Stornetic
Stornetic GmbH, a Jülich-based subsidiary of ETC, designs and manufactures flywheel-based kinetic energy storage systems (EnWheel and DuraStor) for grid stabilisation, peak shaving, and industrial load management. It sells custom-engineered containerised storage solutions via project-based direct enterprise sales to utilities, research institutions, and industrial customers across Europe and Asia.
- Company typePrivate
- Founded2013
- HeadquartersJülich, Germany
- Headcount1–10
- GTM typeB2B
- OfferingHardware or Manufacturing
What Stornetic does
Stornetic GmbH is an energy-technology company headquartered in Jülich, Germany, that designs and manufactures flywheel-based kinetic energy storage systems under the EnWheel and DuraStor brands. The company's core technology uses carbon-fibre-reinforced polymer (CFRP) rotors operating contact-free in vacuum, suspended by active magnetic bearings and spun by permanent-magnet synchronous motors at speeds up to 45,000 revolutions per minute. EnWheel flywheel machines are offered in two power ratings (EnWheel 60 at 60 kW and EnWheel 130 at 130 kW per unit); these are combined inside containerised DuraStor systems (DuraStor 240, 260, and 1000) to deliver turnkey fast-power storage installations with response times below 30–40 milliseconds and round-trip efficiencies of 80–90 percent. The product portfolio is positioned for high-cycle, short-duration, high-power applications including grid stabilisation, frequency regulation, peak load shaving, virtual inertia, microgrid support, and hybridisation with battery or CHP systems.
The business operates a project-based, direct-enterprise sales model in which each installation is custom-engineered for the customer's power and energy profile; there are no standard SKUs, and pricing is project-specific and not publicly disclosed. Hardware sales of complete DuraStor systems and EnWheel machines form the primary revenue stream, complemented by installation, integration, construction support, and operational training services. Customers span municipal and national utilities (Stadtwerke München, EDF), research institutions (KIT), engineering firms (Nippon Koei), and consortium-led grid projects (Quirinus) across Germany, France, and Japan. Marketing is conducted through a technical content approach — website case studies, whitepapers on microgrids and hybrid storage, and video assets — targeting industrial buyers, grid operators, and researchers.
Stornetic is a wholly owned subsidiary of Enrichment Technology Company Ltd. (ETC), a nuclear-industry supplier with more than four decades of experience producing high-speed carbon-fibre rotating components, and the flywheel product line was formally spun out into Stornetic GmbH in August 2013. The current leadership comprises Managing Directors Reinhard Hinterreither (also CEO of ETC) and Dr. Andreas Scholz (Director of ETC's German operations, with the company since 1994), together with Dr. Christoph Schäfer as Head of Business Development & Technology since 2020. The technology carries CE marking with optional UL certification, holds a patent on its Ring Membrane anchoring component, and is designed for over 100,000 charge cycles with a 20-plus-year mechanical life.
Stornetic firmographics
Firmographics- Name
- Stornetic
- Legal name
- Stornetic GmbH
- Website
- https://stornetic.com
- Company type
- Private
- Founded year
- 2013
- Operating status
- Operating
- Headcount range
- 1–10 employees
- Short description
- Stornetic GmbH, a Jülich-based subsidiary of ETC, designs and manufactures flywheel-based kinetic energy storage systems (EnWheel and DuraStor) for grid stabilisation, peak shaving, and industrial load management. It sells custom-engineered containerised storage solutions via project-based direct enterprise sales to utilities, research institutions, and industrial customers across Europe and Asia.
- Ownership category
- akta.pro rank
Stornetic industry classification
Industry- Product category
- Energy Storage Systems
- NAICS
- Engine, Turbine, and Power Transmission Equipment Manufacturing (3336)
- SIC
- Motors & Generators (3621)
- akta.pro primary industry
- Mechanical LDES (Pumped Hydro, Compressed/Liquid Air, Flywheels) (EUAFADAB)
- akta.pro secondary industries
- Ancillary Services Aggregation & Bidding Optimization (DER/VPP participation) (EUAFALAJ), SCADA/Telemetry, Data Integration & Device Connectivity for Storage/DER Control (EUAFAKAI)
Keywords
Where Stornetic is headquartered
LocationHeadquarters
- HQ city
- Jülich
- HQ country
- Germany
- HQ region
- Europe
Offices1 record
Markets served
Stornetic business model
Business model- GTM type
- B2B
- Offering type
- Hardware or Manufacturing
- Cost components
- Technology or R&D, Personnel, Operations, Supply Chain, Marketing or Sales, Infrastructure
Revenue model
- Flywheel Energy Storage Hardware Sales: Custom-engineered DuraStor containerized systems and EnWheel flywheel machines sold as complete turnkey solutions. Systems are project-specific with pricing based on power capacity, energy requirements, and configuration. No standard product SKUs; each installation is individually designed.
