Harz Energie GmbH & Co. KG

What Harz Energie GmbH & Co. KG does

Harz Energie GmbH & Co. KG is a privately held municipal energy utility (kommunaler Energieversorger) headquartered in Osterode am Harz, Germany, organized as a German Kommanditgesellschaft (KG). It supplies electricity, natural gas, drinking water, and liquefied petroleum gas (LPG) to approximately 290,000 people across the Harz, Harzvorland, and Eichsfeld regions of Lower Saxony, operating through wholly owned subsidiaries including Stadtwerke Bad Harzburg and the regulated network operator Harz Energie Netz GmbH. Its product portfolio spans commodity tariffs (basisStrom, ökoStrom, dynamikStrom, schwachlastStrom, basisGas, ecoGas, fixGas, flüssigGas), heating-electricity variants (thermoStrom for heat pumps and night storage), and value-added services (Photovoltaik & Wärmepumpe systems, Mieterstrom, Contracting, E-Mobilität with public AC/DC charging, Fördermittelberatung, energy certificates, and the EnergyDataView consumption-monitoring tool).

The company's technology stack combines physical utility infrastructure (electricity/gas/water networks, public EV charging stations with Type 2 and CCS connectors) with digital platforms including a Thüga Smart Service-powered customer portal (Kundenportal) and the Ladecloud platform, which provides access to over 390,000 charging points across Europe through the ladenetz.de city-utility network partnership. Harz Energie runs a sales-led, multi-channel go-to-market model anchored by 11 physical customer service centers, supplemented by phone, WhatsApp, online portal, and a dedicated field sales team for business customers and the housing industry (Wohnungswirtschaft). Revenue is generated primarily through subscription/recurring and usage-based commodity tariffs (electricity and gas monthly base fees plus consumption charges), supplemented by water volume charges, LPG supply via partnership with PROGAS, managed-services contracting for heating systems, hardware sales for PV installations, and per-kWh EV charging fees plus a €5/month charging card subscription introduced for 2026. Customer segments span residential households, commercial and industrial businesses, housing-industry clients, and regional government partnerships (notably Landkreis Goslar for public charging infrastructure).

Name

Harz Energie GmbH & Co. KG

Legal name

Harz Energie GmbH & Co. KG

Website

https://harzenergie.de

Company type

Private

Founded year

2002

Operating status

Operating

Headcount range

251–500 employees

Short description

Harz Energie GmbH & Co. KG is a privately held German municipal energy utility headquartered in Osterode am Harz, supplying electricity, natural gas, drinking water, LPG, and energy-transition services to approximately 290,000 people across the Harz, Harzvorland, and Eichsfeld regions of Lower Saxony.

Ownership category

akta.pro rank

Product category

Municipal Energy and Water Utility

NAICS

Utilities (22), Water, Sewage and Other Systems (2213)

SIC

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

akta.pro primary industry

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

akta.pro secondary industry

Repowering, Augmentation & Retrofit Integration (Capacity Expansion) (EUAEAEAL)

Keywords

• Municipal energy supply
• Electricity and gas tariffs
• Drinking water utility
• EV charging network
• Photovoltaic and heat pumps

Headquarters

HQ city

Osterode Am Harz

HQ country

Germany

HQ region

Europe

Offices3 records

Markets served

GTM type

B2B and B2C

Offering type

Services

Cost components

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

Revenue model

1. Electricity Supply (Strom): Provides electricity supply to residential and business customers with various tariff options including basisStrom, oekoStrom (eco), dynamikStrom, and schwachlastStrom (off-peak). Revenue generated through subscription/usage-based pricing with monthly base fees and consumption-based charges.
2. Natural Gas Supply (Erdgas): Provides natural gas supply including basisGas, ecoGas, and fixGas tariffs for residential and commercial customers. Revenue model based on subscription with consumption-based charges.
3. Drinking Water Supply (Trinkwasser): Provides drinking water supply in network areas with volume-based pricing and annual basic fees per connected household.
4. Liquefied Gas (Flüssiggas): Provides klimaneutral (climate-neutral) liquefied gas supply through partnership with PROGAS, including tank maintenance and regular refilling services.
5. EV Charging Infrastructure: Operates public charging stations for electric vehicles with AC and DC charging options. Revenue from per-kWh charging fees and monthly subscription for charging card access.
6. Contracting Services: Energy and heating management contracting for property owners without upfront investment. Customers pay monthly energy price including basic and consumption fees.
7. Photovoltaic Systems: Installs and operates photovoltaic systems for residential and commercial customers through regional partner installers, offering Mieterstrom (tenant electricity) models.

