What Stadtwerke Saarlouis does

Stadtwerke Saarlouis GmbH is a municipal utility company (Stadtwerk) headquartered in Saarlouis, Germany, supplying electricity, natural gas, drinking water, and fiber optic internet to residential, commercial, and industrial customers in its licensed territory. Founded in 1989, the company is owned by Wirtschaftsbetriebe Saarlouis GmbH (51%) and energis GmbH (49%) and holds statutory Grundversorger (default supplier) status for electricity, gas, and water. As of FY2023 the company delivered 74.2 GWh of electricity, 83.4 GWh of gas, and 2,070 Tcbm of water, served through 613 km of electricity, 147 km of gas, and 238 km of water networks, with 26,373 electricity, 6,280 gas, and 13,174 water meter points. Revenue of €61.701 million on a balance sheet total of €107.920 million (equity €49.372 million, debt €58.548 million) was generated by a 133-person workforce.

The product and technology stack extends well beyond commodity supply. Since 2009 the company has built its own FTTH fiber optic network — 418 km deployed with 564 house connections — delivering broadband tiers at 300, 600 and 1,000 Mbit/s and, more strategically, providing a closed monitoring loop over electricity, gas, water and heating infrastructure. Revenue is predominantly subscription-based: monthly fees plus consumption-based charges per kWh/m³ across electricity, gas and water tariffs (standard, eco/hydropower, dynamic exchange-priced, EV-specific and heat-electricity variants), recurring fiber subscriptions, and usage-based EV charging fees across 38 charging points at 18 locations including 2 fast chargers at 150 kW. Heat pump and photovoltaic packages, delivered through regional specialist partners, plus new dynamic tariffs and active R&D consortia (SURF, 5G-SLS, ModellEEGe, GridAnalysis, FlexChain) round out the go-to-market.

The business is operated through several subsidiaries: wholly-owned Netzwerke Saarlouis GmbH for network infrastructure and Stadtwerke Saarlouis Infrastruktur GmbH & Co KG for infrastructure assets, a 66 2/3% stake in fws GmbH & Co. KG, a 20% stake in DigitalWerk Saar GmbH, and minority holdings in renewable energy ventures (Windpark Saar GmbH & Co. KG, Neustromland GmbH & Co. KG, Kommunale Beteiligungsgesellschaft Saar mbB). Customer acquisition combines a physical customer center, inside sales via phone/video, a self-service online portal, and a 'Kunde wirbt Kunde' referral program, with a dedicated field sales team for commercial and special-contract customers.

Name

Stadtwerke Saarlouis

Legal name

Stadtwerke Saarlouis GmbH

Website

https://swsls.de

Company type

Private

Founded year

1989

Operating status

Operating

Short description

Stadtwerke Saarlouis is a German municipal utility supplying electricity, natural gas, drinking water, and FTTH fiber internet to residential and commercial customers across Saarlouis, plus EV charging and heat pump/PV packages.

Ownership category

akta.pro rank

Headquarters

HQ city

Saarlouis

HQ country

Germany

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B and B2C

Offering type

Services

Cost components

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

Revenue model

1. Electricity Supply: Supply of electricity to residential, commercial, and industrial customers. Multiple tariff products including standard, eco, and dynamic pricing. Revenue from base fee plus consumption-based (per kWh) charges.
2. Natural Gas Supply: Supply of natural gas for heating and cooking. Tariffs include Grundversorgung (default) and cheaper alternatives. Revenue from base fee plus consumption charges.
3. Drinking Water Supply: Supply of drinking water to households and businesses. Revenue from consumption-based water pricing.
4. Fiber Optic Internet Services: Fiber optic internet connectivity services (FTTH) with speeds up to 1 Gbit/s. Multiple tariff tiers (300, 600, 1000 Mbit/s). Monthly subscription fees.
5. E-Mobility Services: Public charging infrastructure (38 charging points at 18 locations including 2 fast chargers at 150 kW), charging card sales. Revenue from charging fees.
6. Energy Packages: Combined packages for heat pumps and photovoltaic systems offered with regional specialist partners. Installation and service fees.
7. Grid Services: Network operation for electricity, gas, and water distribution. Regulatory revenue from grid fees. Technical services including meter operation, house connections, and network documentation.

