STAWAG

What STAWAG does

STAWAG (Stadt- und Städteregionswerke Aachen AG) is a German municipal energy and utility company headquartered in Aachen, founded in 1967 and employing 501-1,000 staff. Its wholly-owned subsidiary Regionetz GmbH (joint with EWV) owns and operates the regulated networks for electricity, gas, water, and district heating across the city of Aachen, the Städteregion Aachen, and parts of the neighboring Kreise Heinsberg and Düren. The group's portfolio spans core utility supply (Ökostrom and standard electricity, gas/Ökogas, drinking water, Nahwärme and Fernwärme district heating), renewable heating hardware (heat pumps, hybrid heating, gas condensing boilers, storage heaters sold via store.stawag.de), photovoltaic system installation, electromobility (charging cards and public charging infrastructure), and the nascent deep geothermal (Tiefengeothermie) initiative anchored by 39 km of 2D seismic surveys completed in December 2025 under the Masterplan Geothermie NRW program.

Revenue is generated principally through recurring monthly subscription tariffs on electricity, gas, water and district heating, augmented by multi-year installment purchase (Ratenkauf) and rental (Wärme Flex) contracts on heating hardware that bundle planning, installation and maintenance. One-time PV and heating hardware sales are routed through the e-commerce storefront. The company is structured as a municipal Aktiengesellschaft (non-listed) within the E.V.A. (Energieversorgungs- und Verkehrsgesellschaft mbH Aachen) holding group, with ownership ultimately anchored in the public sector. Distribution is omnichannel: self-serve online portal, physical customer center, telephone customer service, field-sales heating advisory for residential and commercial customers, and a certified regional installer network managed via regio-energiegemeinschaft e.V.

Go-to-market targets three tiers - residential Privatkunden (with niche student tariffs like Öcher StudiStrom), commercial Gewerbekunden, and larger Geschäftskunden - while placing increasing weight on bundled offerings, digital onboarding, EV and heat-pump add-ons, and heating-finance products that exploit the GEG/Heizungsgesetz retrofit cycle. Sustained 2025/2026 "Top Lokalversorger" rankings from DEUTSCHLAND TEST / Focus Money for electricity, gas, water and heat indicate continued local competitive strength.

Name

STAWAG

Legal name

STAWAG – Stadt- und Städteregionswerke Aachen AG

Website

https://stawag.de

Company type

Private

Founded year

1967

Operating status

Operating

Headcount range

501–1,000 employees

Short description

STAWAG is a German municipal utility (Stadtwerke) headquartered in Aachen that supplies electricity, gas, water, district heating, photovoltaic systems, EV charging and heating hardware to residential, commercial and business customers across the Aachen region, operating the underlying networks through subsidiary Regionetz GmbH.

Ownership category

akta.pro rank

Product category

Municipal Energy and Utility Services

NAICS

Electric Power Generation, Transmission and Distribution (2211), Geothermal Electric Power Generation (221116), Steam and Air-Conditioning Supply (221330)

SIC

Electric, Gas & Sanitary Services (4900), Electric Services (4911), Water Supply (4941)

akta.pro primary industry

Geothermal Power Plant EPC (EUAEAAAE)

akta.pro secondary industries

Gas-Fired Power Plant O&M and Life-Extension/Repowering Services (EUACABAJ), Geothermal Power Plant EPC & Construction (Surface Facilities, Balance of Plant) (EUAMAEAE)

Keywords

• Municipal utility services
• Electricity and gas supply
• District heating networks
• Drinking water supply
• Energy transition solutions

Headquarters

HQ city

Aachen

HQ country

Germany

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B and B2C

Offering type

Services

Cost components

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

Revenue model

1. Electricity Supply: STAWAG generates revenue through electricity distribution and supply to residential and commercial customers in the Aachen region. The company offers eco-electricity (Ökostrom) and standard electricity products.
2. Gas Supply: Natural gas and eco-gas (Ökogas) supply to customers, including heating applications and industrial use.
3. Water Supply: Drinking water supply services to residential and commercial customers in the Aachen region.
4. District Heating: Supply of district heating (Fernwärme) and local heating (Nahwärme) to connected buildings, with exploration of geothermal sources for sustainable heat supply.
5. Heating Solutions (Ratenkauf/Rental): Installment-based purchase ('Ratenkauf') of heating systems (heat pumps, hybrid systems, gas condensing boilers) with included planning, installation, and maintenance over 10-15 year terms. Also offers flexible rental heating ('Wärme Flex').
6. Photovoltaic Systems: Sale and installation of photovoltaic systems with or without storage, including planning, delivery, and installation services.
7. Electromobility: EV charging solutions including charging cards for eco-electricity customers and public charging infrastructure.