Pricing tiers

Go-to-market motion1 record

Distribution channels8 records

Marketing channels9 records

Core offering

Harz Energie is a regional municipal multi-utility supplying electricity, natural gas, and drinking water to roughly 290,000 people in the Harz, Harzvorland, and Eichsfeld regions of Lower Saxony. Its core offering is commodity supply delivered through tiered household and business tariffs (basisStrom, ökoStrom, dynamikStrom, schwachlastStrom for electricity; basisGas, ecoGas, fixGas, flüssigGas for gas; volume-based water pricing), augmented by value-added energy services such as photovoltaic and heat pump installations, EV charging infrastructure, energy contracting, Mieterstrom tenant electricity models, energy performance certificates, and subsidy advisory.

Product overview

Harz Energie GmbH & Co. KG is a regional municipal energy provider serving 290,000 people in the Harz, Harzvorland, and Eichsfeld regions. The company operates as a multi-utility offering with a portfolio-based approach spanning three core product categories: electricity (basisStrom, ökoStrom, dynamikStrom, schwachlastStrom), natural gas (basisGas, ecoGas, fixGas, flüssigGas), and drinking water. Beyond basic energy supply, the portfolio includes integrated energy solutions such as Photovoltaik & Wärmepumpe (combined PV and heat pump systems), E-Mobilität (electromobility with public charging infrastructure and 390,000+ European charging points via ladenetz.de), and Fördermittelberatung (subsidy advisory services). For business customers and housing companies, specialized offerings include Mieterstrom (tenant electricity), Contracting (heating systems without investment), and comprehensive property management services. The company maintains a digital platform via its Kundenportal and EnergyDataView for consumption monitoring. The product architecture follows a unified brand with modular add-ons, where core energy commodities serve as the foundation while value-added services in energy efficiency, e-mobility, and digital services drive differentiation.

Differentiator

Problem solved

Functional benefit

Products and services

• Harz Energie basisStrom Basic electricity tariff supplying households in the Harz supply area with standard grid electricity at the standard base-plus-consumption rate.
• Harz Energie ökoStrom Green electricity tariff sourced from renewable energy for environmentally conscious residential customers in the Harz supply area.
• Harz Energie dynamikStrom Dynamic electricity tariff for households with prices linked to wholesale market conditions, enabling consumption to be shifted to cheaper hours.
• Harz Energie schwachlastStrom Off-peak (low-load) electricity tariff for households with night storage heaters or other flexible loads, charging lower rates during off-peak hours.
• Harz Energie Thermostrom (WP/SH) Specialized electricity tariff designed for heat pump (WP) and night storage heating (SH) systems, available in standard and eco variants.
• Harz Energie basisGas Basic natural gas supply tariff for residential household heating and cooking use in the Harz network area.
• Harz Energie ecoGas Climate-neutral natural gas tariff with offset CO2 emissions, offered to environmentally conscious residential and small business customers.
• Harz Energie flüssigGas (LPG) Liquefied petroleum gas supply for properties without natural gas network access, available in conventional or bio variants through the PROGAS partnership, including tank delivery, installation, inspection, and refilling.
• Trinkwasserversorgung (Drinking Water Supply) Drinking water supply service for households in the network area, including water quality analysis, billed via annual basic fee per connection plus volume-based consumption charge.
• Photovoltaik & Wärmepumpe (PV and Heat Pump) Combined photovoltaic system and heat pump installation solution delivered with regional partner installers, providing customized residential decarbonization.
• E-Mobilität (Electromobility) Electromobility offering combining public AC and DC EV charging stations, a charging card (Ladecloud) with roaming access to over 390,000 charging points across Europe via ladenetz.de, and wallbox solutions for residential and business customers.
• Fördermittelberatung (Subsidy Advisory) Advisory service by certified energy consultants guiding residential and business customers through government subsidy and funding applications for energy-efficiency investments, from application through disbursement.
• Energieausweis (Energy Certificate) Issuance of energy performance certificates (consumption-based Verbrauchsausweis and demand-based Bedarfsausweis) required for property rental, sale, or leasing, priced per unit tier.
• Kundenportal (Customer Portal) Self-service online portal operated by Thüga Smart Service for residential and business customers to manage energy and water contracts, submit meter readings, view consumption data and energy reports, and access billing.
• EnergyDataView Online consumption-monitoring tool for business customers providing real-time visibility into energy usage and costs to support energy-cost optimization.
• Mieterstrom (Tenant Electricity) Tenant electricity model supplying residential properties with locally generated PV electricity at attractive conditions, targeted at housing companies and property owners.
• Contracting (Energy and Heat Management) Energy and heating management contracting in which Harz Energie installs, finances, and operates modern heating systems on customer property with no upfront customer investment, charging a base price plus working price.
• Photovoltaik (Housing Industry / Wobau) PV system installation services for property owners and housing companies, enhancing property value and supplying climate-friendly electricity to tenants via tenant electricity models.
• E-Mobilität (Housing Industry / Wobau) EV charging solutions for apartment buildings and housing companies, including wallbox and charging station installation for tenant use.

