What Stadtwerke Soest does

Stadtwerke Soest GmbH is a municipal utility (Stadtwerke) wholly owned by the City of Soest, registered in North Rhine-Westphalia, Germany (Amtsgericht Arnsberg HRB 5436). The company operates as a vertically integrated multi-utility providing electricity, natural gas, drinking water, wastewater, and district heating — including innovative cold district heating (Kalte Nahwärme) — to residential and business customers in the Soest region. Infrastructure assets include 12,901 electricity, 9,049 gas, 13,713 water and 14,290 wastewater house connections plus 910 district heating units, serving 60,000+ customers with a workforce of 148 employees. Beyond core supply, the company sells distributed energy products (rooftop PV, PV carports, ground-mounted solar, balcony solar, battery storage, wallboxes, public EV charging, CNG mobility) and offers energy consulting, Mieterstrom tenant-electricity solutions, and contracting services; in 2024 it transitioned the majority of household supply to Regionalstrom — 100% green electricity sourced directly from regional renewable assets without certificate trading.

Revenue is generated through subscription/recurring tariffs (Grundversorgung, Regionalstrom, gas, water, district heating), individual business contracts for customers above 10,000 kWh electricity or 100,000 kWh gas, professional services for PV/storage installations and contracting, and network operation fees. Go-to-market combines a regional field sales/key account team for enterprise customers (Jürgen Reich and team), a physical customer center at Aldegreverwall 12, an online service portal, and digital channels — supported by community engagement, sponsorships and a quarterly customer magazine. Generation expansion is pursued through Trianel joint ventures (273 MW+ wind and solar portfolio, including Solarpark Zachow, Theinfeld and the offshore Trianel Windkraftwerk Borkum with a Deutsche Bahn PPA), and a fiber optic partnership with Deutsche GigaNetz extends the company into telecommunications. Multiple majority-owned subsidiaries — AquaFun Soest GmbH, Stadtwerke Soest Energiedienstleistungs GmbH, Netzgesellschaft Ostwestfalen mbH, Wärmecontracting Klinikum Stadt Soest GmbH, Stadtentwässerung Soest AöR, WohnBau Soest GmbH and Immobilienwirtschaft Soest GmbH & Co. KG — formalize the group structure. FY2024 net sales revenue stood at EUR 264 million against EUR 148 million balance sheet total, EUR 51.4 million equity and EUR 9.3 million of capital investment.

Name

Stadtwerke Soest

Legal name

Stadtwerke Soest GmbH

Website

https://stadtwerke-soest.de

Company type

Private

Founded year

2010

Operating status

Operating

Headcount range

11–50 employees

Short description

Stadtwerke Soest GmbH is a municipal utility in North Rhine-Westphalia, Germany, supplying electricity, gas, water, wastewater, and district heating to 60,000+ residential and business customers in the Soest region through owned networks and renewable generation.

Ownership category

akta.pro rank

Product category

Municipal Utility Services (Energy and Water Supply)

NAICS

Utilities (221), Electric Power Generation, Transmission and Distribution (2211), Water Supply and Irrigation Systems (221310), Steam and Air-Conditioning Supply (221330)

SIC

Sanitary Services (4950), Cogeneration Services & Small Power Producers (4991)

akta.pro primary industry

Energy, Utilities & Sustainability Management (BPABAAAF)

akta.pro secondary industry

Chillers, Boilers & Central Plant Operations (BPABACAG)

Keywords

• Municipal utility services
• Electricity supply
• Natural gas distribution
• Drinking water supply
• District heating networks

