What Stadtwerke Walldorf does

Stadtwerke Walldorf GmbH & Co. KG is a municipally owned multi-utility headquartered in Walldorf, Germany, operating continuously since 1996. It supplies electricity, natural gas, and drinking water to approximately 16,500 residents and businesses across Walldorf and surrounding areas (including a drinking-water operating contract for the municipality of Dielheim), and holds the statutory roles of Grundversorger (default supplier) and grundzuständiger Messstellenbetreiber (gMSB) in its service area. The company earned simultaneous TSM certification from DVGW (gas/water) and VDE (electricity) in 2025 for its technical safety management.

Beyond core utility operations, Stadtwerke Walldorf owns and operates a fiber-to-the-home network with 500+ buildings connected (extended into Wiesloch), a proprietary data center (Rechenzentrum) offering server housing via subsidiary DHV e-net GmbH, and the AQWA Bäder- und Saunapark leisure facility. It co-owns a 32.5 MW wind farm in Suckow, Mecklenburg with other southwestern German municipal utilities, and operates a 1,080 kWp Solar Park Walldorf plus ~200 kWp of rooftop PV on public buildings. Recent additions include residential photovoltaic installation services, a dynamic Strom+ Dynamic tariff (EPEX SPOT-tied, requiring smart meters), the Erdgas27 multi-year fixed-price tariff, the eMotion Plus EV-charging partnership with MVV Energie AG, and a THG-quota submission service for EV owners via Carbonify.

Revenue is generated primarily through regulated and competitive consumption-based tariffs for electricity and gas, regulated network usage charges (Netzentgelte) for distribution-network operation, water-supply fees (e.g., €5.60/m³ in Dielheim from January 2026), fiber connection fees plus recurring broadband revenue via partner ISPs, data-center rack rentals, one-time PV installation sales, and AQWA entry/season-ticket fees. The company distributes through two physical offices, a self-service Kundenportal, a digital Netzanschlussportal, and a dedicated commercial account manager, with the new administrative headquarters at Heinrich-Hertz-Straße 9 opening 8 July 2026 alongside retained network operations at Altrottstraße 39. Leadership transitioned in March 2026 with Isabelle John joining Reinhard Groß as co-Managing Director.

Name

Stadtwerke Walldorf

Legal name

Stadtwerke Walldorf GmbH & Co. KG

Website

https://stadtwerke-walldorf.de

Company type

Private

Founded year

1996

Operating status

Operating

Headcount range

51–100 employees

Short description

Stadtwerke Walldorf is a municipally owned German multi-utility supplying electricity, gas, water, fiber broadband, data-center services, and PV installations to roughly 16,500 residential and commercial customers in Walldorf and surrounding municipalities, while operating the AQWA leisure park.

Ownership category

akta.pro rank

Product category

Municipal Utility Services

NAICS

Utilities (221), Electric Power Generation, Transmission and Distribution (2211), Water, Sewage and Other Systems (2213)

SIC

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

akta.pro primary industry

Retail Supply + DER/Virtual Power Plant Bundles (Solar, Storage, DR) (EUAGABAI)

akta.pro secondary industry

DER Aggregation & Virtual Power Plants (VPPs) (EUAMAJAC)

Keywords

• Municipal utility services
• Electricity supply
• Natural gas distribution
• Drinking water supply
• Fiber broadband services

