Stadtwerke Ahrensburg GmbH

What Stadtwerke Ahrensburg GmbH does

Stadtwerke Ahrensburg GmbH is a municipally owned (Stadtwerke) multi-utility company headquartered in Ahrensburg, Schleswig-Holstein, Germany, serving residential (Privatkunden) and business (Geschäftskunden) customers in the Ahrensburg region with electricity, natural gas, fiber-to-the-home (FTTH) internet, district heating (Fernwärme), EV charging, and complementary energy services. The electricity portfolio delivers 100% renewable energy from wind, solar, and water across all residential and commercial tariffs, complemented by sub-products including dynamic electricity pricing (Dynamischer Strom), heat-pump electricity (Wärmepumpenstrom), and PV plus battery storage solutions. Fiber offerings span symmetric Home 100/400/600/1000 Mbps residential tariffs and equivalent Business tiers, with router (FRITZ!Box) bundling and optional IPTV, distributed via the company's own network and through a cooperation with Vodafone and NEUE LÜBECKER covering 187 apartment buildings and 1,424 residential units. Revenue mechanics are predominantly subscription-recurring across commodity supply (electricity, gas, district heating) and connectivity (fiber), supplemented by one-time fees for energy certificates (Energieausweise at €112-€190) and professional services for individualized renovation roadmaps (iSFP, net €845 after BAFA subsidy), plus hardware revenue from PV systems, battery storage, and wallboxes. The company also operates the Badlantic swimming pool and sauna via a jointly controlled subsidiary (Badlantic Betriebsgesellschaft mbH) as a customer-loyalty asset, and runs advisory channels (webinars, mobile customer office, customer center at Lohe 1) under managing director Elmar Burgard with supervisory board chair Eckart Boege.

Name

Stadtwerke Ahrensburg GmbH

Legal name

Stadtwerke Ahrensburg GmbH

Website

https://stadtwerke-ahrensburg.de

Company type

Private

Operating status

Operating

Headcount range

11–50 employees

Short description

Stadtwerke Ahrensburg GmbH is a municipally owned multi-utility providing 100% green electricity, natural gas, FTTH fiber internet, district heating, and EV charging to residential and business customers in the Ahrensburg region of Schleswig-Holstein, Germany.

Ownership category

akta.pro rank

Product category

Municipal Utility Services

NAICS

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

SIC

Services-Facilities Support Management Services (8744)

akta.pro primary industry

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

akta.pro secondary industries

DER Financing, Contracting & Program Management (PPAs, Shared Savings, Performance) (EUAFAHAL), Demand Response & Load Flexibility Services (EUAMAJAF)

Keywords

• Municipal utility services
• Fiber optic internet
• Green electricity supply
• District heating network
• Natural gas distribution

Headquarters

HQ city

Ahrensburg

HQ country

Germany

HQ region

Europe

Offices2 records

Markets served

GTM type

B2B and B2C

Offering type

Services

Cost components

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

Revenue model

1. Electricity Supply (Strom): Recurring subscription revenue from electricity supply to residential and business customers. All tariffs deliver 100% green electricity from renewable sources. Includes fixed Grundpreis (base fee) plus variable Arbeitspreis (usage-based rate per kWh). Customers receive price adjustment notices for changes in taxes, levies, and grid fees.
2. Natural Gas Supply (Erdgas): Recurring subscription revenue from natural gas supply for heating and cooking. Pricing includes CO2 certificate costs passed through to customers. Subject to price adjustments driven by CO2 pricing (from 2026: market-based auction at 55-65 EUR/t with up to 70 EUR/t for additional purchases) and rising grid fees.
3. Fiber Optic Internet & TV (Glasfaser): Monthly subscription revenue from fiber optic internet tariffs (starting at 29 EUR/month) and optional TV services. Includes router rental (FRITZ!Box). Symmetric bandwidth tiers: Home 100, 400, 600 (with 12-month contract option), and 1000 Mbps. Business tariffs also available.
4. District Heating (Fernwärme) & Heat Pumps: Revenue from district heating network connections and heat pump electricity tariffs. Heat pump tariffs are specially structured for heat pump owners with flexible load management compliant with §14a EnWG.
5. EV Charging Infrastructure (E-Mobilität): Revenue from public EV charging stations for electric vehicles across Ahrensburg, at home, and at the workplace. Also includes Wallbox sales.
6. Energy Certificates (Energieausweise): One-time fee revenue from issuing energy performance certificates: Verbrauchsausweis (consumption-based) at 112 EUR incl. VAT, Bedarfsausweis (demand-based) at 190 EUR incl. VAT. Includes DIBt registration.
7. Individual Sanitization Roadmap (iSFP): Revenue from creating individualized renovation roadmaps (iSFP) priced at 1,495 EUR per residential unit (1-2 units), reduced to 845 EUR after BAFA subsidy of up to 650 EUR. The iSFP qualifies customers for additional KfW and BAFA subsidies including a 5% bonus on subsequent renovation measures.
8. PV & Storage System Sales: Revenue from sale and installation of photovoltaic (PV) systems and battery storage solutions for residential customers.

