LORENZ ENERGIE GmbH

What LORENZ ENERGIE GmbH does

LORENZ ENERGIE GmbH is a German building-technology contractor founded on May 1, 1997 in Gründau, Hessen, specializing in integrated energy-efficient building systems. Its service portfolio covers photovoltaic installations paired with battery storage (Fronius, BYD, SMA hardware), heat pumps (NIBE air-source, ground-source, exhaust air), electrical installations, smart-home and security systems, sanitary/bathroom renovations, and ongoing maintenance including VDE-compliant inspections. Since 2019 the company has installed heat pumps exclusively, having exited oil and gas heating work. Operations span private homeowners, small-to-mid commercial clients, and select large national commercial projects (notably the Deutsche Bank Park stadium PV installation delivered in partnership with Mainova AG), with primary geographic focus on the Main-Kinzig-Kreis region and broader German national reach via the Mainova relationship.

The company operates a sales-led, field-service go-to-market driven by on-site consultations, quote-based project pricing (PV systems financed from €99/month, self-consumed solar at 8–13 cents/kWh), trade-show presence (Baumesse Gelnhausen, Bau&Wohntrends), free information evenings, and a referral engine. Revenue is generated through one-time hardware-plus-installation margins on PV, heat pump, and electrical projects plus recurring maintenance and emergency-service contracts. As of 2025 the company employs 60+ people across two Gründau-Lieblos sites totaling roughly 1,500 m² of operational footprint, supported by a 35-vehicle fleet.

LORENZ ENERGIE is 49.9% owned by Mainova AG (Frankfurt's leading municipal energy service provider, €2.3B revenue in 2020) since a 2021 capital increase, with founder Mike Lorenz continuing as managing director alongside Klaus Syndikus, who joined in February 2026. Strategic positioning is as a regional 'one-stop-shop' renewable energy and electrical contractor that leverages Mainova's national platform to scale Mieterstrom (tenant electricity), commercial PV, and integrated energy-system projects.

Name

LORENZ ENERGIE GmbH

Legal name

LORENZ ENERGIE GmbH

Website

https://lorenzenergie.de

Company type

Private

Founded year

1997

Operating status

Operating

Headcount range

1–10 employees

Short description

LORENZ ENERGIE GmbH is a German building-technology contractor (founded 1997, Gründau) delivering integrated PV, battery storage, heat-pump, electrical, and smart-home installations plus maintenance to private homeowners and commercial clients, primarily in Main-Kinzig-Kreis and nationally via its 49.9% owner Mainova AG.

Ownership category

akta.pro rank

Product category

Energy-Efficient Building Technology Installation

NAICS

Plumbing, Heating, and Air-Conditioning Contractors (238220), Automatic Environmental Control Manufacturing for Residential, Commercial, and Appliance Use (334512)

SIC

Auto Controls For Regulating Residential & Comml Environments (3822), Refrigeration & Service Industry Machinery (3580)

akta.pro primary industry

HVAC Controls, Thermostats & Building Automation Installation (HSAOAGAJ)

akta.pro secondary industries

Heat Pump & Smart HVAC Controller Integration (HSAOANAD), Ventilation System Installation (Exhaust Fans, ERV/HRV, Make-Up Air) (HSAOAGAI), Ventilation System Installation & Repair (Bath/Kitchen Fans, ERV/HRV) (HSAOAIAF), Microgrid, DER & Building Electrification Energy Controls (Solar/Storage/EV Load Orchestration) (BPABAGAJ)

Keywords

• Solar PV installation
• Heat pump systems
• Building electrical services
• Battery storage solutions
• Smart home integration

Headquarters

HQ city

Gründau-Lieblos

HQ country

Germany

HQ region

Europe

Offices2 records

Markets served

GTM type

B2B and B2C

Offering type

Services

Cost components

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

Revenue model

1. Photovoltaic (PV) System Sales & Installation: Installation of complete PV systems including solar modules, inverters, and battery storage for residential and commercial buildings. Revenue generated through one-time installation fees and product margins.
2. Heat Pump Systems: Installation and sale of air-source, ground-source, and exhaust air heat pumps as complete heating solutions. Since 2019, exclusively installs heat pumps with no oil or gas heating systems.
3. Electrical Installations: Full-range electrical services including new installations, repairs, smart home systems, security technology, and network infrastructure for residential and commercial properties.
4. Maintenance & Service: Ongoing maintenance, repair, and cleaning services for PV systems (including VDE-compliant inspections every 2-4 years), heat pumps, and building systems. Emergency on-call service available October-March.
5. Sanitary & Bathroom Installations: Complete bathroom renovation and plumbing services including water treatment solutions through BWT partnership.

Pricing tiers

Go-to-market motion2 records

Distribution channels4 records

Marketing channels7 records

Core offering

LORENZ ENERGIE GmbH installs and services energy-efficient building technology for residential and commercial customers, including photovoltaic systems, battery storage, air-source/ground-source/exhaust air heat pumps, electrical installations, smart home systems, security and network technology, ventilation with heat recovery, and sanitary/bathroom installations. The company delivers complete building technology from a single source across the Main-Kinzig-Kreis region and nationwide for larger commercial projects.