- Installation & Integration Services: On-site installation, system integration, construction support, and operational training services provided alongside hardware sales.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Other | Multi-year contract | DuraStor 240 - 4 EnWheel 60 units |
| Other | Multi-year contract | DuraStor 260 - 2 EnWheel 130 units |
| Other | Multi-year contract | DuraStor 1000 - 16 EnWheel 60 units |
Go-to-market motion1 record
Distribution channels1 record
Marketing channels5 records
Stornetic product offering
Product offeringCore offering
Stornetic designs and manufactures flywheel-based fast power storage solutions for grid stabilization, decentralized load balancing, and hybrid power supply management. Its two product lines are EnWheel (high-speed kinetic flywheel machines with carbon-fiber rotors in vacuum, up to 45,000 RPM) and DuraStor (containerized modular storage systems that combine multiple EnWheel units, scalable from 240 kW to 1000 kW). Systems are custom-engineered and installed on-site for industrial facilities, utilities, and research institutions.
Product overview
Stornetic offers a portfolio of flywheel-based fast power storage products centered on two key technologies: EnWheel (kinetic flywheel machines) and DuraStor (containerized modular storage systems). The EnWheel is the core kinetic energy storage unit — a high-speed carbon-fibre flywheel machine available in two models: EnWheel 60 (60 kW) and EnWheel 130 (130 kW, more than double the power per unit). These flywheels are combined inside DuraStor containers to form complete storage solutions, scalable from 240 kW (DuraStor 240 with 4 EnWheel 60 units) through 260 kW (DuraStor 260 with 2 EnWheel 130 units) up to 1000 kW (DuraStor 1000 with 16 EnWheel 60 units). The DuraStor system is a turnkey, containerized, self-contained storage product that integrates multiple EnWheel machines with power electronics, control systems, and optional EMS/SCADA connectivity. All products are designed for industrial applications including grid stabilization, dynamic load management, peak shaving, power supply protection, and smart grid/microgrid solutions.
Differentiator
Problem solved
Functional benefit
Brands
- EnWheel: Kinetic flywheel energy storage unit designed for high-power performance with fast charging cycles, maintenance-free operation, and virtually no wear. Available in EnWheel 60 and EnWheel 130 models.
- DuraStor
Products and services
- EnWheel Flywheel System High-speed kinetic flywheel energy storage machine that stores electrical energy as rotational momentum in a carbon-fiber-reinforced rotor suspended by active magnetic bearings in a vacuum, achieving up to 45,000 RPM. Delivers high power with virtually no wear, near-zero maintenance, and long-lasting capacity independent of charging cycles. Available in EnWheel 60 (60 kW) and EnWheel 130 (130 kW) variants. Designed for grid operators, industrial facilities, and research institutions.
- DuraStor Containerized Storage System Containerized, modular fast power storage system built around EnWheel flywheel machines. Turnkey system integrating multiple EnWheel units into a single container, scalable from 240 kW (DuraStor 240 with 4 EnWheel 60 units) through 260 kW (DuraStor 260 with 2 EnWheel 130 units) up to 1000 kW (DuraStor 1000 with 16 EnWheel 60 units), with response times under 30-40ms and 80-84% round-trip efficiency. Designed for grid stabilization, load management, peak shaving, and hybrid power supply applications for industrial, utility, and research customers.
Companies that use Stornetic
Customer profileNamed customers5 records
Segments4 records
Ideal customer profiles4 records
Stornetic technology and API
TechnologyTechnology focussed Yes
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature4 records
Stornetic partnerships and signals
Strategic signalPartnerships
One partnership is on record.
- Enrichment Technology Company Ltd. (ETC)parent companyStornetic GmbH is a wholly owned subsidiary of ETC. ETC brings over four decades of expertise in producing almost frictionless, fast-rotating carbon-fiber components from the nuclear industry, providing the foundational technology expertise for Stornetic's flywheel systems.
