Stadtwerke Garbsen Gmbh

What Stadtwerke Garbsen Gmbh does

Stadtwerke Garbsen GmbH is a municipal utility (Stadtwerk) headquartered in Garbsen, Lower Saxony, Germany, that has supplied electricity, natural gas, and district heating to Garbsen and surrounding districts since 1995. The company serves approximately 35,000 residential and commercial customers through a multi-brand product portfolio comprising basic supply tariffs (SWG-basisStrom, SWG-basisGas), discounted online sub-brands (SWG-onlineStrom, SWG-onlineGas), certified green and economy tariffs (SWG-grünStrom, SWG-ecoStrom, SWG-ecoGas), and specialized heat pump and storage heating tariffs. Revenue is predominantly recurring, driven by consumption-based energy sales with published rates per kWh plus base and metering fees.

The company's core operating technology is the Schleupen CS/IT ERP system for billing and customer management, supplemented by a self-service online portal and a physical customer center. It is expanding into integrated smart home energy management via the HomePulse package (PV + heat pump + storage + EV charging) controlled by the HomePulse Connect app, compatible with over 500 devices and offering dynamic electricity tariffs in partnership with purpur-energy.de. Adjacent infrastructure includes FTTH broadband rollout across Garbsen districts, district heating via two combined heat and power plants (BHKW Garbsen-Mitte and Berenbostel), and a Smart City IoT portfolio (bee scale, soil moisture, CO2 sensors) deployed through the Diginauten e.V. association.

The business is owned 74.9% by the City of Garbsen and 25.1% by enercity AG (Hannover), following a June 2025 share consolidation that replaced Avacon. Wholly-owned subsidiaries include Stromversorgung Stadtwerke Garbsen GmbH & Co. (SVG), Gasversorgung Garbsen GmbH (GVG), and Wärmeversorgung Garbsen GmbH (WVG); the company is exiting its 50% LeineNetz GmbH joint venture with network operations transferring to enercity Netz GmbH from 2026 (electricity) and 2028 (gas). FY2023 revenue was approximately €77.5M from energy sales (€36.9M electricity, €36.5M gas, €4.1M heating) plus network lease income; net retained earnings were €3.7M.

Name

Stadtwerke Garbsen Gmbh

Legal name

Stadtwerke Garbsen GmbH

Website

https://stadtwerke-garbsen.de

Company type

Private

Founded year

1995

Operating status

Operating

Headcount range

11–50 employees

Short description

Stadtwerke Garbsen GmbH is a German municipal utility supplying electricity, natural gas, and district heating to approximately 35,000 residential and commercial customers in Garbsen and surrounding Lower Saxony districts since 1995.

Ownership category

akta.pro rank

Product category

Regional Municipal Energy Utility

NAICS

Steam and Air-Conditioning Supply (221330), Electric Power Generation, Transmission and Distribution (2211), Automatic Environmental Control Manufacturing for Residential, Commercial, and Appliance Use (334512)

SIC

Cogeneration Services & Small Power Producers (4991), Auto Controls For Regulating Residential & Comml Environments (3822), Air-Cond & Warm Air Heatg Equip & Comm & Indl Refrig Equip (3585)

akta.pro primary industry

Microgrid, DER & Building Electrification Energy Controls (Solar/Storage/EV Load Orchestration) (BPABAGAJ)

akta.pro secondary industries

Distributed Storage (Behind-the-Meter Batteries) (EUAMAJAE), EV Charging as DER (Managed Charging, V2G/V2B) (EUAMAJAL), Residential DER Aggregation & VPPs (Solar+Storage, Smart Home, Community) (EUAFAHAA), Heat Pump & Smart HVAC Controller Integration (HSAOANAD), Microgrids & Energy Management Controllers (Campus/Community/Industrial) (EUADAPAE)

Keywords

• Municipal utility services
• Regional energy supply
• District heating services
• Smart home energy management
• Fiber broadband network

