S&L Energy Projects

What S&L Energy Projects does

S&L Energie-Projekte GmbH is a privately held industrial equipment distributor and engineering services firm headquartered in Spelle, Germany, founded in 1998 as part of the STORM group (August Storm GmbH & Co. KG). The company is the authorized distributor and service provider for INNIO Waukesha gas engines across Germany, Austria, Switzerland, Netherlands, Belgium, and Italy (service/spare parts), and self-identifies as the largest European Waukesha partner and one of the leading worldwide. Operations are organized into three segments: Engines (sales and distribution of Waukesha Lambda-1 gas engines), Service (maintenance, repair, and spare parts delivered through Waukesha-certified engineers and the largest European Waukesha spare parts warehouse), and Solutions (complete CHP plant engineering, repowering, and modernization, including engine-make-independent balance-of-plant and control systems). The company maintains Waukesha Certified Engine Rebuilding and Component Remanufacturing Facility status for engines up to approximately 5 MW and is ISO 9001 (since 1998) and SCC** (since 2006) certified, with VDE-AR-N 4110 grid-code-certified Lambda-1 CHP modules.

The core technology platform is the Waukesha Lambda-1 (rich burn) gas engine, which achieves >95% overall CHP efficiency with NOx emissions below 50 mg/Nm³ using 3-way catalysts rather than SCR exhaust cleaning systems. Complementary capabilities include proprietary 3D laser scanning and drone-based digital twin technology for modernization planning (introduced 2022), and a certified workshop for engine reconditioning. S&L draws on the STORM group's 80+ years of engine repair experience and integrates with partners August Storm (reconditioning), Wulf Johannsen (Northern German repair), Hansewerk Natur (utilities consultancy), and GE Jenbacher (INNIO sister brand) to deliver integrated projects.

Revenue is generated through three mechanics: one-time engine sales and distribution (capital equipment), recurring service contracts and spare parts (annuity revenue tied to a 25-30 year installed base), and project-based CHP engineering services. Customers are predominantly European municipal utilities (Stadtwerke), district heating operators, and large industrial energy users, with named enterprise accounts including E.ON Hanse Wärme (30+ modernization projects since 2005), Hamburg Airport, Airbus Stade, TU Dortmund, ERGO Versicherung, Stadtwerke Lutherstadt Wittenberg, Wintershall DEA, Italfluid Group, and GDF Suez/ENGIE. Geographic focus is Western Europe with selective service projects in Egypt and Malaysia. The company is led by Managing Director Raimund Dieckmann and operates through wholly owned affiliates in the Netherlands and Italy.

Name

S&L Energy Projects

Legal name

S&L Energie-Projekte GmbH

Website

https://sl-energie.com

Company type

Private

Founded year

1998

Operating status

Operating

Headcount range

11–50 employees

Short description

S&L Energie-Projekte GmbH is the largest European distributor and certified service provider for INNIO Waukesha gas engines, specializing in Lambda-1 rich-burn CHP plant sales, repowering, and engine service for municipal utilities and industrial energy users across Western Europe.

Ownership category

akta.pro rank

Product category

Industrial Gas Engine Distribution and CHP Plant Services

NAICS

Ventilation, Heating, Air-Conditioning, and Commercial Refrigeration Equipment Manufacturing (3334), Air and Gas Compressor Manufacturing (333912), Pump and Compressor Manufacturing (33391)

SIC

Engines & Turbines (3510), Cogeneration Services & Small Power Producers (4991), Oil & Gas Field Machinery & Equipment (3533)

akta.pro primary industry

Gas Plant Operations, Maintenance & Turnarounds (O&M Services) (EUAAABAK)

akta.pro secondary industries

Oil & Gas Midstream & Pipeline O&M (Pipelines, Compressor Stations) (EUAEAGAF), Refinery & Petrochemical O&M / Maintenance Outsourcing (EUAEAGAG), HVAC & Industrial Ventilation (Chillers, AHUs, Exhaust, Filtration) (EUAEAFAE)

Keywords

• Gas engine distribution
• CHP plant solutions
• Engine maintenance services
• Combined heat and power
• CHP plant modernization

Headquarters

HQ city

Spelle

HQ country

Germany

HQ region

Europe

Offices3 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Engine Sales and Distribution: Sales and distribution of INNIO Waukesha gas engines as authorized distributor for Germany, Austria, Switzerland, Netherlands, Belgium, and Italy (service and spare parts).
2. Service and Maintenance: Service on gas engines and compressors including maintenance, repair, and spare parts. Access to numerous highly qualified and Waukesha certified service engineers with special tools and own fleet of special vehicles.
3. CHP Solutions and Repowering: Complete solutions for CHP and compressor installations independent of engine make, especially repowering of CHP plants. Includes complete solutions for CHP balance of plant and control systems from a single source.

