Green Flexibility
- Company typePrivate
- Founded2023
- HeadquartersKempten, Germany
- Headcount51–100
- GTM typeB2B
- OfferingServices
Green Flexibility firmographics
Firmographics- Name
- Green Flexibility
- Legal name
- green flexibility development GmbH
- Website
- https://green-flexibility.com
- Company type
- Private
- Founded year
- 2023
- Operating status
- Operating
- Headcount range
- 51–100 employees
- Ownership category
- akta.pro rank
Green Flexibility industry classification
Industry- Product category
- Energy Storage Services
- NAICS
- Electric Power Generation, Transmission and Distribution (2211), Electric Power Transmission, Control, and Distribution (22112)
- SIC
- Electric, Gas & Sanitary Services (4900)
- akta.pro primary industry
- Utility-Scale BESS Project Development & Ownership (IPP/Developer) (EUAFAAAA)
- akta.pro secondary industries
- BESS EPC, Integration & Commissioning (EUAFAAAB), BESS Operations, Maintenance & Asset Performance Management (APM) (EUAFAAAG)
Keywords
Where Green Flexibility is headquartered
LocationHeadquarters
- HQ city
- Kempten
- HQ country
- Germany
- HQ region
- Europe
Offices2 records
Markets served
Green Flexibility business model
Business model- GTM type
- B2B
- Offering type
- Services
- Cost components
- Infrastructure, Supply Chain, Personnel, Technology or R&D, Operations, Marketing or Sales
Revenue model
- Project Development & Long-term Operation: Full lifecycle partnership model: site identification, permitting, construction, financing, and long-term operation and marketing of large-scale battery storage systems. Revenue generated through project development fees, capital deployment for construction, and ongoing revenue from energy storage services and grid stabilization provision.
- Storage Capacity Services: Battery storage systems provide grid stabilization services, balancing supply and demand, and enable higher share of renewable energies. Revenue from grid operator partnerships and energy marketing.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Other | Multi-year contract | Project-based pricing varies by storage capacity and specifications |
Go-to-market motion1 record
Distribution channels1 record
Marketing channels7 records
Green Flexibility product offering
Product offeringCore offering
Green Flexibility develops, builds, finances, and operates large-scale battery energy storage systems (BESS) for grid stabilization and flexibility in Germany's renewable power system. The company manages the entire project lifecycle — from site identification, permitting, and grid connection to construction, long-term operation, and energy marketing — complemented by its proprietary REGIOlink operating concept that enables net-neutral, grid-supportive integration of storage assets.
Product overview
Green Flexibility operates as a developer-operator of large-scale battery energy storage systems (BESS) in Germany, offering a portfolio-based approach to grid stabilization and flexibility services. The core offering centers on Großbatteriespeicher (large-scale BESS) — physically engineered storage systems designed, built, and operated across the full project lifecycle from site identification through permitting, construction, and long-term operation with energy marketing. This core product is complemented by REGIOlink, the company's proprietary connection and operating concept featuring a Flexible Connection Agreement (FCA) portfolio that enables grid-neutral and grid-supportive battery integration. The elevate partner program extends co-development support to third-party project developers, while the Women Energising Storage (WES) initiative represents a professional community-building effort within the energy storage sector. The company targets diverse customer segments including grid operators, municipal utilities, local governments, project developers, and landholders, supported by strategic infrastructure partnerships.
Differentiator
Problem solved
Functional benefit
Products and services
- Großbatteriespeicher (Large-Scale Battery Energy Storage Systems) Large-scale battery energy storage systems (BESS) engineered, constructed, and long-term operated by Green Flexibility to provide grid stabilization, load balancing, and renewable integration services. Each project is delivered under a full-lifecycle partnership covering site identification, permitting, grid connection, financing, construction, and ongoing operation and energy marketing. Customers include grid operators (Netzbetreiber), municipal utilities (Stadtwerke), municipalities (Kommunen), and project developers.
- REGIOlink REGIOlink is Green Flexibility's proprietary connection and operating concept that enables large battery storage systems to be integrated into distribution grids in a grid-supporting rather than rigidly limited manner. It includes a portfolio of Flexible Connection Agreement (FCA) models — ranging from dynamic approaches for real-time grid adaptation to standardized grid-neutral operation models — developed in close coordination with network operators and policy makers.
Quantifiable outcome
- First net-neutral battery storage system in Germany operational
- +3 more outcomes
Companies that use Green Flexibility
Customer profileNamed customers6 records
Segments5 records
Ideal customer profiles4 records
Green Flexibility technology and API
TechnologyTechnology focussed Yes
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature3 records
Green Flexibility partnerships and signals
Strategic signalPartnerships
Ten partnerships are on record, tiered core and minor.
- StatkraftcorePartnership with European renewable energy leader Statkraft to optimize and trade three hybrid solar-plus-storage projects totaling 12 MW/24 MWh through 2031.
- Aurora Energy ResearchminorJoint 'Women Energising Storage' initiative to increase visibility for women in the energy transition. Community-building and professional exchange for women in the industry.
- LEW Verteilnetz GmbHcoreRegional grid operator subsidiary of Lechwerke AG. Joint 'Einspeisesteckdose' pilot project for net-neutral battery storage integration. Partnership for Balzhausen (80 MWh) and other projects in Bavarian Swabia network area.
