What Green Energy Storage does

Green Energy Storage (GES), founded in 2017 and headquartered in Breda, Netherlands, is a leading Dutch developer, builder, and operator of large-scale grid-connected battery energy storage systems (BESS). The company targets enterprise customers across three segments: renewable energy developers and independent power producers such as Encavis, Deltawind, and Promill BV; energy suppliers and utilities such as Greenchoice; and grid operators including national TSO TenneT and regional DSOs Liander, Stedin, and Enexis. GES solves structural Dutch grid congestion and enables deeper integration of intermittent renewable generation by deploying co-located storage at wind and solar parks and providing grid balancing services.

GES's core technology comprises lithium-ion battery installations, including CATL EnerOne+ cells deployed at the Apeldoorn project, integrated with medium- and high-voltage transformers (e.g., 53 medium-voltage transformers and one 150 kV / 33 kV high-voltage transformer at Sequoia) and SCADA-based control systems for 24/7 monitoring and participation in FCR, aFRR, imbalance, and congestion management markets. The portfolio currently spans more than 300 MW operational or under construction across 9 completed installations and more than 4,000 MWh in development, anchored by the flagship Sequoia project at 200 MW / 800 MWh in Oosterhout, which is the first large-scale battery operating under the ACM congestion mitigator framework via a Capacity Steering Contract with TenneT. Other operational assets include Hartel 2 Uitbreiding (20 MW / 40 MWh), BESS Apeldoorn (15 MW / 30 MWh), Bomhofsplas (11 MW / 22 MWh), Windpark de Plaet (10 MW / 20 MWh), BECC (10 MW / 20 MWh), Hellegatsplein (3.5 MW / 5 MWh mobile), Hellegatsplein 2 (10 MW / 10 MWh), and De Dijken (7 MW / 8.75 MWh mobile), with pipeline assets including Hemmen (30 MW / 60 MWh), Greenport Venlo (15 MW / 60 MWh), Enerstroom II (20 MW / 40 MWh), and Hazenwinkel (10 MW / 40 MWh).

GES operates a B2B project developer and long-term asset manager business model, generating revenue through development fees, EPC-equivalent construction services, and recurring asset management contracts (24/7 monitoring, preventive and corrective maintenance, market optimization, compliance) over a 15-20+ year asset life. The go-to-market is enterprise sales-led, relying on direct relationships with renewable developers, energy companies, and grid operators, supplemented by co-investment from infrastructure partners including Energiefonds Overijssel and, most significantly, Royal Vopak, which announced a majority stake acquisition in May 2026. End-to-end lifecycle delivery from site identification and permitting through financing, construction, grid connection, and asset management is the company's primary commercial differentiator.

Name

Green Energy Storage

Legal name

Green Energy Storage

Website

https://green-energystorage.nl

Company type

Private

Founded year

2017

Operating status

Operating

Headcount range

11–50 employees

Short description

Green Energy Storage (GES), founded in 2017 in Breda, Netherlands, develops, builds, and operates large-scale grid-connected battery energy storage systems serving Dutch renewable energy developers, energy suppliers, and grid operators. The company manages nine operational installations exceeding 300 MW plus more than 4,000 MWh in development, anchored by the 200 MW / 800 MWh Sequoia project.

Ownership category

akta.pro rank

Product category

Grid-Scale Battery Energy Storage

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), BESS Market Participation & Trading Services (Ancillary/Capacity/Arbitrage) (EUAFAAAL), Utility-Scale BESS EPC & Integration (EUAEAEAA)

Keywords

• Grid-scale battery storage
• Energy storage systems
• Grid balancing services
• Renewable energy integration
• Congestion management solutions

Headquarters

HQ city

Breda

HQ country

Netherlands

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. BESS Project Development: GES develops large-scale battery storage projects for third-party customers and for its own portfolio. Revenue is generated through development fees, engineering and permitting services, and project handover to investors or operators.
2. Asset Management (O&M): Long-term technical and operational management of battery assets including 24/7 monitoring, preventive/corrective maintenance, market optimization, and compliance reporting. Generates recurring revenue from asset owners.
3. Grid Services Revenue (Project Level): BESS projects generate revenue through participation in energy markets: Frequency Containment Reserve (FCR), aFRR, imbalance markets, and congestion management. Revenue is market-dependent and variable.
4. Project Co-ownership / Investment Returns: Following the Vopak majority stake acquisition, GES will continue developing its project pipeline with co-investment from infrastructure partner Vopak, generating returns through project monetization and retained ownership stakes.

