👋 Hi! We are Spinnergy

Revolutionising High-Power Energy Storage With Flywheel Innovation.

Building India’s most advanced flywheel system for instant, reliable, and sustainable power.

The Problem

India’s critical infrastructure such as defence, electric mobility, and renewable power, demands energy systems that are not only fast and reliable, but also durable and maintenance-free. Conventional battery-based storage struggles to meet these expectations, with limitations such as short cycle life, thermal safety issues, long charging times, and high upkeep. These challenges are compounded by India’s reliance on imported storage technologies, restricting scalability, resilience, and long-term self-reliance in strategic sectors.

Key Challenges :
• Short battery life cycles
• Thermal and fire safety risks
• Slow energy response
• High system maintenance
• Heavy import dependency

The Solution

Spinnergy addresses these challenges with next-generation flywheel-based energy storage systems engineered for high-power, instant-response, and near-infinite cycle life. Designed to withstand extreme usage with minimal degradation, the system delivers rapid bursts of energy in milliseconds and operates reliably even in demanding conditions. Built with precision materials and advanced control electronics, the architecture is modular, scalable, and optimized for long operational life, while being entirely developed and manufactured in India.

Spinnergy Advantages :
• Instant power delivery
• Infinite cycle life
• No thermal runaway
• Minimal maintenance
• Vision of Made-in-India Technology

The Technology

Spinnergy’s system is built around a high-speed motor-generator coupled with a precision-balanced rotating mass that stores energy kinetically. Engineered using advanced materials and intelligent control systems, it delivers exceptional performance under demanding, high-power applications. The architecture is designed to ensure rapid response, long operating life, and minimal maintenance, all within a compact, modular platform scalable from auxiliary use cases to full-scale deployment.

Our Distinguishing Features

• Instant Power Delivery – Rapid response time in the range of milliseconds, ideal for pulse loads and critical systems

• High-Speed Operation – Rotor speeds up to 20,000 RPM, enabling high energy and power density in compact form

• Ultra-Long Cycle Life – Capable of millions of cycles with no performance degradation over time

• Compact & Lightweight Design – Built with carbon-fiber composite rotors for superior strength-to-weight ratio

• Magnetic Bearing System – Frictionless, wear-free support system for zero-contact operation and minimal maintenance

• High-Efficiency Motor-Generator – Integrated PMSM machine for smooth energy transfer across a wide speed range

• SiC-Based Power Electronics – Advanced converters using silicon carbide for high-frequency, low-loss switching

• Thermal & Environmental Safety – No combustion risk, no thermal runaway, suitable for high-vibration or isolated locations

• Scalable Modular Platform – Configurable for various outputs and adaptable across use cases

• Indigenous & Field-Oriented Design – Engineered in India for mission-critical reliability, maintainability, and deployment flexibility

Main Components

The Technology

System Architecture & Core Technologies

• High-speed carbon-fiber rotor (>20,000 RPM) for dense and durable energy storage
• Active magnetic bearing system for frictionless, wear-free operation.
• Integrated PMSM motor-generator for seamless bidirectional energy transfer.
• SiC-based power electronics for efficient, low-loss conversion.
• Real-time control and diagnostics for intelligent operation.

Performance, Reliability & Integration

• Instant response time (milliseconds) for high-power applications.
• Ultra-long cycle life with no degradation or thermal runaway risks.
• Modular architecture scalable from 20 kW to 200+ kW with storage capacity between 1–50 MJ.
• Engineered for critical sectors: defence, mobility, infrastructure.
• Fully developed and manufactured in India.

Application and Market Opportunities

Market Outlook:
• Global FESS market > USD 1.5 billion, with rising demand in renewables and defense.
• CAGR projected at ~4–5% through 2035 for high-cycle, low-maintenance solutions.
• India’s energy storage market expected to cross USD 21 billion by 2030, led by EV, renewables, and defense modernization.