Pricing tiers

Go-to-market motion2 records

Distribution channels3 records

Marketing channels5 records

Core offering

S&L Energie-Projekte GmbH is the authorized INNIO Waukesha gas engine distributor for large parts of Western Europe, selling and servicing industrial gas engines and complete Combined Heat and Power (CHP) plant solutions. The business operates three segments — Engines (sales and distribution of Waukesha gas engines), Service (maintenance, repair, and spare parts), and Solutions (complete CHP and compressor installations, repowering, and modernization independent of engine make). S&L specializes in Waukesha Lambda-1 rich-burn CHP technology that achieves >95% overall efficiency with very low NOx and methane emissions.

Product overview

S&L Energie-Projekte GmbH offers a comprehensive portfolio of gas engine and CHP (Combined Heat and Power) plant solutions. The core offering centers on INNIO Waukesha gas engines, specifically the Lambda-1 (rich burn) series, complemented by three business segments: Engines (sales and distribution of Waukesha gas engines), Service (maintenance, repair, and spare parts for gas engines and compressors), and Solutions (complete CHP and compressor installation solutions, including repowering and modernization). The product range includes Lambda-1 CHP modules with 3-way catalysts achieving >95% overall efficiency, various engine models (L7042G, VHP 9394GSI, P48GSID, P9390GSI, 275GL), CHP control systems, and 3D scanning/digital twin technology for plant planning. The company also provides certified engine rebuilding and component remanufacturing services up to approximately 5 MW engine power.

Differentiator

Problem solved

Functional benefit

Products and services

• Waukesha Lambda-1 Gas Engines (INNIO) — Sales and Distribution Authorized distribution of INNIO Waukesha industrial gas engines featuring Lambda-1 (rich burn) combustion technology with 3-way catalysts, achieving high overall efficiency (>95%) and low emissions including NOx below 50 mg/Nm³. Sold to CHP plant operators, municipal utilities, industrial customers, and commercial building operators across Western Europe.
• Lambda-1 CHP Modules Combined Heat and Power (CHP) units based on Waukesha Lambda-1 engines, supplied with VDE-AR-N 4110 grid code certificate, available in power ranges from 340 kWe to 1.5 MWe electrical. Designed for cogeneration applications (heat + power, plus absorption cooling) with high overall efficiency and low methane emissions.
• Engine Service and Maintenance for Waukesha Gas Engines Comprehensive service on Waukesha gas engines and reciprocating compressors, including maintenance, repair, and spare parts supply. Delivered through Waukesha-certified service engineers with special tools and a dedicated fleet of service vehicles across Western Europe (and select engagements worldwide, e.g., Egypt).
• Repowering and Modernization Solutions for CHP and Compressor Plants Complete turnkey solutions for CHP and compressor installations — including full repowering (exchange of CHP unit) or overhaul of engine, generator, compressor, and balance-of-plant components, independent of engine make. Includes planning, project management, construction supervision, and CHP control systems integration.
• Genuine Waukesha Spare Parts (European Warehouse Distribution) Distribution of genuine Waukesha spare parts from the largest European warehouse operated by S&L, ensuring rapid availability of OEM-quality parts for maintenance and repair across the European distributor footprint.
• Certified Engine Rebuilding and Component Remanufacturing Waukesha certified workshop services for repair and reconditioning of Waukesha engines and components up to approximately 5 MW engine power, including Certified Engine Rebuilding and Certified Component Remanufacturing. DIN EN ISO 9001 certified since 1998 and SCC** certified since 2006.

Quantifiable outcome

• Overall efficiency >95% with Lambda-1 CHP units
• +6 more outcomes

Named customers13 records

Segments3 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

Seven partnerships are on record, tiered core and major.