Quantifiable outcome

• Ranked among the most affordable providers nationwide according to comparisons
• +4 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

Integration14 records

Feature2 records

Partnerships

Five partnerships are on record, tiered core and minor.

• ladenetz.decoreChannel Partner/ Reseller/ DistributorHarz Energie is connected to the ladenetz.de city utility network, providing customers access to over 390,000 charging points across Europe. This partnership enables interoperability between charging networks and ensures charging infrastructure is accessible throughout Germany and Europe.
• PROGAScoreStrategic or Co-development PartnerPartnership for liquefied gas (Flüssiggas) supply. PROGAS provides tank infrastructure including delivery, installation, maintenance, and regular refilling. Harz Energie handles the gas supply. Together they offer climate-neutral bio-liquefied gas options.
• Landkreis GoslarcoreStrategic or Co-development PartnerPartnership for public EV charging infrastructure. Harz Energie installs and operates public AC charging stations on behalf of the district, including locations at the district administration and health office.
• Dr. Bittner Consulting GmbH & Co. KGminorImplementation/ SI/ Consulting PartnerExternal ombudsman service provider for Harz Energie's whistleblower system (Hinweisgebersystem). Receives and anonymizes reports before forwarding to Harz Energie.
• Johanniter-Unfall-Hilfe e.V.minorOthersPartner providing home emergency call services (Johanniter-Hausnotruf) offered through Harz Energie's website as an additional service for customers.

Scale indicators8 records

Recent moves8 records

Expansion highlights6 records

Direct peers

• EWE AG: Regional multi-utility headquartered in Oldenburg, Lower Saxony, supplying electricity, natural gas, telecommunications, and water across northwestern Germany. Directly comparable as a regional multi-commodity utility in the same federal state serving residential and business customers.
• Avacon AG: Network operator and energy supplier based in Helmstedt, Lower Saxony, operating electricity and gas networks plus supplying retail customers in the same Harz-adjacent region. Highly comparable as a Lower Saxony municipal/regional utility serving overlapping geographic territory.
• Pfalzwerke AG: Ludwigshafen-based regional utility supplying electricity, gas, water, and heat plus EV charging infrastructure in Rhineland-Palatinate. Comparable mid-sized German municipal utility with multi-commodity portfolio and EV charging expansion.
• N-ERGIE Aktiengesellschaft: Nuremberg-based regional municipal utility supplying electricity, gas, water, heat, and e-mobility across Middle Franconia. Comparable multi-utility portfolio with EV charging network and similar customer base composition.
• TEAG Thüringer Energie AG: Regional energy supplier in Thuringia offering electricity, gas, heat, and e-mobility services to residential and commercial customers. Directly comparable as a regional German municipal-style utility with multi-utility portfolio and rural customer base.
• Mainova AG: Frankfurt-based municipal multi-utility supplying electricity, gas, water, heat, and increasingly e-mobility services. Comparable regional multi-utility model with similar regulatory framework and customer segments.

Broad incumbents

• E.ON SE: Germany's largest energy supplier and network operator with nationwide retail electricity and gas offerings plus EV charging. Comparable core commodity supply business but operates at national scale across all German regions.
• EnBW Energie Baden-Württemberg AG: Large integrated energy supplier and network operator in Baden-Württemberg with retail electricity, gas, water, heat, and e-mobility offerings. Comparable product breadth, but operates as a much larger incumbent across a different region.

Others

• Thüga Aktiengesellschaft: Munich-based consortium of municipal utilities providing shared services, IT, and procurement for German Stadtwerke. Already a technology partner to Harz Energie via Thüga Smart Service; highly comparable as a horizontal municipal-utility ecosystem player.

Peers

• Stadtwerke München GmbH: Germany's largest municipal multi-utility, supplying electricity, natural gas, district heating, and water to Munich and surrounding areas. Comparable in operating model and product breadth, though significantly larger; serves as a benchmark for municipal utility best practice in Germany.

Market position

Strengths4 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights6 records

Customer concentration

• YouTubeyoutube.com/channel/UCnjJxN1FpbbaSGijBG7c0lQ
• Facebookfacebook.com/HarzEnergie
• Instagraminstagram.com/harz.energie
• LinkedInlinkedin.com/company/harz-energie

Compliance8 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles4 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 Harz Energie GmbH & Co. KG