Pricing tiers

Go-to-market motion3 records

Distribution channels5 records

Marketing channels6 records

Core offering

Stadtwerke Saarlouis is a municipal utility that supplies electricity, natural gas, drinking water, and high-speed fiber optic internet to residential and commercial customers in Saarlouis, Germany. It complements these core utilities with EV charging infrastructure, heat pump and photovoltaic packages, dynamic electricity tariffs, and a digital self-service portal supported by the E-Louisa chatbot. The company also operates its own 418 km FTTH fiber network and electricity/gas/water distribution grids as the regulated default supplier (Grundversorger) in its territory.

Product overview

Stadtwerke Saarlouis is a municipal utility company providing integrated energy and digital services for residential and business customers in the Saarlouis region. The company operates as a multi-utility provider offering electricity (Strom) products including standard tariffs (SaarStrom, PrivatStrom), eco-friendly options, and electric vehicle charging solutions, alongside natural gas (Erdgas) services for heating and cooking, drinking water (Trinkwasser) supply, and fiber optic internet (Glasfaser) connectivity with speeds ranging from 300 to 1000 Mbps. The portfolio also includes sustainable energy solutions such as photovoltaic and heat pump packages, digital customer services through online portals and the AI-powered chatbot E-Louisa, and various research initiatives exploring 5G applications, AI-driven grid analysis, and blockchain-based flexibility platforms. The product architecture consists of core utility services (electricity, gas, water, fiber), value-added modules (eco tariffs, premium offerings), digital platforms (customer portals), and emerging technology research projects.

Differentiator

Problem solved

Functional benefit

Brands

• E-Louisa: Digital employee/virtual assistant for customer service inquiries

Products and services

• Electricity Supply (Strom)
• Natural Gas Supply (Erdgas)
• Drinking Water Supply (Trinkwasser)
• Fiber Optic Internet (FTTH Glasfaser)
• EV Charging Services (Elektromobilität)
• Heat Pump Package (Wärmepumpen Paket)
• Photovoltaic Package (Photovoltaik Paket)
• Dynamic Electricity Tariff (Dynamischer Stromtarif)
• E-Louisa Digital Assistant
• Grid Services (Netzdienstleistungen)

Quantifiable outcome

• 418 km fiber optic network deployed, 564 house connections
• +2 more outcomes

Segments4 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

AI capability2 records

Feature5 records

Partnerships

Seven partnerships are on record, tiered core and minor.

• SURF Project ConsortiumcoreStrategic or Co-development Partner · 1 January 2024Research project 'Smarte, userzentrierte regionale Flexibilitätsplattform für Netz und Markt' (SURF) developing an innovative flexibility platform for controlling decentralized consumption and generation facilities to proactively prevent local grid bottlenecks and minimize grid expansion. Consortium includes partners from economy and science.
• 5G-SLS Project ConsortiumcoreStrategic or Co-development Partner · 1 January 2024Project using 5G mobile technology to display Stadtwerke Saarlouis' electricity and water network equipment on reality glasses (AR), enabling field technicians to make quick, informed decisions during fault events.
• ModellEEGe ConsortiumcoreStrategic or Co-development Partner · 1 January 2024Development of an operator model for Renewable Energy Communities (EEGe) and concepts for sharing jointly produced energy. Collaboration on energy community frameworks.
• GridAnalysis ConsortiumcoreStrategic or Co-development Partner · 1 January 2024Development of new models and methods for simulating electricity grids by combining classical grid calculation with machine learning and artificial intelligence (KI) methods.
• FlexChain / AWS InstitutminorStrategic or Co-development Partner · 1 January 2024Blockchain-based use of micro flexibilities to avoid local bottleneck situations in the electricity grid. Collaboration with AWS Institut.
• Regional Specialist Partners (Photovoltaik/Wärmepumpe)coreChannel Partner/ Reseller/ Distributor · 1 January 2024Collaboration with regional specialist partners for heat pump (Wärmepumpen Paket) and photovoltaic (Photovoltaik Paket) installation and services.
• Netzwerke Saarlouis GmbHcoreTechnology or Integration · 1 January 2023100% owned subsidiary managing network infrastructure operations.

Scale indicators19 records

Recent moves6 records

Expansion highlights5 records

Market position

Weaknesses5 records

Competitive moat5 records

Customer concentration

• LinkedInlinkedin.com/company/stadtwerke-saarlouis

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

Subsidiaries9 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 Stadtwerke Saarlouis