Headquarters

HQ city

Soest

HQ country

Germany

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B and B2C

Offering type

Services

Cost components

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

Revenue model

1. Electricity Supply (Strom): Supply of electricity to residential and business customers including standard tariffs, regionalstrom products, dynamic tariffs, and price-guaranteed products. Revenue from electricity delivery and network fees.
2. Gas Supply (Erdgas): Natural gas supply to customers including standard tariffs and price-guaranteed options. Revenue from gas delivery and network fees.
3. Water Supply (Wasser): Drinking water supply and distribution to residential and business customers in Soest region.
4. Energy Services (Energiedienstleistungen): PV installation, battery storage, wallbox, heating system optimization, and energy consulting services for residential and commercial customers. Includes Mieterstrom solutions for landlords.
5. District Heating (Fernwärme): Supply of district heating to residential units including cold district heating solutions for new developments.
6. E-Mobility Infrastructure: Operation of public EV charging stations and sale/installation of wallboxes for residential and commercial customers.
7. Network Operations: Operation and maintenance of electricity, gas, water, and wastewater networks in Soest region. Includes house connections and network planning services.
8. Fiber Optic (Glasfaser): Fiber optic network deployment and services in cooperation with Deutsche GigaNetz GmbH, offering high-speed internet connections.

Pricing tiers

Go-to-market motion2 records

Distribution channels5 records

Marketing channels7 records

Core offering

Stadtwerke Soest GmbH is a municipal utility that supplies the city of Soest and surrounding region with electricity, natural gas, drinking water, wastewater services and district heating (including cold district heating). It complements these regulated supplies with energy services such as rooftop and ground-mounted photovoltaic installations, battery storage, tenant electricity (Mieterstrom), EV charging and wallbox solutions, fiber-optic internet, and energy consulting/contracting for residential and business customers.

Product overview

Stadtwerke Soest is a municipal utility company providing a comprehensive portfolio of energy and infrastructure services for residential and business customers in Soest, Germany. The core offerings include electricity supply, natural gas and heating, and water/wastewater management. The product portfolio is structured around key strategic areas: (1) Energy Supply - traditional electricity (with regional green power options), natural gas, and district heating; (2) Solar Energy Products - including rooftop solar (Soester Solardach), PV carports, ground-mounted solar (PV-Freiflächen), balcony solar systems (Balkonkraftwerk), and battery storage solutions; (3) E-Mobility - home wallboxes, public charging stations, and CNG vehicle fuel; (4) Digital Infrastructure - fiber optic internet in partnership with Deutsche GigaNetz; and (5) Energy Services - consulting, subsidy program assistance, and Mieterstrom tenant electricity models. Business customers receive customized solutions including photovoltaic installations for commercial properties, heat/cooling concepts, and strategic energy procurement. The company also operates digital customer platforms including an online service portal and customer magazine.

Differentiator

Problem solved

Functional benefit

Brands

• Regionalstrom Soest: Regional green electricity product sourced directly from renewable energy installations in the Soest region
• Soester Solardach
• Mieterstrom
• AquaFun Soest