Headquarters

HQ city

Garbsen

HQ country

Germany

HQ region

Europe

Offices3 records

Markets served

GTM type

B2C

Offering type

Services

Cost components

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

Revenue model

1. Electricity Sales (Stromverkauf): Sale of electricity to residential and commercial customers across multiple tariff products including SWG-basisStrom (basic supply), SWG-onlineStrom (online discount), SWG-ecoStrom, SWG-grünStrom (green certified), SWG-heizStrom/schaltStrom (storage heating), and SWG-WärmepumpenStrom (heat pump tariffs). Revenue of €36.9 million in 2023 (excluding electricity tax). Volume of 112.9 million kWh in 2023. Revenue is primarily recurring based on consumption, supplemented by base fees and meter charges.
2. Gas Sales (Gasverkauf): Sale of natural gas to residential and commercial customers via SWG-basisGas, SWG-onlineGas, and SWG-ecoGas tariffs. Revenue of €36.5 million in 2023 (excluding natural gas tax). Volume of 265.8 million kWh in 2023. Commercial customers with consumption above 500,000 kWh/year receive individual offers.
3. District Heating (Wärmeverkauf): Sale of district heating from BHKW (combined heat and power plant) Garbsen-Mitte and Berenbostel. Heat sales of 14.7 million kWh in 2023 generating €4.1 million in revenue. Combined heat and power electricity generation of 1.0 million kWh generating €0.2 million in revenue.
4. HomePulse Smart Home Energy Systems: Sale of integrated smart home energy management packages combining solar panels, heat pumps, storage, and smart control. Complete package starting from €21,000, with bundled HomePulse Connect control system (€540 value) included. Revenue is one-time hardware/installation plus ongoing smart management service fees. Also includes individual product sales of PV systems and wallboxes.
5. Broadband/FTTH Network Services: Deployment and operation of FTTH gigabit fiber networks across Garbsen districts. Revenue derived from infrastructure connection fees and ongoing service charges for broadband access. Part of strategic diversification beyond core energy business.
6. Network Lease Income (SVG and GVG): Stromversorgung Stadtwerke Garbsen GmbH & Co. (SVG) and Gasversorgung Garbsen GmbH (GVG) generate lease income from network assets. SVG earned €2.3 million in 2023 (€2.1 million in 2022) and GVG earned €1.5 million in 2023 (€1.6 million in 2022) from network lease arrangements.

Pricing tiers

Go-to-market motion2 records

Distribution channels4 records

Marketing channels8 records

Core offering

Stadtwerke Garbsen GmbH is a municipal energy utility that supplies households and businesses in and around Garbsen with electricity, natural gas, and district heating under multiple branded tariffs (basic, online, eco, green, off-peak, heat-pump, and dynamic), and sells related hardware including the HomePulse smart-home energy package, EV wallboxes, photovoltaic systems, and heat pumps. It also operates an FTTH broadband network and a smart-city IoT sensor infrastructure (e.g., the Bienenwaage beehive scale) on top of a Schleupen CS/IT back-end.

Product overview

Stadtwerke Garbsen GmbH is a regional municipal energy utility (Stadtwerk) supplying electricity, natural gas, and district heating to Garbsen and surrounding areas since 1995. Its product portfolio is organized as a multi-brand energy supply platform comprising standard basic supply tariffs (SWG-basisStrom, SWG-basisGas), discounted online-only sub-brands (SWG-onlineStrom, SWG-onlineGas), certified green/economy sub-brands (SWG-ecoStrom, SWG-grünStrom, SWG-ecoGas), and specialized tariffs for heat pumps and off-peak electric heating. In addition to energy supply, the company offers technology products including HomePulse — an all-in-one modular smart home energy management system combining PV solar, heat pump, battery storage, EV charging, and dynamic tariffs, controlled via the HomePulse Connect app. Supporting hardware includes Wallbox EV chargers and PV systems. The company is also expanding into fiber-to-the-home (FTTH) broadband and smart city IoT solutions such as the Bienenwaage prototype beehive monitoring scale. The Energielevel podcast serves as a consumer education and brand engagement channel.