Headquarters

HQ city

Walldorf

HQ country

Germany

HQ region

Europe

Offices6 records

Markets served

GTM type

B2B and B2C

Offering type

Services

Cost components

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

Revenue model

1. Electricity Sales: Sale of electricity to residential and commercial customers under multiple tariff structures (Strom Classic, Strom+, Natur+, dynamic tariffs, Regio variants). Revenue is generated through recurring consumption-based charges (ct/kWh) plus annual base fees (Grundpreis). The company is the default electricity supplier (Grundversorger) for Walldorf.
2. Natural Gas Sales: Sale of natural gas to residential and commercial customers under tariff plans (Erdgas Classic, Erdgas+, Erdgas+ Regio, Erdgas27). Revenue from consumption-based charges plus annual base fees. Optional biogas upgrade.
3. Water Supply: Potable water distribution to Walldorf residents and to Dielheim municipality under a separate operating contract. Revenue from water consumption fees (€ per cubic meter).
4. Network Operation (Strom, Gas, Wasser): Operation of regulated electricity, gas, and water distribution networks in Walldorf. Revenue derived from regulated network usage charges (Netzentgelte) set by regulators, covering network operation and maintenance costs.
5. Broadband / Fiber (Glasfaser): Fiber-to-the-home connections and associated broadband services. Revenue includes one-time connection fees and recurring broadband subscriptions via partner ISPs (DBN, KurpfalzTEL, PfalzKom, Heidelberg iT).
6. Photovoltaic (PV) Systems Sales & Service: Sale and installation of photovoltaic systems to residential customers, including drone-based roof surveys, customized offers, and after-sales service. Includes a promotional discount of up to €750 (3% of offer value) for contracts signed by Feb 28, 2026.
7. AQWA Bäder- und Saunapark: Operation of the AQWA swimming pool and sauna park. Revenue from entry fees, season tickets, multi-visit cards. Discounts (25%) offered to existing Stadtwerke electricity and gas customers.
8. Data Center / Server Housing: Rental of rack space, power, and cooling in the company's own data center. Revenue from monthly infrastructure charges, suitable for SMEs and regional companies.

Pricing tiers

Go-to-market motion1 record

Distribution channels6 records

Marketing channels7 records

Core offering

Stadtwerke Walldorf is a municipal utility providing electricity, natural gas, and drinking water supply to residential and commercial customers in the Walldorf region under regulated default-supply (Grundversorger) status. Beyond core energy and water services, the company operates a proprietary FTTH fiber-to-the-home network distributing broadband through partner ISPs, runs its own data center offering server housing with direct fiber connectivity, sells and installs photovoltaic systems for residential customers, and operates the AQWA swimming pool and sauna park as a recreational service.

Product overview

Stadtwerke Walldorf is a municipal utility company offering a comprehensive portfolio of energy and infrastructure services. The core offerings include electricity tariffs (Strom Classic, Strom+, Natur+, Strom+ Dynamic with dynamic pricing), natural gas tariffs (Erdgas Classic, Erdgas+, Erdgas27), drinking water supply, and photovoltaic systems. The company operates a fiber optic network for broadband internet, TV, and telephony services, including home connections, data center/server housing, and the free Walldorf-City-Net public WLAN. Additional services include commercial energy solutions for businesses, Smart Meter installation, an online connection portal, a customer portal for contract management, THG quota submission for e-mobility, and the AQWA swimming pool and sauna facility. A subsidiary (DHV e-net GmbH) handles fiber construction and hosting services. The utility serves as the basic supply meter operator for the city area and operates the distribution networks for electricity, gas, water, and heat.

