Grünwerke

Name

Grünwerke

Legal name

Grünwerke GmbH

Website

https://gruenwerke.de

Company type

Private

Founded year

2010

Operating status

Operating

Headcount range

11–50 employees

Ownership category

akta.pro rank

Product category

Renewable Energy Project Development and Operations

NAICS

Wind Electric Power Generation (221115), Solar Electric Power Generation (221114), Hydroelectric Power Generation (221111)

SIC

Cogeneration Services & Small Power Producers (4991)

akta.pro primary industry

Wind Power Plant EPC (Onshore/Offshore) (EUAEAAAF)

akta.pro secondary industries

Construction Management & General Contracting (EPCM, Scheduling, QA/QC, HSE) (EUAMAFAJ), Environmental & Permitting Compliance During Construction (Erosion Control, Wildlife Mitigation, Monitoring) (EUAMAFAM)

Keywords

• Renewable energy development
• Wind power projects
• Photovoltaic installations
• Biomass energy systems
• Energy storage solutions

Headquarters

HQ city

Düsseldorf

HQ country

Germany

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Electricity Generation and Sales: Grünwerke generates renewable electricity through owned wind turbines and solar PV installations and sells the electricity to the grid or directly to offtakers via the Stadtwerke Düsseldorf trading desk. Revenue is derived from feed-in tariffs (EEG), direct marketing at the power exchange, and the sale of origin certificates (Herkunftsnachweise) for subsidy-free solar installations.
2. Land Lease / Land Partnership Model: Grünwerke enters land lease agreements with landowners (farmers, forest owners, property holders) in exchange for secure, fair rental payments. Landowners provide site access; Grünwerke funds and operates the renewable energy installation. Revenue from electricity sales funds the lease payments.
3. Technical and Commercial Asset Management: Grünwerke provides technical monitoring, operational optimization, commercial management, and reporting for its own assets and for partner project companies. Services include technical controlling and commercial operation management for joint-venture wind parks.

Go-to-market motion1 record

Distribution channels4 records

Marketing channels3 records

Core offering

Grünwerke develops, finances, builds, and operates renewable energy facilities across Germany, spanning wind, solar PV, biomass, hydropower, and energy storage. The company acts as project developer, investor, and long-term operator, offering landowners secure lease payments in exchange for site access and providing municipalities, partner utilities, and project developers with co-investment, technical, and commercial asset management services for the full project lifecycle.

Product overview

Grünwerke offers a unified portfolio of five renewable energy product lines: Windenergie (wind power), Photovoltaik (solar/photovoltaics), Biomasse (biomass energy), Wasserkraft (hydropower), and Speicher (energy storage). As a project developer, investor, and operator, the company provides end-to-end services across the entire project lifecycle—from initial site identification and planning through construction, commissioning, and long-term operation—for each energy type. The company primarily serves as a partner for landowners (farmers, forest owners), municipalities, and project developers, offering secure lease payments in exchange for site access. Services include technical and commercial operation management, environmental compliance, and community engagement for renewable energy installations across Germany.

Differentiator

Problem solved

Functional benefit

Products and services

• Wind Energy (Windenergie) End-to-end wind power project development, investment, and operation services. Grünwerke plans, constructs, finances, and operates wind turbines across Germany, offering landowners secure lease payments in exchange for site access and partnering with municipal utilities and citizen energy companies for co-investment.
• Photovoltaics (Photovoltaik) Solar PV project development, investment, and operation services covering ground-mounted arrays, commercial and rooftop installations. Grünwerke installs and operates photovoltaic systems providing property owners with lease income and selling electricity via EEG tariffs or directly with origin certificates.
• Biomass Energy (Biomasse)

Quantifiable outcome

• Windpark Lindtorf produces ~31 GWh/year, enough for ~9,400 households. Windpark Geldern produces ~32 GWh/year for ~10,000 households. Windpark Breitenbach produces ~21 GWh/year for ~6,000 households. PV-Anlage Plattling produces ~8.5 GWh/year for ~2,360 households.
• +3 more outcomes

Named customers8 records

Segments4 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration4 records

Partnerships

Ten partnerships are on record, tiered core and minor.