• INNIO Waukesha Gas Engines, Inc.coreChannel Partner/ Reseller/ Distributor · 1 December 2011INNIO Waukesha Gas Engines, Inc. (headquartered in Waukesha, Wisconsin, USA with production facilities in Welland, Ontario, Canada) is one of the world's leading manufacturers of industrial gas engines. S&L has been an authorized distributor and service provider for Waukesha since 1998, responsible for Germany, Austria, Switzerland, Netherlands, Belgium, and Italy (service/spare parts only). Over 100 years synonymous with reliable, robust and efficient gas engines.
• S&L Energie-Projekte B.V.coreStrategic or Co-development PartnerAffiliate company in the Netherlands, active in the Netherlands (including offshore) and Belgium. Part of the STORM group alongside S&L Energie-Projekte GmbH (Germany) and S&L Energie-Projekte S.R.L. (Italy).
• S&L Energie-Projekte S.R.L.coreStrategic or Co-development PartnerAffiliate company in Italy (Sommacampagna). Part of the STORM group alongside S&L Energie-Projekte GmbH (Germany) and S&L Energie-Projekte B.V. (Netherlands).
• August Storm GmbH & Co. KGcoreImplementation/ SI/ Consulting PartnerOne of the largest European OEM-independent reconditioning and overhauling companies for industrial engines. Service company for stationary and mobile internal combustion engines and reciprocating compressors. Co-operation with S&L in engine reconditioning and repair plus service for gas engines. S&L partner for control systems for CHP plants.
• Wulf Johannsen KG GmbH & Co.majorImplementation/ SI/ Consulting PartnerEngine reconditioning and service for stationary and mobile internal combustion engines and piston compressors in Northern Germany. Co-operation with S&L in the field of engine reconditioning and service of gas engines. Wulf Johannsen facility in Kiel rebuilt engines for Hamburg Airport modernization project.
• Hansewerk Natur GmbHmajorStrategic or Co-development PartnerGerman energy company for which S&L provided lead design consultancy services for CHP projects including EVS Sylt (Westerland). Multiple projects completed together including planning assignments and project management for district heating CHP installations.
• GE JenbachermajorTechnology or IntegrationPart of INNIO Group alongside Waukesha. S&L provides integration services for GE Jenbacher CHP modules including E.ON Hanse Wärme projects (Stapelfeld 10 MW, Hamburg-Hohenhorst, Hamburg-Neuenfelde). Projects since 2005 successfully collaborated on 30+ cogeneration plant modernization projects.

Scale indicators7 records

Recent moves6 records

Expansion highlights6 records

Broad incumbents

• Wärtsilä: Finnish manufacturer of large gas engines and energy solutions for power plants, marine, and oil & gas. Competes with S&L in larger-scale gas engine applications and gas processing platform installations (e.g., comparable to S&L's Egyptian projects).
• Viessmann Climate Solutions: German heating, industrial, and refrigeration systems provider with CHP and decentralized energy offerings. Overlaps with S&L in commercial building and district heating applications, with comparable focus on efficiency and emissions compliance.
• Rolls-Royce Power Systems (MTU): Provider of MTU-brand gas engines and power systems for CHP, gas compression, and industrial applications. Competes with S&L/Waukesha in larger-scale CHP and gas compression projects, with broader product portfolio across diesel and gas.
• MAN Energy Solutions: Major German energy technology company offering large-scale gas engines, turbines, and CHP systems. Overlaps with S&L in industrial-scale CHP and oil & gas compression; MAN Energy Solutions is also where S&L's recent hire Christian Frekers gained 12 years of gas engine experience.
• Bosch Energy Solutions: German energy solutions provider offering CHP, heat pumps, and integrated energy systems. Competes with S&L in commercial and industrial CHP market segments, with broader portfolio of energy transition technologies.

Direct peers

• TEDOM: Czech-based gas engine and CHP manufacturer offering units from 8 kW to 4 MW. Competes with S&L in Central European CHP retrofits and new installations, with strong overlap in municipal utility and industrial customer segments.
• INNIO Jenbacher: Sister brand under INNIO Group alongside Waukesha. Jenbacher is the primary direct competitor to Waukesha in industrial gas engines for CHP and gas compression, with overlapping product ranges and a strong European installed base. S&L even integrates Jenbacher units (e.g., EVS Sylt project) while competing against them in the broader market.
• 2G Energy AG: German manufacturer of gas engine CHP systems in the 20 kW to 4.5 MW range. Directly competes with S&L/Waukesha in the European industrial CHP market, including municipal utilities, hotels, hospitals, and commercial buildings. Both target the same regulatory-driven repowering wave.
• Caterpillar Energy Solutions (MWM): German gas engine manufacturer (formerly MWM) owned by Caterpillar, producing CHP units in the 0.4-4.5 MW range. Headquartered in Mannheim, it directly competes with S&L/Waukesha in German Stadtwerke and industrial CHP markets, with comparable emissions technology.
• AB Energy: Italian manufacturer of gas engine CHP systems, particularly strong in southern Europe. Operating in Italy directly overlaps with S&L's Italian affiliate (S&L Energie-Projekte S.R.L.), competing for the same municipal and industrial CHP customers.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks7 records

Key highlights7 records

Customer concentration

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• Instagraminstagram.com/slenergie
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• YouTubeyoutube.com/channel/UCYJ3aY7c0qV5JwvZ3kJ5bDA

Compliance3 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles6 records

Subsidiaries2 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 S&L Energy Projects