Städtische Werke

What Städtische Werke does

Städtische Werke AG is a municipal multi-utility headquartered in Kassel, Germany, operating as part of the KVV (Kasseler Verkehrs- und Versorgungs-GmbH) group, which employs approximately 2,000 people and is owned by the city of Kassel. The company supplies over 150,000 residential and commercial customers with 100% green electricity, natural gas, and district heating, having been climate-neutral since October 2007. Its energy generation portfolio includes four co-owned wind parks in North Hesse producing ~224 million kWh annually, a regional virtual power plant aggregating distributed renewable assets, and a small hydropower plant.

Beyond core energy supply, Städtische Werke operates four public swimming facilities (Auebad, Hallenbad Süd, Freibad Wilhelmsh\u00f6he, and Freibad Harleshausen) serving ~612,000 visitors per year, an EV charging network of 62 locations and 290 charging points (including 17 fast-chargers up to 150 kW), and a fiber optic telecommunications service (Viyonet) covering 45,000 households in partnership with Telekom Deutschland. Its go-to-market combines direct digital channels (online tariff calculator, customer portal, Meine-Werke app, Chatbot Samy), an inside-sales hotline, an outside field sales team, a mobile consultation bus (Energiemobil), and a referral/affiliate program (PowerSeller).

The company generates revenue through subscription-based utility supply, transaction-based public bath admissions, usage-based EV charging, and professional services (energy consulting, solar/heat pump packages, and Post-EEG support). Its competitive positioning rests on 18 years of green-electricity brand equity, local renewable generation, integrated infrastructure, and ongoing diversification into dynamic tariffs, e-mobility, fiber, and customer-loyalty benefits through the Pluswelt program.

Name

Städtische Werke

Legal name

Städtische Werke AG

Website

https://sw-kassel.de

Company type

Private

Founded year

1900

Operating status

Operating

Headcount range

1,001–5,000 employees

Short description

Städtische Werke AG is a Kassel-based municipal multi-utility owned by the city of Kassel via KVV, supplying 150,000+ households with green electricity, gas, and district heating, and operating wind parks, public baths, EV charging, and fiber optic services across North Hesse.

Ownership category

akta.pro rank

Product category

Municipal Energy and Utility Services

NAICS

Electric Power Generation, Transmission and Distribution (2211), Steam and Air-Conditioning Supply (221330)

SIC

Electric Services (4911), Electric, Gas & Sanitary Services (4900)

akta.pro primary industry

C&I Onsite/Behind-the-Meter Energy Supply (Solar, CHP, Microgrids) (EUAGACAJ)

akta.pro secondary industries

DER Aggregation & Virtual Power Plants (VPPs) (EUAMAJAC), EV Charging as DER (Managed Charging, V2G/V2B) (EUAMAJAL), Onsite Low-Carbon Heat & CHP (Electrified CHP, Fuel Cells, Renewable CHP) (EUABAJAI), Distributed & Commercial Renewable O&M (Rooftop Solar, C&I Wind, Small Hydro) (EUAMAGAB)

Keywords

• Municipal energy supply
• Green electricity tariffs
• District heating services
• EV charging infrastructure
• Fiber optic telecommunications

Headquarters

HQ city

Kassel

HQ country

Germany

HQ region

Europe

Offices1 record

Markets served

GTM type

B2C

Offering type

Services

Cost components

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

Revenue model

1. Electricity supply (Strom): Supply of 100% green electricity to residential and commercial customers across Germany. Core residential and SME product line, with nationwide competitive pricing. The company claims to be Germany's cheapest provider for electricity and gas.
2. Natural gas supply (Erdgas): Supply of natural gas to residential and commercial customers, positioned as nationwide affordable. Competes nationally on price.
3. District heating (Fernwärme): Supply and distribution of district heating for comfort and environmentally friendly heating solutions in Kassel.
4. Swimming bath operations (Bäder): Operation of four public swimming facilities (Auebad, Freibad Wilhelmshöhe, Freibad Harleshausen, Hallenbad Süd) generating admission revenue. Combined ~612,000 annual visitors.
5. E-Mobility charging infrastructure: Public EV charging network with 62 locations/290 charging points, charging per kWh (53 cents/kWh with STW card, 59 cents/kWh ad-hoc at some locations). Revenue from charging sessions.
6. Telecommunications (Viyonet/Glasfaser): Fiber optic internet, telephone, TV and cloud services via Viyonet brand, offered jointly with Telekom Deutschland infrastructure.
7. Energy services and consulting: Energy consulting, energy certificates, PV packages, heat pump packages, subsidy advice, and smart home products (Nest Wärme). Also generates revenue through partner commissions from NIU e-scooter sales.
8. Pluswelt customer benefits program: Customer loyalty program offering exclusive discounts and benefits including moving services, magazines, e-scooter sharing, car sharing, and bus tickets.