Differentiator

Problem solved

Functional benefit

Brands

• HomePulse: All-in-one package for smart home energy management combining solar, heat pump, storage, EV charging, and dynamic electricity tariffs
• HomePulse Connect
• Mr. Energy
• Energielevel

Products and services

• SWG-basisStrom

Quantifiable outcome

• Up to 91% self-consumption rate and up to 98% energy independence for HomePulse customers
• +4 more outcomes

Named customers1 record

Segments3 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration1 record

AI capability7 records

Feature6 records

Partnerships

Nine partnerships are on record, tiered core and minor.

• enercity AGcoreStrategic or Co-development Partner · 27 June 2025Enercity AG, based in Hannover, acquired 5.1% of Stadtwerke Garbsen shares from Avacon in June 2025, increasing its stake to a blocking minority of 25.1%. Together with the City of Garbsen (74.9%), enercity and Stadtwerke are developing joint projects including geothermal heating, renewable energy generation and storage, and smart energy services for private customers. Enercity will take over electricity grid operations in Garbsen from January 1, 2026 and gas grid operations from January 1, 2028. Enercity CEO Marc Hansmann sits on the Stadtwerke Garbsen supervisory board as deputy chairman.
• City of Garbsen (Stadt Garbsen)coreStrategic or Co-development Partner · 27 June 2025The City of Garbsen is the majority shareholder (74.9%) in Stadtwerke Garbsen GmbH following the June 2025 acquisition of Avacon's remaining 19.8% stake. Mayor Claudio Provenzano and city council approved the purchase. The city receives taxes, levies, and profits from the utility, which also sponsors local sports, cultural, and social initiatives. The city and Stadtwerke jointly partner with enercity for future energy infrastructure development.
• Diginauten e.V.coreStrategic or Co-development Partner · 19 August 2024Diginauten e.V. is a smart city association founded by citizens, associations, companies, and educational institutions in Garbsen, with Stadtwerke Garbsen as a founding member. CEO Daniel Wolter serves as chairman. The association drives digitalization and smart city projects including IoT sensor deployments (bee scales, soil moisture sensors, CO₂ monitoring at schools). It serves as the vehicle for collaborative smart city innovation between the utility, municipality, and community.
• enercity AG (Kooperation)coreStrategic or Co-development Partner · 19 August 2024The City of Garbsen, Stadtwerke Garbsen, and enercity entered a cooperation agreement (August 2024) titled 'Gemeinsam in die Zukunft' to jointly advance energy supply in Garbsen. The goal is to make the city's network infrastructure future-proof and sustainably support Stadtwerke Garbsen, focusing on renewable heating concepts (e.g., geothermal), large-scale renewable generation and storage, and smart energy services.
• Spax (Rafael Szulc-Vollmann)minorGTM or Marketing Partner · 1 July 2023Hannover rapper and moderator Rafael Szulc-Vollmann (aka Spax) co-hosts the 'Energielevel' podcast with CEO Daniel Wolter. Spax brings consumer-perspective questioning to energy topics, targeting younger audiences and providing accessible energy education. Episodes are published weekly on Spotify, Deezer, Castbox, Apple Podcasts, Amazon Music, and Google Podcasts.
• Daniel Dietrich (Hobby Beekeeper)minorStrategic or Co-development Partner · 1 January 2022Daniel Dietrich, a hobby beekeeper and chairman of the Imkerverein Osterwald, collaborated with Stadtwerke Garbsen and the Johannes-Kepler-Gymnasium to deploy a smart bee scale (Bienenwaage) at the school apiary. The IoT project, initiated by Dietrich and developed by the SWG IoT team, monitors bee colony weight and temperature every 15 minutes. Dietrich also serves as co-supervisor of the school's research class.
• MADSACK Medienagentur GmbH & Co. KGminorImplementation/ SI/ Consulting Partner · 1 January 2021MADSACK Medienagentur GmbH & Co. KG, based in Hannover, is responsible for the conception, design, programming, and ongoing maintenance of the Stadtwerke Garbsen website (per the Impressum).
• LeineNetz GmbHcoreStrategic or Co-development Partner · 1 January 2016LeineNetz GmbH is a joint venture (50%/50%) between Stadtwerke Garbsen and Stadtnetze Neustadt a. Rbge., established January 1, 2016. It operates as meter operator, energy data manager, grid economy, and IT service provider for electricity and gas networks in Garbsen and Neustadt. Stadtwerke and Stadtnetze Neustadt reached an amicable out-of-court settlement in June 2025 regarding SWG's exit from LeineNetz. The company currently operates grid infrastructure under a lease model (Pachtmodell) with SVG and GVG.
• Schleupen SEcoreTechnology or Integration · 1 January 1990Schleupen SE, based in Moers (Lower Rhine), has been the IT/software partner of Stadtwerke Garbsen for 35 years (since approximately 1990). The company provides the Schleupen CS and CS.IT energy billing and customer management system serving approximately 35,000 electricity, gas, and heating customers. Stadtwerke Garbsen also advertises job openings specifically for Schleupen CS system administration specialists. The partnership continues with mutual commitment to further joint stages.