Differentiator

Problem solved

Functional benefit

Products and services

• Strom Classic Default electricity supply tariff for residential and commercial customers with no fixed contract term and 14-day cancellation right, priced at 34.91 ct/kWh gross plus an annual base fee.
• Strom+ 12-month fixed-term electricity tariff with discounted rates relative to the basic tariff, priced at 32.69 ct/kWh gross.
• Natur+ 100% renewable energy electricity tariff that is TÜV-certified, on a 12-month contract at 33.28 ct/kWh gross.
• Strom+ Dynamic Dynamic electricity tariff with prices that follow the EPEX SPOT Day-Ahead market hourly, requiring a Smart Meter installation.
• Wärmepumpentarif Special electricity tariff designed for heat pumps and storage heating systems with reduced off-peak rates.
• Erdgas Classic Default natural gas supply tariff with no contract term and 14-day cancellation, priced at 11.74 ct/kWh gross plus an annual base fee.
• Erdgas+ 12-month fixed-term natural gas tariff with a constant energy price, priced at 10.85 ct/kWh gross plus an annual base fee.
• Erdgas27 Natural gas tariff that locks in a fixed price through end of 2027, providing price security across three winter seasons, with an optional biogas upgrade.
• Trinkwasserversorgung Walldorf Drinking water supply service for Walldorf residents with regularly tested water quality.
• Wasserversorgung Dielheim Drinking water supply and operating management for the municipality of Dielheim under a separate operating contract, including water meter registration for property owners.
• Glasfaser-Hausanschluss Fiber-to-the-home (FTTH) connection enabling high-speed internet, TV, and reliable telephony delivered through partner ISPs over the Stadtwerke-owned fiber network.
• Rechenzentrum / Server Housing Data center colocation / server housing service offering rack space, power, cooling, and direct fiber connectivity, targeted at SMEs and over-regional companies.
• Walldorf-City-Net (WLAN) Free public WiFi hotspots across Walldorf connected to the city's fiber network, available daily from 6 AM to 11 PM.
• PV-Anlagen (Photovoltaik) Photovoltaic system sales and installation service for residential customers, including free drone-based roof surveys, customized offers, installation, and after-sales service.
• Gewerbekunden (Commercial Energy Solutions) Individualized electricity and natural gas solutions for commercial and industrial customers with annual consumption starting at 30,000 kWh, including Ersatzversorgung (default supply) for all voltage levels, served by a dedicated account manager.
• Smart Meter / Intelligentes Messsystem Digital smart electricity meter with communication module enabling quarter-hourly consumption recording, dynamic tariff billing, and remote data transmission per German MsbG requirements.
• AQWA Bäder- und Saunapark Public swimming pool and sauna facility operated by the utility, offering wellness and recreation services with entry fees, season tickets, and multi-visit cards.
• THG-Quote Einreichung Service for electric vehicle owners to submit their annual Treibhausgasminderungsquote (THG quota) through a referral partner and earn a premium for the CO₂ savings of their EV.
• eMotion Plus Tarif Discounted EV charging tariff at all public MVV Energie AG charging stations for existing Stadtwerke electricity or gas customers, accessed via the MVV eMotion app.

Quantifiable outcome

• TSM certification confirms compliance with DVGW (gas/water) and VDE (electricity) technical safety standards across all three infrastructure divisions simultaneously.
• +2 more outcomes

Named customers1 record

Segments4 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Partnerships

Nine partnerships are on record, tiered core and minor.

• DHV e-net GmbHcoreTechnology or IntegrationDHV e-net GmbH, based in Walldorf (Heinrich-Hertz-Straße 13), is a subsidiary providing hosting services for Stadtwerke's website (externes Hosting) and technical execution of fiber-to-the-home connections. On behalf of Stadtwerke, DHV e-net coordinates with customers regarding fiber house connections, installation points, and in-building cabling. Optional hosting services are also offered through DHV e-net.
• MVV Energie AG (Mannheim)minorStrategic or Co-development PartnerPartnership with MVV Energie AG for the 'eMotion Plus' EV charging tariff. Existing Stadtwerke electricity or gas customers can access discounted charging rates at all public MVV charging stations via the MVV eMotion app. The eMotion Plus tariff is marketed jointly and includes a link in the MVV app directing Stadtwerke Walldorf customers to sign up.
• DBN (NGN Telecom GmbH)coreChannel Partner/ Reseller/ DistributorDBN is an ISP offering internet, TV, and telephone services (Triple-Play) to residential customers connected to Stadtwerke's fiber network in Walldorf.
• KurpfalzTEL GmbHcoreChannel Partner/ Reseller/ DistributorISP offering internet, TV, and telephone services over Stadtwerke's fiber network in Walldorf.
• PfalzKom MAnet GmbHminorChannel Partner/ Reseller/ DistributorISP serving commercial (Gewerbekunden) customers with internet, TV, and IP telephony over the Stadtwerke fiber network.
• Heidelberg iTminorChannel Partner/ Reseller/ DistributorIT services provider serving commercial (Gewerbekunden) customers over the Stadtwerke fiber network.
• Other Municipal Utilities (Stadtwerke) from Southwest GermanycoreStrategic or Co-development PartnerJoint project with other municipal utilities from southwestern Germany to operate a wind farm in Suckow, Mecklenburg. 13 wind turbines with 2.5 MW each (32.5 MW total installed capacity). The collaboration enables shared investment in renewable energy infrastructure beyond the local service area.
• CarbonifyminorGTM or Marketing PartnerReferral partnership for THG quota (Treibhausgasminderungsquote) processing. Stadtwerke Walldorf directs EV-owning customers to Carbonify's platform for THG quota submission. Customers may receive a premium for their EV's carbon savings.
• aqwa-walldorf.de (AQWA Bäder- und Saunapark)coreOthersStadtwerke Walldorf operates the AQWA Bäder- und Saunapark as part of its municipal services portfolio. AQWA is promoted as an exclusive benefit to existing Stadtwerke energy customers (25% discount on multi-visit and season tickets), creating cross-selling synergy.