Go-to-market motion2 records

Distribution channels1 record

Marketing channels5 records

Core offering

Green Energy Storage (GES) develops, builds, and operates large-scale Battery Energy Storage Systems (BESS) in the Netherlands, providing grid balancing, congestion relief, FCR/aFRR, and imbalance market services to renewable energy developers, grid operators, and utilities. The company manages the full project lifecycle from site identification, permitting, and construction through long-term asset management, with 9 installations completed and a pipeline exceeding 4,000 MWh including the flagship 200 MW / 800 MWh Sequoia project.

Product overview

Green Energy Storage (GES) is a Dutch BESS developer offering large-scale battery energy storage systems with full lifecycle services. The portfolio includes flagship project Sequoia (200 MW / 800 MWh, the Netherlands' largest), alongside 15+ operational and developing projects including Hartel 2 Uitbreiding (20 MW / 40 MWh), Apeldoorn (15 MW / 30 MWh), Bomhofsplas (11 MW / 22 MWh), Hemmen (30 MW / 60 MWh), Greenport Venlo (15 MW / 60 MWh), Enerstroom II (20 MW / 40 MWh), Hazenwinkel (10 MW / 40 MWh), BECC (10 MW / 20 MWh), Windpark de Plaet (10 MW / 20 MWh), mobile and stationary systems at Hellegatsplein (3.5 MW + 10 MW), and De Dijken (7 MW mobile). Services span project development, construction/realization, and asset management. Total portfolio exceeds 300 MW operational/under construction and 4,000 MWh in development.

Differentiator

Problem solved

Functional benefit

Brands

• Sequoia: Large-scale BESS project of 200 MW / 800 MWh capacity, developed by GES in Oosterhout, designed as long-term energy infrastructure and congestion mitigator.

Products and services

• Battery Energy Storage Systems (BESS)

Quantifiable outcome

• 2,168,100 kg CO₂ reduction per year (Bomhofsplas BESS)
• +4 more outcomes

Named customers4 records

Segments3 records

Ideal customer profiles4 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

Twelve partnerships are on record, tiered core and minor.

