Top Flywheel Energy Storage Companies

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19 companies for Flywheel Energy Storage

OXTO Energy's Logo

OXTO Energy

Guildford, United Kingdom

1-10 Employees


OXTO Energy is transforming the way energy is stored to meet the world's demand for sustainable energy. OXTO Energy's certified technology can help you make your project more profitable. Our proprietary hardware technology is focused on a completely new generation of flywheel batteries which have the potential to change energy storage for industries like manufacturing, transportation, real estate and many more by stabilising electricity from renewable intermittent sources of energy and reducing the cost of power consumption . The global demand for a low carbon economy is bringing rapid changes to energy networks and large energy companies. Renewable integration and rapid deployment of Electric Vehicle charging stations are reshaping the energy networks loading scenarios and are creating more and more grid losses and power cuts.Our hardware solution provides stabilisation for electricity from renewable intermittent sources of energy thus allowing for greater integration of solar and wind energy within the grid and supporting your company's sustainability goals.

Core business

Next Generation Flywheel Energy Storage

... Next Generation Flywheel Energy Storage ...

Helix Power's Logo

Helix Power

Somerville, United States

1-10 Employees


Core business

Helix Power | Energy Storage | Flywheel | Massachusetts

... Helix Power | Energy Storage | Flywheel | ...

KESA Energy's Logo

KESA Energy


1-10 Employees


Not only is KESA focused on delivering world-leading defence capability, our team has also identified a way to store and provide carbon-free clean energy to assist society with transitioning to a carbon-neutral future. We not only provide bespoke solutions for high-power discharge requirements, but also work within existing networks and infrastructure to augment the capabilities of working power facilities. The system is completely reusable and produces zero carbon emissions.

Core business

About | KESA Energy

... High Power Discharge Flywheel Energy Storage System. More power in less ...



Dayton, United States

1-10 Employees


Your mission-critical facilities need the very best in precision cooling, and we deliver with the industry’s most advanced equipment and controls…. That’s why we offer reliable and efficient products that work together to safeguard your mission-critical networks.


Flywheel Energy Storage - Uptime Solutions

... Flywheel Energy Storage - Uptime ...

Donwil's Logo


McKees Rocks, United States

11-50 Employees


Founded in 1965, Donwil sells and services critical business process power and cooling products for enterprises located in Western Pennsylvania, Western Virginia, or Eastern Ohio. For over 5 decades, Donwil has provided premium data center solutions and products throughout Western Pennsylvania, West Virginia, and Eastern Ohio. Which is why Donwil sells and services the highest performing power and cooling products – so you can have the most reliable and efficient energy necessary to perpetually power your critical business processes and peruse endless potential. As the exclusive provider of Vertiv, Liebert, Starline, and Hitachi, Donwil provides premium products, unrivalled expertise, and the most responsive and reliable service —which means you can rest assured knowing that your critical business processes are always running. Your projects are mission-critical, and we’re there for you before, during, and after construction —from system procurement to start-up to commissioning monitoring and maintenance. Our team of experts is dedicated to powering your possibilities, and would love to hear from you. As the exclusive provider of Vertiv, Liebert, Starline, and Hitachi, Donwil provides premium products, unrivaled expertise, and the most responsive and reliable service — which means you can rest assured knowing that your critical business processes are always running. As the exclusive provider of Vertiv, Liebert, Starline, and Hitachi, Donwil’s expertise with air quality and HVAC services will ensure your continuous business operations are always running.


Liebert FS Flywheel Energy Storage

... Liebert FS Flywheel Energy Storage - ...

PUNCH Flybrid's Logo

PUNCH Flybrid

Silverstone, United Kingdom

11-50 Employees


Our products help capture, optimise and reuse energy across a wide range of applications. Our products help capture, optimise and reuse energy across a wide range of applications and industries. At Dumarey Flybrid, our mission is to revolutionise power systems, reduce emissions, and create a cleaner future. We are excited to announce that Alex Keys our incredible Sales & Marketing Director will be chatting with the wonderful Fiona Pawley for the Inside. Our customers operate equipment which runs on dynamic duty cycles, where motors are constantly starting and stopping. Envisioning a future of sustainable progress, our mission revolves around crafting innovative technology to provide efficient power solutions. Our unwavering commitment to this cause fuels our relentless pursuit of innovative solutions. At the heart of our organization, our values are the cornerstone that upholds our mission and vision.