Scale indicators11 records

Recent moves8 records

Expansion highlights7 records

Direct peers

• Lichtblick SE: German renewable electricity supplier and pioneer of residential Virtual Power Plant aggregation (Schwarm). Comparable to Stadtwerke Garbsen's combination of green electricity supply and emerging residential DER-aggregation ambitions via dynamic tariffs and HomePulse.
• EWE AG: Northern German multi-utility (energy, telecommunications via EWE TEL, Smart Home). Comparable as a regional multi-utility bundling electricity, gas, broadband, and Smart Home services for residential customers — a structural analogue to SWG's evolving portfolio.
• Mainova AG: Frankfurt-based municipal utility (Stadtwerke Frankfurt) supplying electricity, gas, district heating, and broadband in a comparable mid-sized German city portfolio. Closely comparable municipal-utility operating model with similar regulated and competitive revenue mix.
• 1Komma5°: Fast-scaling German residential energy-transition installer offering integrated PV, heat pump, storage, EV charging, and dynamic tariffs — directly competitive with Stadtwerke Garbsen's HomePulse bundle but operating at national scale with significant venture capital backing.
• Enpal GmbH: Germany's largest residential solar leasing company, now also bundling heat pumps, batteries, and EV chargers. Competes head-to-head with HomePulse for the same homeowner customer segment with a financed, no-upfront-cost model.
• enercity AG (Stadtwerke Hannover): Hannover-based municipal utility and 25.1% blocking-minority shareholder of Stadtwerke Garbsen. Operates the same municipal-utility model in the same metropolitan region, with electricity, gas, district heating, broadband, e-mobility, and Smart City services — making it both the closest strategic partner and the most directly comparable peer.

Emerging players

• tado° GmbH: Munich-based smart-home energy management company offering thermostats and app-based heating/energy optimization. Comparable as a software-driven overlay on residential heating and energy consumption — a model SWG replicates with HomePulse Connect.
• Viessmann Climate Solutions: German heat-pump and HVAC manufacturer whose products are bundled into HomePulse-style offerings. Comparable as a key technology supplier into the same residential heat-pump-plus-smart-control proposition that SWG assembles.

Broad incumbents

• Stadtwerke München GmbH: One of Germany's largest municipal utilities, providing electricity, gas, district heating, FTTH broadband, and mobility in Munich. Relevant benchmark for how a mature Stadtwerk can scale multi-utility and Smart City offerings beyond a single municipality.
• E.ON SE: Germany's largest energy company with a broad retail, network, and Smart Home (E.ON Home) portfolio. Relevant as the broad incumbent against whose offerings SWG's customer base would compare, especially for residential energy management and dynamic tariffs.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks7 records

Key highlights7 records

Customer concentration

• YouTubeyoutube.com/@stadtwerkegarbsen
• Facebookfacebook.com/stadtwerkegarbsen
• Instagraminstagram.com/stadtwerkegarbsen
• LinkedInlinkedin.com/company/stadtwerke-garbsen-gmbh

Compliance5 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles15 records

Subsidiaries4 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 Garbsen Gmbh