EnergyStock
EnergyStock B.V. is a Dutch underground gas storage operator and 100% Gasunie subsidiary running the world's fastest salt-cavern storage facility at Zuidwending, offering fast-cycle flexibility, trading, and interruptible services to global energy companies and traders on the TTF and Flange markets.
- Company typePrivate
- Founded2011
- HeadquartersGroningen, Netherlands
- Headcount11–50
- GTM typeB2B
- OfferingServices
What EnergyStock does
EnergyStock B.V. is a privately held Dutch gas storage system operator, founded in January 2011 and headquartered in Groningen with the operating facility at Zuidwending, Veendam. It is a 100% subsidiary of N.V. Nederlandse Gasunie, a Dutch state-owned energy infrastructure company, but operates independently and is certified as a gas storage system operator under Article 3bis of Regulation (EC) No. 715/2009 by the Netherlands Authority for Consumers & Markets (ACM).
The company's core asset is an underground gas storage facility built into six salt caverns at depths of 1,000 to 1,500 meters, with a two-tubes-per-cavern technical layout that delivers a total working gas volume of approximately 3,600,000 MWh, total injection capacity of approximately 13,000 MWh/h, and total withdrawal capacity of approximately 18,000 MWh/h. The facility is described as the world's fastest underground gas storage asset, capable of switching between full injection and full withdrawal in 30 minutes and supporting materially more annual cycles than conventional storage, with 24/7 availability requiring only around 10 working days of annual maintenance. Operations are monitored and controlled in real time from the Gasunie Central Command Post.
EnergyStock sells fast-cycle flexibility services to enterprise energy companies and traders on both the TTF and Flange market areas, including Hourly Flex Services (firm intra-day flexibility with renomination rights, 1-5 year bilateral contracts), Trading Services (annual PRISMA auctions, day-ahead tradable products), Interruptible Services, RoSY Remainder-of-Storage-Year Services, Add-on Services and a free Secondary Booking Platform for Transfer of Use trading. Pricing is market-based and tied to three value components: within-day flexibility, intrinsic value from forward-curve trading on TTF, and extrinsic value from volatility capture. Customers include Vattenfall, RWE, ENGIE, Gunvor, PetroChina, Eneco, GreenChoice, Gulf, EP NL, BBL and Gasunie Transport Services. Beyond natural gas, EnergyStock runs a 1 MW power-to-hydrogen electrolysis pilot (described as the first of significant scale in the Netherlands), operates a green hydrogen refueling station, and is developing the HyStock project for underground hydrogen storage in salt caverns at the same site.
EnergyStock firmographics
Firmographics- Name
- EnergyStock
- Legal name
- EnergyStock B.V.
- Website
- https://energystock.com
- Company type
- Private
- Founded year
- 2011
- Operating status
- Operating
- Headcount range
- 11–50 employees
- Short description
- EnergyStock B.V. is a Dutch underground gas storage operator and 100% Gasunie subsidiary running the world's fastest salt-cavern storage facility at Zuidwending, offering fast-cycle flexibility, trading, and interruptible services to global energy companies and traders on the TTF and Flange markets.
- Ownership category
- akta.pro rank
EnergyStock industry classification
Industry- Product category
- Underground Gas Storage Services
- NAICS
- Pipeline Transportation of Natural Gas (486210), Natural Gas Distribution (2212), Natural Gas Distribution (22121)
- SIC
- Natural Gas Transmission (4922), Natural Gas Transmisison & Distribution (4923), Public Warehousing & Storage (4220)
- akta.pro primary industry
- Natural Gas Storage Facilities (Underground Storage, LNG Peak-Shaving) (TLAGAKAC)
- akta.pro secondary industries
- Hydrogen Storage Operations, Maintenance & Asset Management Services (EUAFAEAL), Underground & Geological Storage for Synthetic Fuels (Caverns, Depleted Fields, Lined Rock Caverns) (EUAFAFAH), Hydrogen Storage EPC, Engineering & Construction (Aboveground/Underground Facilities) (EUAFAEAK), Supply Portfolio & Hedging Strategy (Retail Supply Risk) (EUAJAGAA), Energy Storage Asset Management (BESS/PCS/EMS) (EUAEAMAE)
Keywords
Where EnergyStock is headquartered
LocationHeadquarters
- HQ city
- Groningen
- HQ country
- Netherlands
- HQ region
- Europe
Offices2 records
Markets served
EnergyStock business model
Business model- GTM type
- B2B
- Offering type
- Services
- Cost components
- Infrastructure, Operations, Personnel, Technology or R&D, Marketing or Sales
Revenue model
- Storage Capacity Fees: Fees based on three value fundamentals: within day flexibility for end users market security and balancing, intrinsic value from trading on forward curve capturing shorter and longer term price spreads on TTF, and extrinsic value from trading strategies including rolling intrinsic, delta hedging and spot trading where higher volatility yields higher extrinsic value.