Core business

PUNCH Flybrid – PUNCH Flybrid is the leading developer of flywheel–based Energy Storage Systems

... Flybrid is the leading developer of flywheel–based Energy Storage ...

Amber Kinetics's Logo

Amber Kinetics

California, United States

1-10 Employees


Amber Kinetics is the world’s first and only long-duration flywheel flexible and rugged enough to meet the challenge. The Amber Kinetics flywheel is the first commercialized four-hour discharge, long-duration FESS solution powered by advanced technology that stores 32 kWh of energy in a two-ton steel rotor.

Core business

Amber Kinetics - Take Charge

... Kinetics manufactures flywheel energy storage systems (FESS). Long- ...

Elcon Associates's Logo

Elcon Associates

Beaverton, United States

11-50 Employees


We provide professional services in the areas of Rail Transit, Transit Facilities & Transportation, Water & Wastewater, Aviation, Marine Ports, Energy, Municipal and Institutional, and Military and Federal Government. Our team of experienced engineers and designers specialize in the fields of power, lighting, communications, instrumentation and control systems, and rail systems engineering including traction power, OCS, signals, corrosion control, and systems integration.


Wayside Flywheel Energy Storage Substation for Red Line - Elcon Associates

... Wayside Flywheel Energy Storage Substation for Red Line - Elcon ...

Mohawk Innovative Technology's Logo

Mohawk Innovative Technology

City of Albany, United States

11-50 Employees


Mohawk Innovative Technology, Inc., established in 1994, is the world’s leading authority in developing oil-free, high-speed rotating machinery employing compliant foil air bearing technologies. Using our proprietary know-how, company trade secrets, proprietary design software and patented technologies, we have developed a family of CleanTech, high efficiency, oil-free turbomachinery that include renewable energy turbogenerators, oil-free turbocompressors/blowers and electric motors. Each of these novel products are Made in the U.S. and combine high power density and high-speed permanent magnet motor elements, advanced Variable Frequency Drives (VFD) and patented 6th Generation oil-free compliant foil bearings. By integrating these key advanced technologies compact and reliable variable speed machines with electromechanical efficiencies – higher than any other machine on the market today – are possible. Besides achieving high efficiency, Mohawk Innovative’s oil-free systems offer substantial environmental benefits by eliminating hazardous waste oil disposal concerns and lubricating oil contaminations.


Novel Magnetic Bearings for Flywheel Energy Storage System – Mohawk Innovative Technology, Inc.

... Magnetic Bearings for Flywheel Energy Storage System – Mohawk ...

Convergent Energy and Power's Logo

Convergent Energy and Power

New York, United States

11-50 Employees


When Convergent was founded in 2011, battery storage was a new concept. This energy storage offering complements the broader suite of solutions, including energy efficiency and energy management, that we already provide. Energy storage (standalone or paired with solar PV), allows power to be delivered at the most strategic times. It is only within the past decade that energy storage has become a cost-effective solution to deliver power when you need it, not simply when it is produced. For the first time in the history of the grid, we are no longer dependent on using energy at the precise moment it is produced.


Flywheel energy storage – Utility - Convergent Energy and Power

... Flywheel energy storage – Utility - Convergent Energy and ...

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Insights about the Flywheel Energy Storage results above

Some interesting numbers and facts about your company results for Flywheel Energy Storage

Country with most fitting companiesUnited Kingdom
Amount of fitting manufacturers1327
Amount of suitable service providers1156
Average amount of employees11-50
Oldest suiting company1997
Youngest suiting company2016

Geographic distribution of results





Things to know about Flywheel Energy Storage

What is Flywheel Energy Storage?