Pricing tiers

Go-to-market motion3 records

Distribution channels7 records

Marketing channels11 records

Core offering

Städtische Werke AG is a municipal multi-utility supplying 100% renewable electricity, natural gas and district heating to residential and commercial customers in Germany, complemented by e-mobility charging, fiber optic internet (Viyonet), public swimming facilities and energy consulting services. The company owns and operates four regional wind parks, a virtual power plant and a public EV charging network of 62 locations, making it an integrated energy, mobility and telecommunications provider anchored in Kassel.

Product overview

Städtische Werke AG operates as a multi-utility energy provider offering an integrated portfolio of energy products and municipal services. The core energy offering comprises 100% eco-electricity, natural gas (with eco-gas option), and district heating for the Kassel region. The product range extends through specialized energy solutions including solar packages, heat pumps, e-mobility infrastructure (wallboxes, charging tariffs, cards), dynamic electricity tariffs, and virtual power plant services. Beyond energy, the company provides telecommunications via its Viyo fiber optic network and operates four swimming facilities (Auebad, Freibad Harleshausen, Freibad Wilhelmshöhe, Hallenbad Süd). Digital services include the Meine-Werke customer app and chatbot Samy. This diversified structure combines regulated utility services with competitive offerings in renewable energy, mobility, and municipal infrastructure.

Differentiator

Problem solved

Functional benefit

Brands

• Meine-Werke-App: Digital app for managing energy products and services, providing customer portal access and usage tracking
• Stadtwerke Union Nordhessen (SUN)
• ViyoNet
• KasselCard
• Pluswelt
• Energiemobil

Products and services

• \u00d6kostrom (Eco Electricity) 100% renewable electricity supply for private and commercial customers, sourced from regional wind, solar and hydroelectric plants, offered with nationwide competitive pricing.
• Erdgas (Natural Gas) Natural gas supply with nationwide competitive pricing, offered with an eco-gas option for residential and commercial customers across Germany.
• Fernw\u00e4rme (District Heating) Regional district heating supply providing comfortable, environmentally friendly heating for residential and commercial customers in Kassel.
• Kassel Strom Plus Dynamisch (Dynamic Tariff) Variable electricity tariff with dynamic, market-driven pricing for customers who can shift consumption.
• Regionalstrom (Regional Electricity) Renewable electricity sourced directly from local neighbourhood power plants, enabling customers to support regional energy production.
• Solarpaket (Solar Package) Complete photovoltaic system packages for residential rooftops, including installation and consultation services.
• W\u00e4rmepumpe (Heat Pump Packages) Turnkey heat pump solutions for single and two-family homes, including warranty coverage and consultation.
• Nestw\u00e4rme zum Festpreis Fixed-price heating modernization service allowing customers to upgrade heating systems without upfront capital expenditure.
• Post-EEG Service Service package for owners of residential PV installations that have ended their EEG feed-in tariff period, optimising continued self-consumption or marketing.
• HausEngel24 Sicherheitspaket Home emergency assistance package covering plumbing, electrical and locksmith services for residential customers.
• E-Mobilit\u00e4t (Wallbox, Charging Tariff, Charging Card) Wallbox installation, dedicated EV charging tariffs and STW charging cards for residential and business EV owners.
• \u00d6ffentliches E-Ladenetz (Public EV Charging Network) 62-location, 290-point public EV charging network across Kassel with 17 Hypercharger fast-charging points, accessible via STW card or ad-hoc QR payment.
• Viyonet Fiber Optic (Glasfaser) High-speed fiber optic internet, telephone, TV and cloud services under the Viyonet brand, available to approximately 45,000 households in Kassel and Vellmar.
• Energieberatung (Energy Consulting) Energy consulting covering switching to renewable energy, cost reduction, subsidy advice and energy efficiency for households.
• Stromspar-Check Free energy efficiency consulting and appliance replacement support for low-income households, co-financed with EAM, Stadtwerke Wolfhagen and partner organisations.
• Auebad Indoor and outdoor swimming facility in Kassel featuring sport pool, recreational areas, sauna section and AI-supported water safety monitoring.
• Freibad Wilhelmsh\u00f6he Outdoor public swimming pool in Bad Wilhelmsh\u00f6he, opened seasonally in summer.
• Freibad Harleshausen Seasonal outdoor public swimming pool in the Harleshausen district.
• Hallenbad S\u00fcd Indoor public swimming pool in the Br\u00fcckenhof district for sport and recreational swimming.
• Meine-Werke-App Digital customer app providing account management, meter readings, billing and service access for energy customers.
• NIU E-Roller (Partner Sales Program) Subsidised NIU electric scooter sales program offering the N Series with energy price credits to St\u00e4dtische Werke customers.
• Scouter Carsharing Electric car sharing service offered to St\u00e4dtische Werke customers as a Pluswelt benefit.

