ETW Energy Technology

What ETW Energy Technology does

ETW Energietechnik GmbH is a privately held German energy technology company headquartered in Moers, founded circa 1999, that designs, engineers, and manufactures turnkey energy plants as a general contractor / EPC provider. Its product portfolio covers three integrated technology lines: SmartCycle® biomethane plants based on Pressure Swing Adsorption (PSA) for upgrading biogas, landfill gas, sewage gas, and natural gas to grid-quality biomethane; Blockheizkraftwerke (CHP) gas engine systems for combined heat and power generation with reported efficiency up to 90% and CO2 reduction up to 60% versus separate generation; and SmartCool® LCO2 plants for liquefying the CO2 by-product of biogas upgrading into food-grade liquid CO2 with claimed 100% methane and CO2 recovery and 0.30 kWh/Nm³ energy consumption. The company operates 4,400 m² of manufacturing halls in Germany, holds 500+ realised projects, 500 MW total installed motor capacity, and 60,000 Nm³/h aggregate biogas treatment capacity, and maintains 6 service locations across Germany with 150,000+ spare parts in stock and remote monitoring as standard.

ETW serves four primary customer verticals: agricultural biogas operators (often in plant-bundling configurations), landfill operators (where high N2 content makes PSA the viable upgrading route), industrial energy consumers in food production, cement/lime, and stainless steel (using CHP for baseload power and process heat), and municipal wastewater treatment plants. Named reference customers include Stadtwerke Duisburg (Germany), a European cement and lime producer in Aisemont (Belgium), food production facilities in Ratingen and Kursk, a wastewater utility in Stammheim, a landfill operator in Taranto (Italy), and agricultural biogas facilities in Lethbridge (Canada) and Rhede (Germany).

The business model is project-based EPC delivery complemented by a recurring aftermarket service stream. Revenue is generated through one-time equipment sales of custom-engineered plants, ongoing maintenance and service contracts tied to the installed base, and spare parts supply. Sales is primarily direct enterprise field sales in Germany, extended internationally through a network of 7 regional sales partners covering Australia, France, UK, Italy, Kazakhstan/Uzbekistan, Spain, and Brazil. The company is managed by Carsten Weiss and Marco Weiss as Managing Directors, is privately held with no disclosed external investors, and has approximately 160 employees.

Name

ETW Energy Technology

Legal name

ETW Energietechnik GmbH

Website

https://etw-energie.de

Company type

Private

Founded year

1999

Operating status

Operating

Headcount range

51–100 employees

Short description

ETW Energietechnik GmbH is a German EPC manufacturer of biomethane, combined heat and power (CHP), and CO2 liquefaction plants, serving industrial, agricultural, municipal, and landfill operators across Europe, North America, South America, Australia, and Central Asia.

Ownership category

akta.pro rank

Product category

Industrial Biogas and CHP Energy Equipment

NAICS

Biomass Electric Power Generation (221117), Electric Power Generation (22111), Turbine and Turbine Generator Set Units Manufacturing (333611)

SIC

Cogeneration Services & Small Power Producers (4991), Engines & Turbines (3510)

akta.pro primary industry

Biogas/RNG Plant Development, EPC & Project Delivery (EUAAAEAH)

akta.pro secondary industries

Biofuel Plant EPC, O&M & Process Technology Providers (EUAAAHAK), Combined Cycle & Cogeneration (CHP) EPC (EUAEAAAB), Engine Generator & Microgrid Power Plant EPC (Diesel/Gas Recip) (EUAEAAAJ), Biofuels & Renewable Fuels Switching (Biomethane/RNG, Bio-oils, Sustainable Biomass) (EUABAJAD)

Keywords

• Biogas upgrading plants
• Biomethane production systems
• Combined heat and power
• CO2 liquefaction plants
• Industrial energy EPC

Headquarters

HQ city

Moers

HQ country

Germany

HQ region

Europe

Offices6 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. EPC / General contractor equipment sales: ETW acts as general contractor / EPC (Engineering, Procurement, Construction) provider delivering turnkey energy technology plants. Revenue is generated through one-time project-based sales of biomethane plants, CHP plants, and CO2 liquefaction systems. Each project is custom-engineered and includes design, manufacturing, installation, commissioning, and sometimes construction works. The company maintains 4,400 m2 of manufacturing halls in Germany.
2. Maintenance and service contracts: ETW provides ongoing maintenance, remote monitoring, incident management, and emergency service for its installed base of plants. The company operates its own service network across Germany with multiple service locations. Over 150,000 spare parts are kept in stock. Service contracts include regular maintenance, overhauls, spare parts supply, and emergency response. This represents a recurring revenue stream tied to the installed base of 500+ realised projects.
3. Spare parts supply: Supply of original spare parts for gas engines, compressors, turbochargers, pumps, and peripheral equipment. Spare parts include wear and tear parts, consumables, replacement engines, and complete peripheral components. Parts can be delivered by courier to customer sites. Revenue from parts supply is part of the broader service and maintenance business.

