LinkedInlinkedin.com/company/finno-exergy

Revenue estimate

Valuation estimate

Number of profiles

Profiles7 records

Funding overview

Funding rounds

Investors

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 Finno Exergy