Pricing tiers

Go-to-market motion2 records

Distribution channels6 records

Marketing channels10 records

Core offering

Stadtwerke Ahrensburg GmbH is a municipal multi-utility provider supplying the city of Ahrensburg with 100% renewable electricity (Ökostrom from wind, solar, and water), natural gas, fiber-to-the-home internet (Glasfaser), district heating (Fernwärme), heat pump solutions, photovoltaic and battery storage systems, and EV charging infrastructure. The company also issues energy performance certificates, creates individualized renovation roadmaps (iSFP), and operates the Badlantic swimming pool as a customer loyalty asset.

Product overview

Stadtwerke Ahrensburg GmbH is a regional multi-utility company offering an integrated energy and telecommunications portfolio. The core offering comprises electricity (Ökostrom with Ökostrom, Dynamischer Strom, and Wärmepumpenstrom tariffs), natural gas (Erdgas), and fiber-to-the-home internet (Glasfaser with Home 100/400/600/1000 and Business tariffs). Supporting services include district heating (Fernwärme), heat pump solutions, PV & battery storage, energy certificates, renovation roadmaps, oil tank disposal, and public/home EV charging infrastructure. The company operates its own fiber network and provides a customer portal for centralized contract management.

Differentiator

Problem solved

Functional benefit

Products and services

• Ökostrom (Green Electricity) 100% renewable electricity supply from wind, solar, and water sources for residential customers, with fair transparent pricing and no hidden costs. Includes fixed Grundpreis (base fee) and variable Arbeitspreis (per kWh).
• Dynamischer Strom (Dynamic Electricity) Variable electricity tariff with market-based pricing that fluctuates with energy exchange conditions, enabling customers to benefit from price swings.
• Wärmepumpenstrom (Heat Pump Electricity) Specialized electricity tariff optimized for heat pump operation, with grid-friendly load management compliant with §14a EnWG.
• Erdgas (Natural Gas) Natural gas supply for heating and cooking from a regional utility, with competitive pricing and CO2 cost pass-through.
• Glasfaser Internet (Fiber-to-the-Home) Fiber-to-the-home (FTTH) internet with symmetrical bandwidth speeds (100 Mbps to 1 Gbps) for residential and business customers. Includes FRITZ!Box router. Starting at €29/month.
• Glasfaser TV IPTV service delivered over the fiber network, providing television programming as part of the fiber product bundle.
• Fernwärme (District Heating) District heating supply that efficiently heats entire city quarters through near-surface geothermal and local heat networks, including the Reeshoop area.
• Wärmepumpenlösungen (Heat Pump Solutions) Comprehensive heat pump solutions including consulting, installation planning support, and optimized heat pump electricity tariffs integrated with PV and battery systems.
• PV & Speicher (Solar and Battery Storage) Photovoltaic systems with battery storage solutions for residential customers, including installation planning and integration with heat pump solutions.
• Energieausweise (Energy Performance Certificates) Energy performance certificates for buildings (Verbrauchsausweis at €112 incl. VAT; Bedarfsausweis at €190 incl. VAT) in cooperation with delta GmbH. Includes DIBt registration.
• Sanierungsfahrplan (Individual Renovation Roadmap / iSFP) Individualized renovation roadmaps (iSFP) helping homeowners plan step-by-step building energy optimization. Base price €1,495 per residential unit, reduced to €845 after BAFA subsidy of up to €650.
• Öltankentsorgung (Oil Tank Disposal) Professional oil tank disposal services for homeowners transitioning away from oil heating.
• Ladesäulen (Public EV Charging) Public electric vehicle charging stations across Ahrensburg, enabling emission-free charging for electric cars.
• Wallboxen (Home EV Wallbox) Home and workplace charging solutions (wallboxes) for electric vehicles sold as part of the e-mobility portfolio.
• Glasfaser Hausanschluss (Fiber House Connection) Fiber optic house connection service installing fiber cables from the distribution point to residential buildings.

Quantifiable outcome

• All electricity supplied is 100% renewable (wind, solar, water)

Named customers2 records

Segments2 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature6 records

Partnerships

Four partnerships are on record, tiered core and minor.