- Hourly Flex Services: Firm services with injection capacity 0.67 MWh/h, 24-hour injection curve, withdrawal capacity 1 MWh/h, 16-hour withdrawal curve, and working gas volume 1-480 MWh. Available 24/7 on TTF and Flange with short lead time nomination rights of 35 minutes on TTF and 30 minutes on Flange.
- Trading Services: Firm services designed to generate value through tradable products supporting day-ahead nominations with flat intra-day profile. Both injection and withdrawal capacity available 24 hours per day on TTF, auctioned yearly.
- Interruptible Services: Capacity not used by firm services offered on interruptible basis with priority-based interruption.
- RoSY Services: Remainder of Storage Year services offered if capacity and working gas volume are available at start of storage year, term lasting until end of storage year.
- Secondary Booking Platform: Free-of-charge information platform facilitating secondary trading of storage capacity, enabling customers to buy/sell storage capacity through Transfer of Use mechanism.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Other | Multi-year contract | Market-based pricing model based on value components |
Go-to-market motion3 records
Distribution channels4 records
Marketing channels4 records
EnergyStock product offering
Product offeringCore offering
EnergyStock operates the world's fastest underground gas storage facility at Zuidwending, Netherlands, providing fast-cycle gas storage services to energy companies and traders on the TTF and Flange market areas. Its services include Hourly Flex Services (firm intra-day flexibility with 35/30-minute nomination lead times), Trading Services (24/7 tradable capacity auctioned annually via PRISMA), Interruptible Services, RoSY (Remainder of Storage Year) Services, and Add-on Services for additional working gas volume. The company is also developing hydrogen storage through the HyStock project and operates a 1 MW electrolysis pilot.
Product overview
EnergyStock operates the world's fastest underground gas storage facility, capable of switching between full injection and withdrawal in 30 minutes. The company's product portfolio consists of multiple flexibility service offerings: Hourly Flex Services (firm intra-day flexibility with renomination rights), Trading Services (day-ahead tradable products), Interruptible Services, RoSY (Remainder of Storage Year) Services, and Add-on Services for additional working gas volume. Additionally, EnergyStock offers a Secondary Booking Platform for secondary trading of storage capacity. The company is also developing hydrogen storage infrastructure through the HyStock project and operates a 1-megawatt electrolysis pilot for green hydrogen production.
Differentiator
Problem solved
Functional benefit
Products and services
- Hourly Flex Services
Quantifiable outcome
- 30 minutes switching time between injection and withdrawal
- +3 more outcomes
Companies that use EnergyStock
Customer profileNamed customers11 records
Segments4 records
Ideal customer profiles1 record
EnergyStock technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Integration3 records
Feature5 records
EnergyStock partnerships and signals
Strategic signalPartnerships
Three partnerships are on record, tiered core and major.
- PRISMAcorePRISMA is the auction platform used by EnergyStock for annual Trading services auctions. Market participants must register on PRISMA and be connected to EnergyStock as SSO to participate in auctions.
- HyStockmajorHyStock is planning to develop hydrogen storage salt caverns at EnergyStock location, making hydrogen storage accessible to all parties who want to store hydrogen.
- Gasunie Central Command PostcoreFacility monitoring and control is normally conducted from Gasunie Central Command Post where facility and caverns can be monitored and controlled in real time.
Scale indicators9 records
Recent moves8 records
Expansion highlights4 records
EnergyStock competitors and assessment
Company assessmentBroad incumbents
- Fluxys: Belgian gas infrastructure operator with storage, transmission, and LNG terminalling across Northwest Europe. Comparable on gas storage services and TTF/ZTP-area trading hub infrastructure, though broader portfolio than EnergyStock.