Go-to-market motion1 record

Distribution channels2 records

Marketing channels5 records

Core offering

ETW designs, engineers, manufactures, and delivers as general contractor (EPC) turnkey industrial energy plants that convert biogas, landfill gas, sewage gas, and natural gas into biomethane (for grid injection or fuel), electricity, heat, and food-grade liquid CO2. The portfolio spans biomethane upgrading plants using proprietary SmartCycle PSA technology, combined heat and power (CHP) plants, integrated SmartCool LCO2 CO2 liquefaction plants, and modular PowerTEC mobile power packs, supported by an in-house service and spare parts network across Germany.

Differentiator

Problem solved

Functional benefit

Brands

• SmartCool: LCO2 (liquid CO2) plant technology for CO2 liquefaction and recovery in biomethane production
• SmartCycle
• SmartCool LCO2

Products and services

• SmartCycle Biomethane Plants SmartCycle biomethane plants use ETW's proprietary pressure swing adsorption (PSA) technology to upgrade biogas, landfill gas, sewage gas, or natural gas into biomethane (over 99.5% CH4) suitable for injection into the natural gas grid or use as vehicle fuel. Designed to handle variable gas quantity and quality and supports plant bundling scenarios where multiple smaller biogas plants feed into one central upgrading facility. Delivered to industrial energy producers, agricultural biogas operators, landfill operators, and municipal wastewater utilities.
• Blockheizkraftwerke (Combined Heat and Power Plants) ETW's CHP plants combine gas engines (e.g., MWM TCG series, MTU 16V4000) with heat recovery to deliver up to 90% total efficiency and up to 60% CO2 reduction versus separate power and heat generation. They support grid parallel and island operation, achieve fast start-up under 3 minutes from 0-100%, and integrate exhaust heat into industrial processes at over 400°C. Designed for industrial energy consumers in manufacturing, food and beverage, cement and lime production, and municipal utilities.
• SmartCool LCO2 CO2 Liquefaction Plants SmartCool LCO2 plants liquefy the CO2 by-product from biogas upgrading into food-grade liquid CO2 per EIGA standard (up to 99.9% purity). The integrated system achieves 100% CO2 recovery and 100% methane recovery with the lowest reported energy consumption of 0.30 kWh/Nm3, and can be fully integrated with ETW's SmartCycle biomethane plants without unnecessary interfaces. Delivered to biomethane producers seeking food-grade liquid CO2 monetization.
• PowerTEC Power Packs PowerTEC is ETW's mobile or modular power pack offering within its portfolio of energy technology solutions, providing containerized or transportable power generation capability for industrial and decentralized energy applications.
• ETW Plant Service and Maintenance Contracts Recurring service offering for ETW's installed base of 500+ energy plants, covering regular maintenance, overhauls, customized engine maintenance schedules, remote monitoring of all key control parameters, incident management, 7-day emergency service, and supply of 150,000+ original spare parts (gas engines, compressors, turbochargers, pumps, peripheral equipment).

Quantifiable outcome

• Up to 90% total efficiency in CHP plants
• +6 more outcomes

Named customers8 records

Segments5 records

Ideal customer profiles5 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature6 records

Partnerships

Nine partnerships are on record, tiered regional and minor.