Scale indicators5 records

Recent moves7 records

Broad incumbents

• badenova AG & Co. KG: Larger Baden-Württemberg regional utility offering electricity, gas, water, heat, and broadband across southern Germany. Demonstrates a scaling path for Baden-based Stadtwerke and competes on regional energy-transition services.
• EnBW Energie Baden-Württemberg AG: Largest Baden-Württemberg energy group — incumbent supplier across generation, distribution, retail, and broadband/telecoms. Sets competitive context on wholesale procurement, network operations benchmarks, and energy-transition product rollouts that Walldorf must respond to locally.
• MVV Energie AG: Major Mannheim-headquartered municipal utility and existing partner (eMotion Plus EV charging, predecessor employer of incoming Co-CEO Isabelle John). Significantly larger, vertically integrated across generation, distribution, retail, and energy services — sets the strategic direction the Walldorf team will benchmark against.

Direct peers

• Stadtwerke Wiesloch: Neighboring municipal utility serving Wiesloch (where Stadtwerke Walldorf is already extending fiber). Comparably sized multi-utility in the same Rhein-Neckar region, offering electricity, gas, water, and broadband. Directly comparable on scale, product mix, and Grundversorger business model.
• Stadtwerke Weinheim: Rhein-Necker municipal utility of comparable mid-size profile, offering electricity, gas, water, and broadband. Operates under identical German regulatory framework with similar Grundversorger and gMSB dynamics; a strong direct peer for benchmarking unit economics and product mix.
• Technische Werke Friedrichshafen (TWF): Lake Constance municipal multi-utility offering electricity, gas, water, district heating, and broadband under municipal ownership. Useful comparable for diversified municipal utility economics and product breadth.
• Stadtwerke Heidelberg: Larger but same-region municipal utility offering electricity, gas, water, district heating, and broadband (Heidelberg iT already a fiber partner of Walldorf). Same regulatory environment, similar Grundversorger + multi-utility model, useful scaling benchmark.
• Stadtwerke Speyer: Mid-size Pfalz municipal utility with comparable multi-utility portfolio (electricity, gas, water, broadband, swimming facilities). Same regulatory environment and product-mix template as Stadtwerke Walldorf.
• Stadtwerke Hockenheim: Small Rhein-Neckar municipal utility offering electricity, gas, water, and municipal services. Operates under identical German regulatory and Grundversorger framework with very similar size profile.
• Stadtwerke Schwetzingen: Mid-size Baden-Württemberg municipal utility with electricity, gas, water, and broadband services under the same regulatory regime. Closely comparable in scale and product mix to Stadtwerke Walldorf.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• Facebookfacebook.com/Stadtwerke-Walldorf-100095135380062
• LinkedInlinkedin.com/company/stadtwerke-walldorf

Compliance4 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles3 records

Subsidiaries2 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 Walldorf