Flywheel Energy Storage (FES) refers to a mechanical battery technology that harnesses the kinetic energy of a rotating mass, or flywheel, to store energy. The core principle involves accelerating a flywheel to very high speeds using electrical energy, thereby converting and storing this energy as rotational kinetic energy. When energy retrieval is needed, the process is reversed: the kinetic energy of the spinning flywheel is converted back into electrical energy via a generator mechanism. This technology leverages materials of high strength and low density for the flywheel construction, such as carbon fiber composites, to endure the stresses of high-speed rotation and to maximize energy storage density. Additionally, modern FES systems often employ magnetic bearings and operate in a vacuum to significantly reduce frictional losses, thereby enhancing efficiency. Within its field, FES stands out for its rapid response times, high power density, and the capability for numerous charge-discharge cycles without significant degradation, making it particularly suitable for applications requiring high power for short durations. These characteristics render FES a valuable tool for grid energy storage, facilitating the integration of renewable energy sources by compensating for their variability, and enhancing grid stability. Furthermore, its application spans to uninterruptible power supplies (UPS) for critical load support, and in enhancing the performance and efficiency of hybrid and electric vehicles, underscoring its versatile impact across various domains of energy management and sustainability.

Advantages of Flywheel Energy Storage

1. High Efficiency
: Flywheel energy storage systems boast remarkable energy efficiency, with the ability to convert and store electricity at rates often exceeding 90%. This efficiency surpasses many alternative energy storage methods, making it a more effective solution for capturing and utilizing renewable energy.

2. Long Lifespan and Durability
: Unlike batteries that can degrade significantly over time, flywheels are designed for durability and have a much longer operational lifespan. They can endure millions of charge and discharge cycles without substantial loss of capacity, providing a more sustainable and cost-effective storage option over the long term.

3. Fast Charge and Discharge Rates
: Flywheels can be charged and discharged at very high rates, which is invaluable for applications requiring rapid energy storage or release. This capability makes them particularly suitable for stabilizing electrical grids against sudden demand spikes or for use in applications like electric vehicles, where quick energy recovery is essential.

4. Environmental Benefits
: Flywheel systems are more environmentally friendly than chemical batteries. They do not rely on hazardous materials for their operation, reducing the risk of pollution and making them a cleaner alternative for energy storage. This attribute aligns well with the growing global emphasis on sustainable and eco-friendly technologies.

How to select right Flywheel Energy Storage supplier?

While evaluating the different suppliers make sure to check the following criteria:

1. Energy Storage Capacity
Evaluate the maximum energy storage capacity of the flywheel system. It's crucial for ensuring that the system can meet your specific energy storage and discharge requirements.

2. Efficiency
Look into the round-trip efficiency of the flywheel system. High efficiency is vital for minimizing energy losses during storage and retrieval processes.

3. Lifespan and Reliability
Consider the expected lifespan and reliability of the flywheel system. A longer lifespan and high reliability reduce long-term costs and ensure consistent performance.

4. Scalability
Assess the system's scalability to ensure that it can be expanded to meet future energy storage needs without significant additional investments.

5. Cost
Analyze both the upfront cost and the operational costs over the system's lifetime. A lower total cost of ownership is preferable.

6. Safety and Environmental Impact
Ensure that the system has a strong safety record and minimal environmental impact. This includes low noise levels and no hazardous materials.

7. Technical Support and Warranty
Verify the availability of technical support and the terms of the warranty. Comprehensive support and warranty coverage can mitigate future operational risks.

8. Compliance with Standards
Check for compliance with relevant industry standards and regulations to ensure safety, reliability, and performance.

What are common B2B Use-Cases for Flywheel Energy Storage?