Quantifiable outcome

• 224 million kWh wind-generated electricity in 2025, covering nearly one-third of Kassel's total electricity consumption
• +5 more outcomes

Named customers3 records

Segments4 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

AI capability6 records

Feature7 records

Partnerships

20 partnerships are on record, tiered core and minor.

• SUN Stadtwerke Union NordhessencoreStrategic or Co-development Partner · 12 June 2026SUN (Stadtwerke Union Nordhessen) is a consortium of six North Hesse energy suppliers (Kassel, Eschwege, Wolfhagen, Homberg/Efze, Bad Sooden-Allendorf, Witzenhausen) that co-owns and operates wind parks including Kreuzstein. Three of four wind parks were planned and built by Städtische Werke AG.
• Kommunalwerke Region KasselcoreStrategic or Co-development PartnerA consortium of eight municipalities in the Kassel district holding co-ownership stakes in the four wind parks, contributing to regional energy independence.
• Bürgerenergiegenossenschaften (Kassel & Söhre, Werra-Meißner, Wolfhagen, Niestetal, Kaufunger Wald, Waldhessische Energiegenossenschaft eG)coreStrategic or Co-development PartnerSix citizen energy cooperatives co-owning the wind parks. These are community-based cooperatives enabling local citizen participation in renewable energy generation.
• Thüga Erneuerbare EnergiencoreStrategic or Co-development PartnerThüga Erneuerbare Energien holds ownership stakes in the wind parks, representing a larger municipal energy group active in renewable energy development.
• Gemeinde Kaufungen and Gemeindewerke LohfeldenminorStrategic or Co-development PartnerMunicipal entities with ownership stakes in the wind parks.
• Telekom DeutschlandcoreStrategic or Co-development PartnerJoint fiber optic network build enabling 45,000 households in Kassel and Vellmar to access gigabit-capable fiber infrastructure. Städtische Werke Netz + Service (NSG) collaborates with Telekom Deutschland on deployment.
• ENERGIE 2000 e.V. (Wolfhagen)minorStrategic or Co-development PartnerENERGIE 2000 e.V. leads the Stromspar-Check (energy saving check) program in Kassel region. Städtische Werke financially supports the program and refers eligible customers.
• Caritasverband Nordhessen KasselminorStrategic or Co-development PartnerPartner in Stromspar-Check initiative supporting low-income households with free energy efficiency consulting.
• BUND Kreisverband KasselminorStrategic or Co-development PartnerEnvironmental organization partner in Stromspar-Check initiative.
• Districts of Kassel, Werra-Meißner, and Schwalm-EderminorStrategic or Co-development PartnerLocal government partners supporting Stromspar-Check program for low-income households in their respective districts.
• Behrend-ImmobilienminorImplementation/ SI/ Consulting PartnerReal estate developer whose property hosts the new 150 kW Hypercharger fast charging station at Nahversorgungszentrum in Fuldatal, operated by Städtische Werke AG.
• HNA (Hessische Niedersächsische Allgemeine)minorImplementation/ SI/ Consulting PartnerRegional newspaper whose press and printing center parking lot hosts eight public EV charging points (4×22 kW AC) operated by Städtische Werke AG, with additional four charging points for HNA staff.
• Voltsangels (Kassel)minorChannel Partner/ Reseller/ DistributorLocal partner selling and servicing NIU electric scooters in Kassel. Städtische Werke AG promotes NIU e-scooters with energy subsidies (200 Frei-kWh) and customer discount pricing via this partner.
• EAM (EAM GmbH & Co. KG)minorStrategic or Co-development PartnerMunicipal energy provider co-financing the Stromspar-Check program for low-income households in the Kassel region.
• Stadtwerke WolfhagenminorStrategic or Co-development PartnerMunicipal utility co-supporting the Stromspar-Check program for low-income households.
• botario GmbHcoreTechnology or IntegrationProvides the chatbot system (Chatbot Samy) for Städtische Werke AG's customer service platform. Connects via API to OpenAI's large language models.
• OpenAI (OpCo, LLC)coreTechnology or IntegrationProvides large language model API (GPT-4) via botario GmbH interface for Chatbot Samy's AI-powered customer conversations. Data transmitted in aggregated form only; not used for training.
• Microsoft Ireland Operations LimitedcoreTechnology or IntegrationProvides Azure OpenAI Service as alternative AI infrastructure for chatbot and potentially other AI-powered services.
• KVG (Kasseler Verkehrs-Gesellschaft)minorStrategic or Co-development PartnerMunicipal transport company offering KVG annual tickets as a customer benefit through the Pluswelt loyalty program.
• Scouter (car sharing)minorGTM or Marketing PartnerCar sharing partner available through Pluswelt customer benefits program, promoting sustainable mobility.