Defence & Aerospace Power Systems

Power buffering for radar systems, directed energy, and mobile field units

Electric Vehicle Infrastructure

Supports fast-charging stations, voltage stabilization, and grid smoothing

Urban Transport

Captures and reuses regenerative braking energy in metro and rail networks

Industrial UPS & Data Centres

Provides instant backup and power conditioning for mission-critical loads

Remote Microgrids

Ideal for islanded or off-grid systems with intermittent renewable sources

Heavy Machinery & Pumps

Load-leveling and burst power for cranes, compressors, and oil & gas operations

Application and Market Opportunities

Market Outlook:
Flywheel-based energy storage is gaining momentum globally as industries seek faster, longer-lasting, and low-maintenance alternatives to batteries.
• Global FESS market is valued at over USD 1.5 billion, with increasing adoption in renewable energy, industrial systems, and defence applications.
• The market is expected to grow at a CAGR of 4–5% through 2035, driven by demand for high-cycle and maintenance-free storage.
• India’s energy storage market is projected to exceed USD 21 billion by 2030, led by growth in EV charging, clean energy, and critical infrastructure.

Spinnergy is positioned to serve this demand with indigenous flywheel technology that meets the performance and reliability needs of tomorrow’s energy systems.

Sources: IEA Energy Storage Reports, IESA India Market Forecast, Global Flywheel Energy Storage Market.

Defence & Aerospace Power Systems

Power buffering for radar systems, directed energy, and mobile field units

Electric Vehicle Infrastructure

Supports fast-charging stations, voltage stabilization, and grid smoothing

Urban Transport

Captures and reuses regenerative braking energy in metro and rail networks

Industrial UPS & Data Centres

Provides instant backup and power conditioning for mission-critical loads

Remote Microgrids

Ideal for islanded or off-grid systems with intermittent renewable sources

Heavy Machinery & Pumps

Load-leveling and burst power for cranes, compressors, and oil & gas operations

Deployment Options

Spinnergy offers a modular architecture, enabling both large-scale and auxiliary deployments. Each unit is designed to be integration-ready, rugged, and field-tested for real-world performance. :

Standalone Systems

Engineered for high-power, long-duration applications starting at 100+ kW with energy capacities from 5 MJ to 50 MJ, suitable for defense, infrastructure, and industrial use.

Auxiliary Boost Units

Compact flywheel modules in the 20–50 kW range, with energy capacity from 1 MJ to 5 MJ, designed to enhance delivery in backup, mobile, or hybrid systems.tems .

Three Phase Section

Business Model

Phase 1

Technology Prototype

Develop a working prototype to demonstrate core system performance, funded through sponsored project and IIT Guwahati incubation support.

Validate key subsystems: rotor dynamics, magnetic bearings, power electronics, and controls

File IP for indigenous rotor design, thermal management, and converter architecture

Establish initial testing and integration setup through academic and technical partnerships

Phase 2

Pilot Deployments & Partnerships

Deploy pilot units in industrial, transport, and EV infrastructure applications.

Engage with early adopters across metro rail, microgrid operators, and energy OEMs.

Build a network of component vendors, local fabricators, and assembly partners.

Refine system design for manufacturability and field-readiness.

Phase 3

Commercialisation & Scale Up

Standardize product variants: 20 kW, 50 kW, and 150 kW modular systems.

Offer full-stack solutions: flywheel units, power interface, and remote monitoring suite.

Enable OEM licensing, system integration, and long-term AMC services.

Target high-growth segments: EV fast-charging, backup power, defence, and smart grids.

Features Grid Section

Unique Value Proposition

High-Speed, Maintenance-Free Design

Powered by a high-speed permanent magnet machine with electromagnetic bearings, the system operates frictionlessly, minimizing mechanical losses and eliminating routine wear and maintenance.

Smart, Efficient Power Conversion

Integrates SiC-based bidirectional power electronics with advanced control logic, enabling rapid energy transfer, high efficiency, and real-time system diagnostics.

Lightweight, High-Energy Rotor Technology

The carbon-fiber composite flywheel delivers a superior strength-to-weight ratio and dynamic stability, achieving operational speeds exceeding 20,000 RPM with minimal losses.

Sustainable, Indigenous, & Scalable Solution

Completely Made-in-India system aligned with Atmanirbhar Bharat and Net-Zero initiatives. Modular from energy capacity of 1 MJ to 50 MJ with discharge time ranging from 30 ms to 2 s, and motor power rating of 20–150+ kW, serving defence, transport, and renewable sectors.