Flywheel energy storage systems (FESS) offer robust solutions across various industries, harnessing kinetic energy to deliver reliable power with rapid response times. In the renewable energy sector, FESS is pivotal for smoothing out the variability of wind and solar power, ensuring a steady energy supply even during periods of low wind or sunshine. This integration enhances grid stability and allows for a higher penetration of renewable sources into the energy mix. In the manufacturing realm, particularly for industries with high-energy demands and those susceptible to costly downtime caused by power outages, FESS provides an efficient energy backup solution. Its ability to quickly release stored energy ensures that machinery can continue operating without interruption, thereby minimizing production losses and improving overall operational resilience. Data centers, which require uninterrupted power supply for data integrity and operational continuity, benefit significantly from FESS. These systems offer an eco-friendly alternative to traditional UPS (Uninterruptible Power Supply) systems, delivering instantaneous power during outages and mitigating the risk of data loss or corruption. Lastly, the transportation sector, especially in rail systems, utilizes FESS for regenerative braking. Energy captured during braking is stored and then used to power acceleration or contribute back to the grid, enhancing energy efficiency and reducing operational costs. Overall, FESS finds its utility in ensuring energy reliability and efficiency, proving to be a versatile tool across diverse B2B landscapes.

Current Technology Readiness Level (TLR) of Flywheel Energy Storage

As of the current assessment, flywheel energy storage systems (FESS) predominantly occupy a Technology Readiness Level (TRL) ranging between 7 and 9, indicating that these systems have moved beyond the prototype phase and are in various stages of full-scale operational deployment. This advanced TRL status is attributable to significant technological advancements and successful demonstrations of FESS in real-world applications. Technically, flywheels have evolved with the integration of novel materials, such as carbon fiber composites for the rotor, which significantly enhances strength and reduces energy losses through friction. Moreover, magnetic bearings have replaced traditional mechanical bearings, virtually eliminating mechanical contact, thus reducing maintenance requirements and increasing system efficiency. The advancements in power electronics and control systems have further enabled precise control over the charging and discharging processes, optimizing performance and increasing the lifespan of the systems. These technical improvements have culminated in FESS being deployed for a variety of applications, from grid stabilization and energy management for renewable sources to providing uninterrupted power supplies and enhancing the efficiency of industrial processes. The progression to these higher TRLs reflects both the technological maturation of FESS and the growing recognition of their potential to contribute to sustainable energy solutions.

What is the Technology Forecast of Flywheel Energy Storage?

In the short-term, advancements in flywheel energy storage focus on improving materials and design efficiency. Innovations in composite materials, such as carbon fiber, aim to increase the strength and reduce the weight of flywheels, leading to higher energy storage capacities and faster spin rates. Additionally, efforts are being made to enhance the magnetic bearings used to levitate and stabilize the flywheel, reducing friction and energy loss. These improvements are expected to make flywheel systems more compact, efficient, and cost-effective, expanding their applicability in uninterruptible power supplies (UPS) and grid stabilization. Mid-term developments are anticipated to leverage integration with renewable energy sources and smart grid technologies. By improving the interoperability of flywheel systems with solar and wind power installations, energy storage can become more seamless and responsive to fluctuating supply and demand. Advances in control algorithms and power electronics will enable more precise energy management and distribution, optimizing the use of stored energy. This period will likely see an increase in the deployment of flywheel systems in microgrids and remote locations, where their ability to provide reliable, clean energy can significantly impact. Long-term, the focus will shift towards scalability and sustainability. Research into novel materials and manufacturing techniques could lead to breakthroughs in the energy density and lifecycle of flywheels, making them viable for larger-scale energy storage applications. Innovations in system design may allow for modular, scalable installations that can be easily expanded to meet growing energy needs. Additionally, the push for sustainability will drive the development of more environmentally friendly production processes and recycling methods for flywheel components. As these technologies mature, flywheel energy storage could play a critical role in enabling the transition to a more resilient and sustainable energy grid.

Frequently asked questions (FAQ) about Flywheel Energy Storage Companies

Some interesting questions that has been asked about the results you have just received for Flywheel Energy Storage

Based on our calculations related technologies to Flywheel Energy Storage are Water/Ocean Cleaning Technologies, Waste Management, Renewable Energy, Sustainable Fashion, Smart Grid

The most represented industries which are working in Flywheel Energy Storage are Oil, Energy and Gas, Other, Electronics and Electrical engineering, IT, Software and Services, Utilities

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