Scale indicators11 records

Recent moves6 records

Expansion highlights6 records

Direct peers

• EWE AG: Municipal-rooted multi-utility serving northwest Germany (Lower Saxony/Brandenburg) with electricity, gas, fiber (EWE TEL), and increasingly heat/e-mobility. Closely comparable as a Stadtwerke-style operator with strong fiber and digital ambitions.
• Stadtwerke München (SWM): Munich municipal utility operating the full Stadtwerke stack — green electricity, gas, district heating (Fernwärme), public swimming (Müller'sches Volksbad, etc.), fiber, EV charging, and tram/subway for parent MVG. Closest direct comparability to Städtische Werke AG as a multi-utility municipal provider in a German mid-/large city.
• Stadtwerke Bonn GmbH: Bonn municipal utility offering electricity, gas, district heating, water, public transport (SWB Bus und Bahn), and pools/leisure (Bonner Bäder). One of the closest single-Stadtwerke equivalents to KVV group's combined energy + mobility + leisure footprint in Kassel.
• RheinEnergie AG: Cologne/Region municipal utility (Stadtwerke Köln subsidiary) supplying electricity, gas, district heating, water and offering fiber, EV charging and energy services. Strong analog to Städtische Werke AG's residential/city-oriented utility model.
• Mainova AG: Frankfurt municipal utility supplying electricity, gas, district heating and water, plus fiber and e-mobility in the Rhine-Main region. Directly comparable multi-product Stadtwerke with renewable generation and bundled household offers.
• N-ERGIE Aktiengesellschaft: Nuremberg/Region municipal utility supplying electricity, gas, district heating, water, fiber and EV charging in Franconia. Nearly identical product portfolio to Städtische Werke AG, including Stadtwerke-style public-interest ownership.

Broad incumbents

• E.ON SE: One of Europe's largest integrated utilities with broad retail energy, networks, and customer solutions in Germany. Competes with Städtische Werke in nationwide electricity/gas supply and on customer solutions, but at vastly greater scale and without the municipal/non-energy leisure footprint.
• EnBW Energie Baden-Württemberg AG: Vertically integrated German utility with generation, grid, retail and e-mobility across southern Germany. Comparable to Städtische Werke on green generation, EV charging (EnBW mobility+), and bundled household offerings, but operates at Länder-scale rather than single-city.

Others

• Thüga Aktiengesellschaft: Holding of more than 100 municipal utilities and an existing co-owner (via Thüga Erneuerbare Energien) of Städtische Werke's wind parks. Ecosystem participant and strategic partner rather than a direct competitor, but the closest industry-architect peer.

Regional players

• Vattenfall GmbH: Swedish-owned utility operating in northern Germany (Berlin, Hamburg) with retail and large-scale renewable/heat projects. Comparable as a low-carbon municipal/city supplier, but does not overlap directly with Städtische Werke's Kassel footprint.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• YouTubeyoutube.com/user/swkassel
• Facebookfacebook.com/swkassel
• Instagraminstagram.com/sw.kassel

Revenue estimate

Valuation estimate

Number of profiles

Profiles7 records

Subsidiaries1 record

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 Städtische Werke