Product overview

LORENZ ENERGIE GmbH is a building technology company offering integrated energy solutions as a unified service portfolio rather than a modular software platform. The core offerings include Photovoltaikanlagen (solar PV systems) paired with Stromspeicher (battery storage) for solar energy generation and storage; Wärmepumpen (heat pumps) including air-source, ground-source, and exhaust air systems for heating; Lüftungsanlagen (ventilation systems) with heat recovery; and comprehensive Elektrotechnik (electrical services) covering installations, Smart Home automation, Sicherheitstechnik (security systems), and Netzwerktechnik (networking). Supporting services include Sanitärinstallation (plumbing/bathroom renovation), PV-Wartung und Reinigung (PV maintenance), Notdienst (emergency service), and Support. The company operates as a full-service provider delivering complete building technology from a single source, serving residential, commercial, and new construction projects across Germany. Founded in 1997 and headquartered in Gründau-Lieblos, the company is 49.9% owned by Mainova AG since 2021.

Differentiator

Problem solved

Functional benefit

Products and services

• Photovoltaikanlagen (Photovoltaic Systems) Solar photovoltaic systems for generating electricity from sunlight, ranging from small residential installations to large commercial projects such as the Deutsche Bank Park stadium. Includes planning, installation, and mounting services.

Quantifiable outcome

• PV systems save approximately 700 kg CO2 per kWp installed per year
• +4 more outcomes

Named customers5 records

Segments3 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration2 records

Feature5 records

Partnerships

Six partnerships are on record, tiered core and minor.

• FroniuscoreTechnology or Integration · 1 January 2021Fronius System Partner since over 15 years. Lorenz Energie featured in Fronius 'We are Solar' marketing campaign. Company uses Fronius Symo GEN24 Plus hybrid inverters and promotes Fronius Solar.web monitoring platform. GEN24 Plus series achieved top ratings in HTW Berlin storage inspections 2020-2022.
• NIBE Systemtechnik GmbHcoreTechnology or Integration · 1 January 2020NIBE Efficiency Partner since 2020. NIBE Schulungs- und Beratungszentrum (training and consulting center) established at Lorenz Energie facilities. Products include air-source, ground-source, and exhaust air heat pumps. 7-year manufacturer warranty offered for NIBE S-Series heat pumps.
• BYDcoreTechnology or IntegrationPartnership for BYD Battery-Box Premium HVS battery storage systems. Cobalt-free lithium-iron-phosphate batteries with capacities from 5.1 kWh to 12.8 kWh, VDE 2510-50 certified.
• BAUER SolarcoreTechnology or IntegrationPremium solar module supplier featuring bifacial glass-glass half-cell modules with 440W-450W output, 30-year product and performance warranty. Modules featured at trade shows.
• SRM Straßenbeleuchtung Rhein-Main GmbHminorStrategic or Co-development PartnerPart of Mainova Group; collaboration on street lighting and public infrastructure projects.
• NRM Netzdienste Rhein-Main GmbHminorStrategic or Co-development PartnerPart of Mainova Group; energy and water grid services provider for Frankfurt and Rhine-Main region.

Scale indicators6 records

Recent moves9 records

Expansion highlights6 records

Direct peers

• DZ-4 GmbH: German specialist for PV and heat pump installations serving residential and commercial customers. Direct regional installer competitor with similar product scope.
• Enpal GmbH: Berlin-based scale player offering residential PV, battery storage, heat pumps and EV chargers, predominantly via leasing. Competes head-on with Lorenz in the bundled residential energy transition segment, but with a digital/VC-funded operating model.
• 1Komma5° GmbH: Hamburg-based one-stop-shop for residential heat pumps, PV, storage and dynamic electricity tariffs. Closely comparable bundled offering and direct competitor for Lorenz's integrated home-energy proposition.
• Zolar GmbH: Online PV marketplace and installer network connecting homeowners with regional installers for solar and increasingly heat pumps. Overlaps with Lorenz's residential customer journey and regional installer network.
• enerix: German franchise network for decentralized renewable energy (PV, storage, EV charging, heat pumps) with regional partners. Operates a regional-franchise model similar to Lorenz's local-installer footprint.

Broad incumbents

• Vaillant Group: Major heat-pump and heating manufacturer with installer programs. Comparable as a complementor (OEM) and indirect competitor where Vaillant's contracting network overlaps with Lorenz's installation footprint.
• EnBW Energie Baden-Württemberg AG: Large German energy group with dedicated residential PV, heat-pump and home-storage offerings (e.g., EnBW Solar+, EnBW Wärmepumpe). Competes with Lorenz as a vertically integrated utility installer.
• Stiebel Eltron GmbH & Co. KG: Leading German heat-pump and hot-water manufacturer with its own installer network. Comparable to Lorenz's heat-pump focus through both OEM supply and installed-system delivery.
• EWE TEL GmbH / EWE AG: Regional energy and telecom provider in Northern Germany offering residential PV, heat pumps and smart-home solutions. Indirect but comparable incumbent utility-energy-services peer.
• Mainova AG: Frankfurt-based municipal utility and 49.9% owner of Lorenz Energie. Comparable as a broad energy-services incumbent offering PV, Mieterstrom, heating and e-mobility solutions at utility scale.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• Facebookfacebook.com/lorenzenergie
• LinkedInlinkedin.com/company/lorenz-energie-gmbh

Revenue estimate

Valuation estimate

Number of profiles

Profiles2 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 LORENZ ENERGIE GmbH