Products and services

• Strom (Electricity Supply) Electricity supply for residential and business customers in the Soest area, offered via Grundversorgung (default supply), Regionalstrom green tariffs, dynamic tariffs and tariffs with price guarantee.
• Erdgas & Wärme (Natural Gas and Heating) Natural gas supply with multiple tariff options plus district heating (Fernwärme) and innovative cold district heating (Kalte Nahwärme) for residential and business customers.
• Wasser (Water Supply and Wastewater) Drinking water supply for households and businesses plus wastewater management, water analysis and installation services in the Soest region.
• Soester Solardach (Rooftop Solar) End-to-end photovoltaic rooftop installation service for residential and commercial building owners, including planning, construction and maintenance of PV systems.
• PV-Freiflächen (Ground-mounted Solar) Large-scale ground-mounted photovoltaic systems developed for commercial investors and regional energy cooperatives, offering renewable generation at utility scale.
• Stromspeicher (Battery Storage) Battery storage systems paired with photovoltaic installations, allowing households and businesses to store excess solar electricity for use during nights or cloudy periods.
• Mieterstrom (Tenant Electricity) Innovative model enabling landlords to supply tenants with solar electricity generated on-site, bypassing public grid transmission fees and qualifying for the Mieterstromzuschlag tenant-electricity subsidy.
• Wallbox (Home EV Charging) Home EV charging stations (wallboxes) sold and installed for residential and commercial customers to enable convenient electric-vehicle charging at private or business locations.
• E-Ladestationen (Public EV Charging Stations) Public electric vehicle charging infrastructure deployed throughout the city, including fast-charging stations, available to all EV drivers.
• CNG-Mobilität (Compressed Natural Gas Fuel) Compressed natural gas (CNG) supplied as a lower-emission alternative motor fuel for vehicles, supplementing the public mobility offering.
• Glasfaser (Fiber-Optic Internet) High-speed fiber-optic broadband connectivity delivered jointly with Deutsche GigaNetz GmbH, available to residential and business customers across the Soest service territory.
• Energieberatung (Energy Consulting) Professional energy advisory services for residential and business customers covering consumption optimisation, cost reduction and transition to renewable energy solutions.
• Geschäftskundenangebote (Business Customer Energy Solutions) Individually priced energy supply, PV and contracting solutions for commercial, agricultural, industrial and real-estate customers, delivered via a dedicated key-account team.

Quantifiable outcome

• Over 100,000 tonnes CO2 saved annually through 100% green electricity supply since 2010
• +4 more outcomes

Named customers6 records

Segments4 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

13 partnerships are on record, tiered core and minor.

• Stadt SoestcoreStrategic or Co-development Partner · 1 January 2026Municipal partnership for various infrastructure and community projects including joint initiatives for sustainability, digitalization, and urban development.
• Trianel Erneuerbare Energien GmbH & Co. KG (TEE)coreStrategic or Co-development Partner · 1 January 2023Strategic partnership for joint development and investment in renewable energy projects (solar and wind) across Germany. Stadtwerke Soest participates in TEE portfolio of approximately 273 MW combined wind and solar capacity. Joint solar portfolio currently around 69 MW. Projects include Solarpark Zachow (10 MWPeak, Mecklenburg-Vorpommern) and Solarpark Theinfeld (12 MWPeak, Bavaria).
• Trianel Windkraftwerk Borkum GmbH & Co. KG (TWB I)coreStrategic or Co-development Partner · 1 January 2023Joint investment in offshore wind park Borkum (200 MW capacity). PPA agreement with Deutsche Bahn for supply of 175 million kWh green electricity annually from 50 MW installed capacity.
• Deutsche Bahn (DB Energie GmbH)minorStrategic or Co-development Partner · 1 January 2023Power Purchase Agreement (PPA) for supply of offshore wind power from Trianel Windkraftwerk Borkum. Deutsche Bahn receives approximately 175 million kWh annually of green electricity, contributing to their goal of 100% renewable energy in rail power mix by 2038.
• Erneuerbare-Energie-Genossenschaft Hellweg-Sauerland (EEG-Hellweg-Sauerland)minorStrategic or Co-development Partner · 1 January 2023Partnership with renewable energy cooperative for citizen participation in energy transition. Stadtwerke Soest provides premises and information about PV roof installations. First project involves PV systems on roofs in the region.
• Tilia GmbHminorImplementation/ SI/ Consulting Partner · 1 January 2023External consultant for feasibility studies on district heating networks, including 'Wärmeinsel' project at Paradieser Weg and 'Kalte Nahwärme' in new Soester Norden.
• GEOBIT Energiesysteme GmbHminorImplementation/ SI/ Consulting Partner · 1 January 2023External consultant accompanying feasibility studies for sustainable heating concepts in Soest.
• Deutsche GigaNetz GmbHcoreStrategic or Co-development Partner · 1 January 2022Cooperation agreement for fiber optic (Glasfaser) network expansion in Soest and all districts. Deutsche GigaNetz handles network construction while Stadtwerke serves as local sales partner offering fiber connections to customers.
• bne (Bundesverband Neue Energiewirtschaft) - 'gute Planung' initiativeminorStrategic or Co-development Partner · 1 January 2022Adherence to bne 'gute Planung' self-commitment for solar project development, ensuring ecological benefits including biodiversity corridors, flower strips, and hedgerows.
• Handelsverband NRWminorGTM or Marketing PartnerPartner in 'PV im Gewerbe' (PV in Commerce) initiative promoting solar energy adoption in commercial buildings across NRW.
• Kompetenznetz Logistik.NRWminorGTM or Marketing PartnerPartner in 'PV im Gewerbe' initiative for logistics sector.
• Verband der Verkehrswirtschaft und LogistikminorGTM or Marketing PartnerPartner in 'PV im Gewerbe' initiative for transport and logistics sector.
• Volksbank Hellweg eGminorGTM or Marketing PartnerCo-sponsor of Klimaschutzpreis Soest award and supporter of various regional initiatives including Osthofentor 500th anniversary celebrations.