Pricing tiers

Go-to-market motion3 records

Distribution channels8 records

Marketing channels11 records

Core offering

STAWAG is a regional municipal utility that supplies electricity (incl. Ökostrom), natural gas (incl. Ökogas), drinking water, and district heating (Fernwärme/Nahwärme) to households, commercial and business customers in the Aachen region. Beyond utility supply, it sells and finances heating systems (heat pumps, hybrid, gas condensing, storage heaters and the Wärme Flex rental model), installs photovoltaic systems, operates EV charging infrastructure, and is exploring deep geothermal energy for sustainable district heating.

Product overview

STAWAG (Stadt- und Städteregionswerke Aachen AG) is a municipal energy utility offering a comprehensive portfolio of energy and utility products. The core offering includes Ökostrom (green electricity), Gas including Ökogas (eco-gas), Wasser (water supply), and Wärme (district heating via Nahwärme/Fernwärme). The product portfolio extends to add-on modules including Photovoltaik (solar panel installations), Elektromobilität (EV charging), and Heizung (heating systems with heat pumps, hybrid systems, and gas condensing technology). Digital services include an Online-Store powered by gjuce GmbH for purchasing heating and solar products, and loyalty programs (Treue-Bonus and Klömpche). The company also operates Tiefengeothermie (deep geothermal) as a future sustainable heating initiative. STAWAG serves residential (Privatkunden), commercial (Gewerbekunde), and business (Geschäftskunde) segments with specialized tariffs like Öcher StudiStrom for students.

Differentiator

Problem solved

Functional benefit

Products and services

• Ökostrom (Green Electricity) Eco-certified renewable electricity supply contract for households and businesses in the Aachen region, with verified sustainability credentials.
• Gas and Ökogas Supply Natural gas supply contracts for heating and energy use, including an environmentally friendly Ökogas variant with sustainability certification.
• Wasser (Drinking Water Supply) Drinking water supply service delivered through municipal networks to residential and commercial customers in the Aachen region.
• Fernwärme (District Heating) Centralized district heating supply to connected buildings via Fernwärme networks, with future sources under exploration including deep geothermal.
• Nahwärme (Local Heating) Local heating network solutions providing heat to clusters of buildings and community-scale developments.
• Photovoltaik (Photovoltaic Systems) Sale, planning, delivery and installation of solar PV systems with optional battery storage for residential and commercial properties.
• Elektromobilität (Electric Mobility) Electric vehicle charging offerings including charging cards for eco-electricity customers, public charging infrastructure, and EV test-drive events.
• Heizung (Heating Systems) End-to-end heating solutions comprising heat pumps, hybrid heating systems, gas condensing boilers, and storage heaters, with planning, installation, and optional maintenance bundled into installment or rental contracts.
• Luft-Wasser-Wärmepumpe (Air-to-Water Heat Pump) Air-to-water heat pump systems for efficient residential heating, available via the online store with installment purchase financing.
• Hybridheizung (Hybrid Heating) Hybrid system combining a heat pump with a gas condensing boiler, providing flexible heating that integrates renewable energy with conventional gas heating.
• Speicherheizung (Storage Heating) Modern storage heaters with intelligent control systems, available either for purchase or as part of the Wärme Flex rental offering.
• STAWAG Wärme Flex Flexible rental heating ('Mietheizung') offering a complete transitional heating-as-a-service package including planning, installation, maintenance and removal.
• Online-Store (store.stawag.de) E-commerce platform operated by STAWAG (powered by gjuce GmbH) for purchasing heating systems, photovoltaic installations and related products with installation quote requests.
• Öcher StudiStrom Special localized electricity tariff designed for university students in Aachen.
• Eco-Power for Students English-language green electricity tariff aimed at international students studying in Aachen.
• Tiefengeothermie (Deep Geothermal Project) Sustainable heating supply project using deep geothermal energy (hydrothermal technology) to provide climate-friendly district heating for the Aachen region, currently in exploration phase after 2D seismic surveys were completed in December 2025.
• Treue-Bonus (Loyalty Bonus) Customer loyalty program offering increasing discounts on STAWAG services based on contract duration.
• Klömpche Customer loyalty program offering vouchers for local partners, exclusive events and behind-the-scenes experiences.

Quantifiable outcome

• Deep geothermal could supply renewable heat for district heating in Aachen region
• +2 more outcomes

Named customers6 records

Segments6 records

Ideal customer profiles5 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature3 records

Partnerships

Six partnerships are on record, tiered core and minor.