• TenneTcoreStrategic or Co-development PartnerDutch national grid operator (TSO) and GES signed the first Capacity Steering Contract (CSC) for the Sequoia project under ACM's congestion mitigator framework, combined with a time-based transport right (TDTR). This is the first large-scale BESS to operate as a congestion mitigator in the Netherlands, setting a precedent for grid-storage cooperation.
• EncaviscoreStrategic or Co-development PartnerGES developed the BESS Apeldoorn project (15 MW / 30 MWh) for Encavis, a leading European IPP with ~4.9 GW of renewable capacity across 13 countries. GES handled full project development from concept through COD. Encavis retained GES for ongoing collaboration.
• AlfencoreImplementation/ SI/ Consulting PartnerAlfen served as the EPC contractor for BESS Apeldoorn, responsible for the delivery and electrical integration of battery containers. Alfen is a Dutch specialist in energy solutions, grid connections, and storage systems.
• GreenchoicecoreStrategic or Co-development PartnerGES and Greenchoice have a longstanding partnership on multiple BESS projects including Bomhofsplas, De Dijken, Hellegatsplein, and Hellegatsplein 2. Greenchoice serves as market interface and battery offtaker for flexible storage services on Dutch balancing markets. GES has worked with Greenchoice since at least 2018.
• Dekker GroepminorStrategic or Co-development PartnerDekker Groep is the owner of the Bomhofsplas sand quarry and supports the BESS project by providing the site. The battery is installed on their active mining location, enabling dual use of land.
• PrivatisminorImplementation/ SI/ Consulting PartnerPrivatis handled the electrical installation and grid connection of the Bomhofsplas BESS, integrating the battery system with the floating solar park.
• Blauwvinger EnergieminorStrategic or Co-development PartnerBlauwvinger Energie is a local energy cooperative in Overijssel that will have the opportunity to become a co-owner of the Bomhofsplas BESS project, providing community participation in energy storage infrastructure.
• LianderminorStrategic or Co-development PartnerRegional grid operator (DSO) for parts of the Netherlands. GES collaborates with Liander on grid connection studies and contracted capacity for projects such as Hemmen.
• StedinminorStrategic or Co-development PartnerRegional grid operator (DSO) for the Rotterdam area. GES collaborates with Stedin on grid connection and congestion management solutions.
• EnexisminorStrategic or Co-development PartnerRegional grid operator (DSO) for parts of the Netherlands. GES partners with Enexis on grid connections for BESS projects in their service territory.
• DentonsminorImplementation/ SI/ Consulting PartnerGlobal law firm Dentons advised GES on the first Capacity Steering Contract for Sequoia under the ACM framework, demonstrating GES's access to top-tier legal counsel for novel regulatory structures.
• GreenerminorChannel Partner/ Reseller/ DistributorGES developed mobile battery charging infrastructure for Greener at Hellegatsplein (8 containers, 3.5 MW / 5 MWh) and De Dijken (22 containers, 7 MW / 8.75 MWh). Greener rents mobile battery containers to festivals, construction sites, and other locations, deploying them on Dutch balancing markets when not rented out.

Scale indicators9 records

Recent moves7 records

Expansion highlights7 records

Direct peers

• S4 Energy: Dutch battery storage operator providing grid services and trading flexibility on European balancing markets. Direct peer in NL BESS operations, technology stack, and FCR/aFRR market participation.
• GIGA Storage: Dutch large-scale BESS developer focused on utility-scale battery storage projects in the Netherlands. Directly comparable to GES in target market (NL), product (utility-scale BESS), and customer base (TSO/DSO/IPPs).
• SemperPower: Dutch BESS developer operating flexible battery storage for balancing markets and grid services. Comparable to GES in geography (Netherlands), market participation (FCR/aFRR), and asset-based storage model.

Broad incumbents

• Fluence Energy: Global BESS technology and integration provider (Siemens/AES JV) supplying containerized systems, EMS software, and asset performance services to utility-scale developers. Comparable as a global BESS incumbent whose products and services compete with GES's own delivery stack.
• Ørsted: Global offshore wind leader with a growing utility-scale BESS portfolio, including projects in the Netherlands. Comparable as a large incumbent pursuing co-located battery storage at wind/solar sites across European grids.
• Alfen: Euronext Amsterdam-listed Dutch specialist in energy solutions, grid connections, and storage systems with a wider portfolio (EV charging, transformers, grid automation). Comparable to GES as NL BESS integrator and EPC partner (delivered Apeldoorn).
• Vattenfall: European utility investing in large-scale battery storage across Northwest Europe, including the Netherlands. Comparable as a broad incumbent operating BESS for balancing, congestion, and renewable integration.
• Tesla Energy: Global supplier of Megapack utility-scale battery systems and Autobidder market participation software. Comparable to GES as a major player in the same utility-scale BESS market and balancing-services ecosystem.
• RWE: European utility with material utility-scale BESS deployments in Germany and the Netherlands, often co-located with renewables. Comparable as a large incumbent with grid-scale storage ambitions in the same Dutch and Northwest European markets.
• Wartsila Energy Storage: Global technology provider of grid-scale battery storage solutions (Gridsolv Quantum) with European project deployments. Comparable to GES as a broader incumbent delivering utility-scale BESS hardware and integration across European markets.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks7 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/green-energystorage
• YouTubeyoutube.com/@greenenergystorage

Revenue estimate

Valuation estimate

Number of profiles

Profiles7 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 Green Energy Storage