• VodafonecoreStrategic or Co-development Partner · 17 February 2026Strategic cooperation between Vodafone, Stadtwerke Ahrensburg, and NEUE LÜBECKER to jointly expand fiber optic infrastructure (FTTH) in Ahrensburg. The partnership covers 187 apartment buildings with 1,424 residential units (Wohneinheiten). Vodafone contributes its existing infrastructure and market presence, while Stadtwerke Ahrensburg provides its local fiber network and customer relationships, and NEUE LÜBECKER contributes additional regional infrastructure capacity.
• NEUE LÜBECKERcoreStrategic or Co-development Partner · 17 February 2026Strategic cooperation between Vodafone, Stadtwerke Ahrensburg, and NEUE LÜBECKER to jointly expand fiber optic infrastructure (FTTH) in Ahrensburg. The partnership covers 187 apartment buildings with 1,424 residential units (Wohneinheiten). NEUE LÜBECKER provides additional regional fiber infrastructure capacity and expertise, complementing the local network assets of Stadtwerke Ahrensburg.
• e-werk Sachsenwald GmbHminorStrategic or Co-development Partnere-werk Sachsenwald GmbH conducts gas meter replacement operations on behalf of Stadtwerke Ahrensburg. This is a legally mandated meter exchange program that is free for customers. The partnership involves Stadtwerke Ahrensburg outsourcing the operational execution of smart meter rollout to e-werk Sachsenwald, which manages scheduling and customer communication for meter replacements.
• delta GmbH (delta能量咨询)coreImplementation/ SI/ Consulting PartnerStadtwerke Ahrensburg works exclusively with qualified energy advisors and partners including delta GmbH for the issuance of energy certificates (Energieausweise) and the creation of individualized renovation roadmaps (iSFP). Delta GmbH contributes specialized technical expertise in building energy assessment and renovation planning required to issue legally compliant demand-based and consumption-based energy certificates.

Scale indicators2 records

Recent moves5 records

Expansion highlights5 records

Direct peers

• Stadtwerke Norderstedt: Municipal utility serving the neighboring city of Norderstedt in Schleswig-Holstein with electricity, gas, heat, and broadband. Comparable in scale and product mix to Stadtwerke Ahrensburg and operating in an immediately adjacent service area.
• EWE AG: Large regional energy and telecommunications company headquartered in Oldenburg, active across Northern Germany including parts of Schleswig-Holstein. Overlaps in electricity, gas, fiber, and heat-pump offerings, though at materially larger scale.
• Stadtwerke Flensburg GmbH: Municipal multi-utility in Flensburg, northern Schleswig-Holstein, supplying electricity, gas, district heating, and telecommunications. Same German Stadtwerke model with overlapping product portfolio and regional focus.
• Stadtwerke Rostock AG: Municipal utility of the Hanseatic city of Rostock in Mecklenburg-Vorpommern, supplying electricity, gas, heat, and water. Comparable northern-German municipal-utility business model and product mix.
• HanseWirk GmbH: Schleswig-Holstein's largest energy network operator (a subsidiary of E.ON), running distribution grids for electricity, gas, and heat in the same federal state. Comparable network-operator role within shared regional infrastructure.
• Versorgungsbetriebe Bordesholm GmbH: Small municipal utility located near Ahrensburg in Schleswig-Holstein, providing electricity, gas, water, and fiber. Closest size and scope peer; very similar concession-scale municipal utility operating a multi-utility portfolio.
• Hamburger Energiewerke GmbH: Municipal multi-utility of the Free and Hanseatic City of Hamburg, providing electricity, gas, and heat to a metropolitan Hamburg customer base. Same municipal-utility structure with multi-utility portfolio, though at significantly larger scale.
• Stadtwerke Lübeck GmbH: Municipal multi-utility in Lübeck, Schleswig-Holstein, offering electricity, gas, heat, and fiber. Directly comparable as a Stadtwerke in the same federal state, and a partner via NEUE LÜBECKER in the joint FTTH expansion with Stadtwerke Ahrensburg.

Broad incumbents

• Stadtwerke München GmbH (SWM): One of Germany's largest municipal utilities, supplying electricity, gas, district heating, fiber, and public transport in Munich. Shares the multi-utility municipal-utility model but operates at substantially greater scale and within a much larger metropolitan concession.

Emerging players

• Deutsche Glasfaser Wholesale GmbH: Independent fiber-to-the-home provider focused on rural and suburban Germany, active in many of the same regions where municipal utilities are building FTTH. Directly competes on fiber connectivity and overlaps in broadband product positioning.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

• YouTubeyoutube.com/@stadtwerkeahrensburg
• Facebookfacebook.com/stadtwerkeahrensburg
• LinkedInlinkedin.com/company/stadtwerke-ahrensburg-gmbh
• Instagraminstagram.com/stadtwerke_ahrensburg

Compliance3 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles2 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 Stadtwerke Ahrensburg GmbH