• EVO Energy (Australia)regionalChannel Partner/ Reseller/ DistributorEVO Energy serves as ETW's sales partner for Australia, operating from 18 Hasp Street, Seventeen Mile Rocks, QLD 4073, Australia. Contact: [email protected] / www.evoet.com.au. EVO Energy handles sales activities for ETW energy technology products in the Australian market.
• Rytec (France)regionalChannel Partner/ Reseller/ DistributorRytec serves as ETW's sales partner for France, operating from Pariser Ring 37, 76532 Baden-Baden, Germany. Contact: +49 (0)7221 377 60-0 / [email protected] / www.rytec.com. Rytec handles sales activities for ETW energy technology products in the French market.
• Cooper Östlund Ltd. (UK)regionalChannel Partner/ Reseller/ DistributorCooper Östlund Ltd. serves as ETW's sales partner for Great Britain, operating from Unit 1 Britannia Trade Centre, Ryehill Close, Northampton, NN5 7UA, United Kingdom. Contact: +44 1604 505992 / [email protected] / www.cooperostlund.com. Cooper Östlund handles sales activities for ETW energy technology products in the UK market.
• Tonissi Power (Italy)regionalChannel Partner/ Reseller/ DistributorTonissi Power serves as ETW's sales partner for Italy, operating from Porta Siberia – Calata Gadda, I-16128 Genova, Italy. Contact: +39 010 711583-6 / [email protected] / www.tonissipower.com. Tonissi Power handles sales activities for ETW energy technology products in the Italian market.
• Energotech Azia (Kazakhstan and Uzbekistan)regionalChannel Partner/ Reseller/ DistributorEnergotech Azia serves as ETW's sales partner for Kazakhstan and Uzbekistan, operating from Krylova Str. 68, office 56, 070004 Ust-Kamenogorsk, Kazakhstan. Contact: +77015018395 / [email protected] / www.energotech.kz. Energotech Azia handles sales activities for ETW energy technology products in Kazakhstan and Uzbekistan.
• ALTARE Energia S.A. (Spain)regionalChannel Partner/ Reseller/ DistributorALTARE Energia S.A. serves as ETW's sales partner for Spain, operating from C/ Ribera del Loira 46, 28042 Madrid, España. Contact: [email protected] / www.altare.es. ALTARE handles sales activities for ETW energy technology products in the Spanish market.
• GRUEN BIOGAS LTDA. (Brazil)regionalChannel Partner/ Reseller/ DistributorGRUEN BIOGAS LTDA. serves as ETW's sales partner for Brazil, operating from Rua Iguatemi, 448 cj. 801, Itaim Bibi, São Paulo – SP, CEP: 01451-011. Contact: [email protected] / www.gruen.com.br. GRUEN BIOGAS handles sales activities for ETW energy technology products in the Brazilian market.
• European Biogas Association (EBA)minorOthersETW is a member of the European Biogas Association (EBA), the pan-European body representing the biogas and biomethane sector. EBA membership indicates ETW's active engagement in the European biogas industry and its contribution to industry advocacy and standards development.
• German Biogas Association (Fachverband Biogas)minorOthersETW is a member of the German Biogas Association (Fachverband Biogas e.V.), the national industry body for the German biogas sector. Membership supports industry representation, knowledge sharing, and regulatory engagement at the national level.

Scale indicators7 records

Recent moves6 records

Expansion highlights5 records

Broad incumbents

• Wärtsilä Energy: Global energy systems manufacturer and operator of gas engine and gas turbine power plants. Competes in industrial CHP and gas-engine supply, but at significantly larger scale across multiple fuel sources.
• INNIO Jenbacher (Jenbacher gas engines): Major manufacturer of reciprocating gas engines for power generation and CHP, a supplier adjacent to ETW's CHP business and a competitor in the broader decentralised-power market with stronger balance sheet and global reach.
• MAN Energy Solutions (gas turbine / CHP): Provides large-scale gas turbines and CHP solutions that overlap with ETW's industrial CHP focus at the high-capacity end of the decentralised-power market.

Direct peers

• PlanET Biogas Group: German biomethane/biogas plant builder delivering containerised upgrading and CHP solutions for agricultural operators, directly overlapping with ETW's SmartCycle and CHP offering in the DACH region.
• Bright Biomethane (formerly HoSt): Dutch-headquartered EPC provider of biomethane upgrading systems and containerised gas-engine CHP units. Competes head-to-head with ETW in agricultural, industrial, and landfill-gas-to-biomethane projects across Europe.
• Hitachi Zosen Inova (HZI / Kompogas): A global EPC leader in anaerobic digestion and biogas upgrading, including Kompogas plants. Competes with ETW for municipal and industrial biomethane plant orders and has a larger international footprint.
• Envitec Biogas AG: Germany-based EPC provider of biogas and biomethane plants with a comparable product line (upgrading systems, CHP) and overlapping customer base across agricultural and waste/biogas operators in Germany and adjacent EU markets.
• Xergi (sub. of Nature Energy): Danish EPC contractor specialising in biogas and biomethane plants, active in the UK and broader EU. Direct competitor in the same upgrading technology category and customer segments.

Regional players

• Malmberg Water Sweden: Swedish EPC provider of biogas upgrading and water-treatment solutions. Comparable technology stack (PSA-based upgrading) but primarily serves Nordic and Northern European markets.

Others

• MTU / Rolls-Royce Power Systems: Supplier of the MTU 16V4000 gas engines that ETW integrates into CHP plants (e.g., Ratingen). Adjacent ecosystem participant, not a direct competitor, but a critical input supplier whose product roadmap affects ETW's downstream offering.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks7 records

Key highlights6 records

Customer concentration

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Revenue estimate

Valuation estimate

Number of profiles

Profiles4 records

Funding overview

Funding rounds

Investors

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M&A

Investments

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Frequently asked questions about ETW Energy Technology