Scale indicators5 records
Recent moves7 records
Expansion highlights5 records
Stornetic competitors and assessment
Company assessmentBroad incumbents
- Saft (TotalEnergies): Major battery manufacturer serving grid energy storage, industrial power, and transportation markets. Competes with Stornetic for the same grid-stabilization and industrial power-quality wallet, but as a much broader, battery-focused incumbent.
- Siemens Energy: Global energy technology incumbent offering grid storage, grid stabilization, and renewable integration solutions. Competes for the same utility and grid-services projects Stornetic targets, but as a full-portfolio energy systems provider.
- Fluence Energy: Leading grid-scale battery energy storage system provider, jointly backed by Siemens and AES. Competes with Stornetic for the same grid-services and renewable integration projects, but using battery-based platforms at much larger scale.
- Active Power (ABB): Flywheel-based UPS technology now part of ABB's broader power quality portfolio. Competes with Stornetic in flywheel-based critical power applications, while also offering batteries and broader power solutions.
Direct peers
- Beacon Power: US-based flywheel energy storage company specializing in grid frequency regulation using high-speed flywheels. Direct competitor in the same flywheel-based, short-duration, high-power grid stabilization segment as Stornetic.
- Vycon Energy: Manufacturer of flywheel-based kinetic energy storage systems primarily for UPS and power quality applications. Closely comparable in flywheel technology approach and industrial/grid customer overlap with Stornetic.
- Amber Kinetics: California-based flywheel energy storage company developing long-duration kinetic storage for grid applications. Directly comparable as a flywheel pure-play targeting utility-scale energy storage.
- Piller Power Systems: German-headquartered manufacturer of flywheel-based UPS and power conditioning systems. Strongly comparable in flywheel technology, German/European industrial customer base, and rotating kinetic energy storage for power quality and grid support.
- Temporal Power: Canadian flywheel energy storage company developing kinetic storage systems for grid and industrial applications. Direct competitor in mechanical flywheel-based grid-scale energy storage.
Emerging players
- Calnetix Technologies: Developer of high-speed permanent magnet motor/generator and flywheel energy storage technology. Comparable as a high-speed rotating machinery specialist entering grid and industrial kinetic energy storage adjacent to Stornetic's niche.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat4 records
Key risks6 records
Key highlights6 records
Customer concentration
Stornetic social profiles
Digital presenceStornetic compliance and trust
Trust signalCompliance2 records
Stornetic financial estimates
Financial estimateRevenue estimate
Valuation estimate
Stornetic leadership team
Management profileNumber of profiles
Profiles3 records
Stornetic funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Stornetic 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 Stornetic
What does Stornetic do?
Stornetic designs and manufactures flywheel-based fast power storage solutions for grid stabilization, decentralized load balancing, and hybrid power supply management. Its two product lines are EnWheel (high-speed kinetic flywheel machines with carbon-fiber rotors in vacuum, up to 45,000 RPM) and DuraStor (containerized modular storage systems that combine multiple EnWheel units, scalable from 240 kW to 1000 kW). Systems are custom-engineered and installed on-site for industrial facilities, utilities, and research institutions.
Is Stornetic a public or private company?
Stornetic is a private company. It is classified as corporate owned and is currently operating.
When was Stornetic founded?
Stornetic was founded in 2013. It employs 1 to 10 people.
Where is Stornetic based?
Stornetic is headquartered in Jülich, Germany, in the Europe region.
How does Stornetic make money?
Two revenue lines are on record. Flywheel Energy Storage Hardware Sales are the primary driver. The others are installation & Integration Services.
Who are Stornetic's main competitors?
Broad incumbents on record are Saft (TotalEnergies), Siemens Energy, Fluence Energy and Active Power (ABB). Direct peers are Beacon Power, Vycon Energy, Amber Kinetics, Piller Power Systems and Temporal Power. Calnetix Technologies is listed as an emerging player.
Does Stornetic have an API?
No public API is recorded for Stornetic.
What industry is Stornetic in?
Stornetic's product category is Energy Storage Systems. Its primary akta.pro industry code is EUAFADAB, Mechanical LDES (Pumped Hydro, Compressed/Liquid Air, Flywheels), with a secondary code of EUAFALAJ, Ancillary Services Aggregation & Bidding Optimization (DER/VPP participation). Its NAICS code is 3336 and its SIC code is 3621.