- Equinor (Gas Storage): Integrated Norwegian energy major with European gas storage interests. Comparable on storage capacity offerings, though storage is a small subset of an upstream-to-marketing integrated business.
- RWE Gas Storage: RWE's gas storage activities (also an EnergyStock customer) across European hubs. Comparable on flexibility/seasonal storage services, though storage is one segment within RWE's broader integrated utility portfolio.
Direct peers
- Uniper Energy Storage: Operates one of Europe's largest gas storage portfolios across Germany, Austria, the UK, and Italy. Directly comparable in selling fast-cycle and seasonal storage capacity to energy companies on European gas hubs.
- Storengy: Subsidiary of ENGIE and Europe's largest pure-play underground gas storage operator across France, Germany, and the UK. Directly comparable business model of selling storage capacity/flexibility services to traders and utilities on European hubs.
- NAM (Nederlandse Aardolie Maatschappij): Operates the Norg and Grijpskerk underground gas storage fields in the Netherlands under Gasunie stewardship. Direct domestic comparable on Dutch salt-cavern/sandstone storage serving TTF-area flexibility demand.
- VNG Gasspeicher: German underground gas storage operator (part of VNG/EnBW group) providing capacity and flexibility services on European gas markets. Closely comparable offering of storage capacity products to traders and utilities.
- Stoccaggi Gas Italia (Eni): Eni's Italian gas storage subsidiary operating eight fields providing capacity, modulation, and balancing services. Direct comparable on selling storage flexibility to European traders and utilities on a regulated/virtual hub.
- SEFE Storage: Securing Energy for Europe (formerly Gazprom Germania), operates large-scale gas storage in Germany including the Bergermeer facility in the Netherlands. Direct comparable on underground storage capacity and Dutch/Northwest European market focus.
Regional players
- TAQA Energy Solutions: Abu Dhabi-headquartered energy operator with European gas storage activities (historically the Bergermeer facility in the Netherlands). Comparable on salt-cavern storage technicals, though focused on different regional portfolio strategy.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat5 records
Key risks6 records
Key highlights7 records
Customer concentration
EnergyStock social profiles
Digital presenceEnergyStock compliance and trust
Trust signalCompliance2 records
EnergyStock financial estimates
Financial estimateRevenue estimate
Valuation estimate
EnergyStock leadership team
Management profileNumber of profiles
Profiles8 records
EnergyStock funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
EnergyStock 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 EnergyStock
What does EnergyStock do?
EnergyStock operates the world's fastest underground gas storage facility at Zuidwending, Netherlands, providing fast-cycle gas storage services to energy companies and traders on the TTF and Flange market areas. Its services include Hourly Flex Services (firm intra-day flexibility with 35/30-minute nomination lead times), Trading Services (24/7 tradable capacity auctioned annually via PRISMA), Interruptible Services, RoSY (Remainder of Storage Year) Services, and Add-on Services for additional working gas volume. The company is also developing hydrogen storage through the HyStock project and operates a 1 MW electrolysis pilot.
Is EnergyStock a public or private company?
EnergyStock is a private company. It is classified as corporate owned and is currently operating.
When was EnergyStock founded?
EnergyStock was founded in 2011. It employs 11 to 50 people.
Where is EnergyStock based?
EnergyStock is headquartered in Groningen, Netherlands, in the Europe region.
How does EnergyStock make money?
Six revenue lines are on record. Storage Capacity Fees are the primary driver. The others are hourly Flex Services, trading Services, interruptible Services, roSY Services and secondary Booking Platform.
Who are EnergyStock's main competitors?
Broad incumbents on record are Fluxys, Equinor (Gas Storage) and RWE Gas Storage. Direct peers are Uniper Energy Storage, Storengy, NAM (Nederlandse Aardolie Maatschappij), VNG Gasspeicher, Stoccaggi Gas Italia (Eni) and SEFE Storage. TAQA Energy Solutions is listed as a regional player.
Does EnergyStock have an API?
No public API is recorded for EnergyStock.
What industry is EnergyStock in?
EnergyStock's product category is Underground Gas Storage Services. Its primary akta.pro industry code is TLAGAKAC, Natural Gas Storage Facilities (Underground Storage, LNG Peak-Shaving), with a secondary code of EUAFAEAL, Hydrogen Storage Operations, Maintenance & Asset Management Services. Its NAICS code is 486210 and its SIC code is 4922.