- Allgäuer Überlandwerk (AÜW)corePartner for Immenstadt project - first net-neutral battery storage in Germany (15 MW/33 MWh). Joint development of grid-supporting storage solution with AllgäuNetz subsidiary.
- elevate Partner Program ParticipantscorePartner program for battery storage project developers. Targets developers with promising projects and grid connection commitments needing capital, technical expertise, or operational experience. Company secures financing, provides technical know-how, and operates projects long-term.
- gridXminorChristoph Lienert serves as investor and advisor to gridX, an energy management technology company.
- 1K5°minorChristoph Lienert and Bernd Arkenau serve as investors and advisors to 1K5° climate-focused investment platform.
- ESFORINminorChristoph Lienert serves as investor and advisor to ESFORIN.
- Hansa BatterycorePartnership extending project pipeline by 500 MW through collaboration on battery storage project development.
- VWEW-energieminorJoint 10 MW storage project in Marktoberdorf for regional energy storage and grid support.
Scale indicators10 records
Recent moves6 records
Expansion highlights6 records
Green Flexibility competitors and assessment
Company assessmentDirect peers
- Wärtsilä Energy Storage: Finnish technology group with grid-scale battery storage as a core platform (GridSolv product line), providing EPC, asset management, and trading services to utilities and IPPs. Closely comparable business model covering full BESS lifecycle for European grid operators.
- Fluence Energy: US-listed (NASDAQ: FLNC) global utility-scale BESS IPP/developer and turnkey systems provider. Closest comparable to Green Flexibility in scope (project development, EPC, long-term operation) and in customer segment (utilities, grid operators), with a similar German/European expansion focus.
- Tesla Energy: Megapack business deploys grid-scale BESS globally with full project development and long-term services. Direct competitor for utility-scale battery storage contracts in Germany and Europe, with overlapping customer base (utilities, IPPs, grid operators).
- Sonnen (Shell subsidiary): German battery storage company founded by the same team as Green Flexibility (Ostermann, Lienert, Schweizer). Operates residential/small commercial storage plus VPP aggregation in Germany — comparable as a direct founder-overlap peer with overlapping customer economics (energy marketing, grid services).
- Belectric: German EPC and developer for utility-scale solar and battery storage, with deep German project pipeline and grid-integration expertise. Comparable in scale, geography (Germany), and full-lifecycle BESS service model.
Broad incumbents
- RWE: Large German utility actively building utility-scale BESS across Germany to support renewable integration. Competes with Green Flexibility for grid-connection points and offtake contracts but operates across a much broader power-generation and T&D portfolio.
- EnBW: Major German energy company with significant BESS project pipeline in southern Germany. Overlaps with Green Flexibility in customer base (DSOs, municipalities) and Bavaria/southern Germany geography but operates a much broader portfolio across generation, grids, and EV charging.
- Uniper: German energy utility with growing battery storage and flexibility services portfolio across Germany. Competes for the same grid-services revenue streams and ancillary-services contracts, but is a vertically integrated multi-technology incumbent.
Regional players
- Harmony Energy: UK-headquartered developer-operator of utility-scale BESS projects across Europe. Comparable full-lifecycle developer/owner/operator model but primarily operates in UK and other European markets rather than Germany.
Emerging players
- Form Energy: US-based long-duration battery storage developer (iron-air technology) targeting utility-scale grid applications. Adjacent rather than direct competitor (different chemistry/duration), but competes for the same utility-customer budget for grid-scale storage services.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat5 records
Key risks7 records
Key highlights7 records
Customer concentration
Green Flexibility social profiles
Digital presenceGreen Flexibility financial estimates
Financial estimateRevenue estimate
Valuation estimate
Green Flexibility leadership team
Management profileNumber of profiles
Profiles7 records
Green Flexibility funding detail
Funding detailFunding overview
Funding rounds1 record
Investors1 record
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Green Flexibility M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about Green Flexibility
What does Green Flexibility do?
Green Flexibility develops, builds, finances, and operates large-scale battery energy storage systems (BESS) for grid stabilization and flexibility in Germany's renewable power system. The company manages the entire project lifecycle — from site identification, permitting, and grid connection to construction, long-term operation, and energy marketing — complemented by its proprietary REGIOlink operating concept that enables net-neutral, grid-supportive integration of storage assets.
Is Green Flexibility a public or private company?
Green Flexibility is a private company. It is classified as venture growth investor backed and is currently operating.
When was Green Flexibility founded?
Green Flexibility was founded in 2023. It employs 51 to 100 people.
Where is Green Flexibility based?
Green Flexibility is headquartered in Kempten, Germany, in the Europe region.
How does Green Flexibility make money?
Two revenue lines are on record. Project Development & Long-term Operation is the primary driver. The others are storage Capacity Services.
Who are Green Flexibility's main competitors?
Direct peers on record are Wärtsilä Energy Storage, Fluence Energy, Tesla Energy, Sonnen (Shell subsidiary) and Belectric. Broad incumbents are RWE, EnBW and Uniper. Harmony Energy is listed as a regional player. Form Energy is listed as an emerging player.
Does Green Flexibility have an API?
No public API is recorded for Green Flexibility.
What industry is Green Flexibility in?
Green Flexibility's product category is Energy Storage Services. Its primary akta.pro industry code is EUAFAAAA, Utility-Scale BESS Project Development & Ownership (IPP/Developer), with a secondary code of EUAFAAAB, BESS EPC, Integration & Commissioning. Its NAICS code is 2211 and its SIC code is 4900.