• Regionetz GmbHcoreStrategic or Co-development PartnerRegionetz GmbH is a wholly-owned subsidiary of STAWAG (and EWV) responsible for grid operations including electricity, gas, heat, and water networks in Aachen, Städteregion Aachen, and parts of Kreise Heinsberg and Düren. Regionetz handles all network connection, maintenance, and infrastructure management tasks.
• E.V.A. (Energieversorgungs- und Verkehrsgesellschaft mbH Aachen)coreStrategic or Co-development PartnerE.V.A. is the parent company/holding for STAWAG and other energy companies in the Aachen region. E.V.A. provides HR services including recruitment for STAWAG through its Center Personal und Arbeitsrecht.
• IPS (Ingenieurdienstleister)minorStrategic or Co-development PartnerIPS is an engineering service provider engaged as 'Permitter' for the deep geothermal project, responsible for obtaining all necessary permits and permissions (e.g., rights of way) for seismic measurements from property owners and authorities.
• regio-energiegemeinschaft e. V.minorImplementation/ SI/ Consulting Partnerregio-energiegemeinschaft e. V. (AachenMünchener Platz 4, 52064 Aachen) manages the installer directory for Aachen and surrounding municipalities, maintaining the registry of certified installation companies for electricity, gas, water, and heating work.
• Masterplan Geothermie NRWcoreStrategic or Co-development PartnerNorth Rhine-Westphalia state program supporting deep geothermal exploration. STAWAG receives approximately 50% funding for 2D seismic investigations through this program, with potential for additional federal and state funding for subsequent phases.
• NUM3RUS GmbHminorOthersNUM3RUS GmbH (Im Jagdfeld 45, 41464 Neuss) serves as STAWAG's external Data Protection Officer, providing GDPR compliance services.

Scale indicators4 records

Recent moves6 records

Expansion highlights6 records

Direct peers

• N-ERGIE Aktiengesellschaft: N-ERGIE is a regional energy supplier headquartered in Nuremberg serving northern Bavaria with electricity, gas, water, and district heating. Comparable to STAWAG as a mid-sized German municipal/regional multi-utility with a similar Stadtwerke-style offering and energy-transition focus.
• Stadtwerke München (SWM): SWM is one of Germany's largest municipal multi-utilities, providing electricity, gas, district heating, water, and public transport in Munich. It is directly comparable to STAWAG as a German Stadtwerke operating a multi-commodity portfolio with a strong municipal ownership model and active geothermal/renewable heating investments.
• Stadtwerke Köln: Stadtwerke Köln is a municipal utility serving the Cologne region with electricity, gas, water, and district heating. It is closely comparable to STAWAG in scope (multi-utility Stadtwerke), customer segments (residential and commercial), and business model (regulated distribution plus retail energy).
• Lechwerke AG (LEW): LEW is a regional energy supplier in southern Germany providing electricity, heat, and energy services, partially owned by municipal shareholders. Comparable to STAWAG as a regional multi-utility with municipal ownership, heating offerings, and energy-transition positioning.
• Stadtwerke Düsseldorf: Stadtwerke Düsseldorf is the municipal multi-utility for Düsseldorf, supplying electricity, gas, water, and district heating along with e-mobility and energy services. Highly comparable to STAWAG in scale, product portfolio, and Stadtwerke operating model.
• Mainova AG: Mainova is the municipal energy provider for Frankfurt am Main, offering electricity, gas, water, district heating, and increasingly heat pumps and e-mobility. Directly comparable as a German municipal multi-utility with a similar product mix and customer segmentation as STAWAG.

Broad incumbents

• E.ON SE: E.ON is a major European distribution and retail energy company with extensive German network operations and customer-facing energy services including heat pumps and district heating. Comparable to STAWAG as an incumbent utility player in overlapping end markets, though at significantly larger scale and with a national/international footprint.
• RWE AG: RWE is a leading European utility with renewable generation, district heating, and grid operations in Germany. Comparable as a broad German energy incumbent active in district heating and renewable generation — overlapping with STAWAG's geothermal exploration and district heating business.
• EnBW Energie Baden-Württemberg AG: EnBW is one of Germany's largest integrated energy companies with generation, distribution, and retail across electricity, gas, and district heating. Comparable as a German utility incumbent operating across many of the same product categories as STAWAG but at vastly greater scale and with private/public shareholders.
• Vattenfall Wärme Berlin: Vattenfall Wärme operates one of Germany's largest district heating networks in Berlin and is actively transitioning toward climate-neutral heating including geothermal and large-scale heat pumps. Comparable to STAWAG as a major district heating operator with explicit geothermal/decarbonization strategy, though at much larger scale.

Market position

Strengths3 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights6 records

Customer concentration

• YouTubeyoutube.com/channel/UC8Pltzjesd06s8OVzw9a4aA
• Facebookfacebook.com/STAWAG
• LinkedInlinkedin.com/company/stawag
• Instagraminstagram.com/stawag_aachen
• TikToktiktok.com/@stawag_aachen
• Xx.com/stawagaachen

Revenue estimate

Valuation estimate

Number of profiles

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 STAWAG