Scale indicators18 records

Recent moves6 records

Expansion highlights6 records

Direct peers

• Stadtwerke Paderborn GmbH: Municipal utility in Paderborn, NRW. Provides comparable multi-utility services (electricity, gas, water, heating, fiber) with similar customer scale and municipal ownership model, operating in the same regulatory environment.
• RheinEnergie AG: Large municipal utility in Cologne region. Provides electricity, gas, water, heating, fiber, and EV charging services with similar municipal ownership and multi-utility structure as Stadtwerke Soest, though at significantly larger scale.
• Stadtwerke Münster GmbH: Municipal utility in Münster, NRW. Comparable multi-utility operations including electricity, gas, water, district heating, public transport, and fiber optic services under the same regulatory and ownership framework as Stadtwerke Soest.
• Stadtwerke Bielefeld GmbH: Municipal utility in Bielefeld, NRW. Comparable mid-sized multi-utility with electricity, gas, water, district heating, and broadband services under similar municipal ownership structure and regional German market context.
• Westfalen Weser Energie GmbH & Co. KG: Regional energy network operator and supplier in NRW. Comparable municipal multi-utility with focus on network operations, energy supply, and renewable energy participation in the same regional market as Stadtwerke Soest.
• Stadtwerke Hamm GmbH: Neighboring municipal utility in Hamm, NRW. Provides electricity, gas, water, heating, and fiber optic services to a similar regional customer base with comparable scale and municipal ownership structure, making it a directly comparable German Stadtwerke peer.

Broad incumbents

• E.ON SE: Major European energy company with extensive network and supply operations across Germany. Provides comparable electricity, gas, and heating services but at vastly larger scale with international footprint and is one of the largest players in German energy market.
• EnBW Energie Baden-Württemberg AG: One of Germany's largest energy companies serving Baden-Württemberg. Offers electricity, gas, water, district heating, and renewable energy services. Provides broader market context but operates at much larger scale with different geographic focus.
• EWE AG: Large regional energy and telecommunications company serving northwest Germany. Offers electricity, gas, water, fiber, and heating services with similar product portfolio to Stadtwerke Soest but at significantly larger scale and broader geographic footprint.

Others

• Trianel GmbH: Strategic partner and joint venture partner of Stadtwerke Soest. Municipal utility alliance and energy trading company pooling municipal utility interests in renewable energy, procurement, and trading across Germany.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat6 records

Key risks5 records

Key highlights7 records

Customer concentration

• Xtwitter.com/stadtwerkesoest
• YouTubeyoutube.com/channel/stadtwerkesoest
• Facebookfacebook.com/profile.php
• LinkedInlinkedin.com/company/stadtwerke-soest
• Instagraminstagram.com/stadtwerkesoest

Revenue estimate

Valuation estimate

Number of profiles

Profiles8 records

Subsidiaries7 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 Soest