• Weidner Solar GmbHcoreStrategic or Co-development Partner · 1 January 2026Weidner Solar GmbH (Regensburg) signed contracts with Grünwerke at the end of 2025 for the development of Solarpark Sinzing (10 MWp, Bavaria), planned for construction in 2026. The partnership involves project development and contract signing for Grünwerke to build and operate.
• Solea AGcoreStrategic or Co-development Partner · 1 January 2025Grünwerke and Solea AG (based in Plattling, Bavaria) jointly developed the PV-Anlage Kösching (10.5 MWp, 2025), the largest solar PV ground-mounted installation in Grünwerke's portfolio. Solea contributed local development expertise and site access.
• Weidner EPC GmbHcoreImplementation/ SI/ Consulting Partner · 1 January 2025Weidner EPC GmbH served as the general contractor (EPC: Engineering, Procurement, Construction) for Solarpark Wernberg-Köblitz (10.3 MWp, 2025). Grünwerke is also working with Weidner Solar GmbH on Solarpark Sinzing (10 MWp, expected Q3 2026).
• Waldgenossenschaft Hauberg EiserfeldcoreStrategic or Co-development Partner · 1 January 2025Grünwerke is developing Windpark Siegen Kreuzeiche (22 MW, planned 2028) on the forest lands of the Waldgenossenschaft Hauberg Eiserfeld. The forest cooperative provides land access, and Grünwerke provides project development, financing, and operations.
• RheinWerke GmbHminorOthers · 1 January 2025Grünwerke acquired the wind turbine from RheinWerke GmbH in November 2025. The Senvion SE MM100 turbine (2 MW) in Neuss-Grefrath was added to Grünwerke's generation portfolio, representing an asset purchase rather than a partnership.
• Neue Energien Hilden GmbHcoreStrategic or Co-development Partner · 1 January 2014Grünwerke and Neue Energien Hilden GmbH (a subsidiary of Stadtwerke Hilden) co-invested in Windpark Lindtorf (15 MW, 2014) and Windenergieanlage Kemberg (3.1 MW, 2015). Neue Energien Hilden is a recurring JV partner providing capital and sharing green electricity output.
• MEGA Monheimer Elektrizitäts- und Gasversorgung GmbHcoreStrategic or Co-development Partner · 1 January 2014MEGA Monheimer is a partner in Windpark Lindtorf (2014), Windenergieanlage Kemberg (2015), and Windpark Prützke (2012). The partnership involves shared investment, and MEGA co-invests to receive green electricity generation output.
• Stadtwerke Wesel GmbHcoreStrategic or Co-development Partner · 1 January 2014Stadtwerke Wesel GmbH is a co-investor in Windpark Lindtorf (15 MW, 2014), a joint project with partners Neue Energien Hilden and MEGA. The partnership expands regional energy cooperation among municipal utilities.
• Stadtwerke Hilden GmbHcoreStrategic or Co-development Partner · 1 January 2012Stadtwerke Hilden co-invested with Grünwerke and MEGA in Windpark Prützke (6 MW, 2012, Brandenburg). The JV partners share investment and green electricity output, with Grünwerke providing operational management.
• EnBW (Energie Baden-Württemberg AG)minorStrategic or Co-development Partner · 1 January 2011Grünwerke holds a 4 MW ownership stake in the offshore wind park EnBW Baltic 1, located 16 km north of the Darß/Zingst peninsula in the German Baltic Sea. The 48.3 MW wind park has been operational since 2011. This is a minority investment, not a co-development.

Scale indicators5 records

Recent moves7 records

Expansion highlights5 records

Direct peers

• ABO Wind AG: ABO Wind is a German renewable energy developer active in wind, solar, and battery storage with a similar project-development-and-operation business model. The company develops projects from greenfield to operations and sells/operates assets — overlapping with Grünwerke's core developer-operator role in Germany.
• Encavis AG: Encavis is a German-listed independent power producer (IPP) that acquires and operates solar and wind parks across Europe. Like Grünwerke, Encavis generates revenue from electricity sales of owned renewable assets and provides asset management services — a comparable IPP-focused business.
• JUWI GmbH: JUWI is one of Germany's leading renewable energy project developers with a comparable end-to-end model spanning wind, solar, and hybrid projects. Like Grünwerke, JUWI develops, finances, builds, and operates renewable assets and engages landowners and municipalities as partners — making it a directly comparable German IPP/developer.
• Energiekontor AG: Energiekontor is a German renewable energy developer and operator with wind and solar projects across Germany and Europe. The company develops projects in-house and operates them as a long-term IPP — a business model directly comparable to Grünwerke's.
• PNE AG: PNE AG is a German wind and solar project developer with operations across Germany, Europe, and internationally. It shares Grünwerke's full-lifecycle developer model — from project planning and permitting through construction and operation — and also sells developed projects to investors or retains them in its own portfolio.
• wpd AG: wpd is a German-based wind and solar project developer and operator with a significant German onshore portfolio. The company handles project planning, financing, construction, and operation — directly mirroring Grünwerke's integrated developer-operator approach.

Regional players

• Mainova AG: Mainova is the municipal utility of Frankfurt am Main with growing renewable energy investments. Like Grünwerke, it operates as the green-energy subsidiary of a large German municipal utility, developing and operating renewable assets within a regional German footprint.
• Stadtwerke München (SWM) / M-net: Stadtwerke München is a municipal utility with significant renewable energy operations, primarily focused on Bavaria. As a city-owned utility pursuing renewables in a defined regional footprint, it parallels Grünwerke's structure as a Stadtwerke Düsseldorf subsidiary operating renewable assets in Germany.

Broad incumbents

• RWE Renewables: RWE is one of Europe's largest utilities with a substantial renewables portfolio spanning onshore/offshore wind, solar, and storage in Germany. While much larger and more diversified than Grünwerke, RWE Renewables competes directly for the same German wind sites, grid connections, and municipal partnerships.
• EnBW (Energie Baden-Württemberg AG): EnBW is a major German utility with large-scale renewable operations including offshore wind (Baltic 1, where Grünwerke holds a 4 MW stake), onshore wind, solar, and grid infrastructure. EnBW operates as a broad incumbent across multiple renewable technologies, overlapping with Grünwerke's diversified portfolio.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks5 records

Key highlights7 records

Customer concentration

Compliance2 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 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 Grünwerke