A 30 year battery for the many.

Flywheel energy storage reimagined as infrastructure: safer, cheaper, and built to last longer than any lithium battery ever could.

30yr
Asset Lifespan
30%
Cheaper than BaSS
Zero
Upfront cost

We picture a world where energy storage is as universal and scalable as the internet. A future where energy is accessible, affordable, and abundant. Everywhere, for everyone.

We are not saving the world. We are making your world better. One community, one building, one home at a time.

Stuck in an energy Groundhog Day.

01 Unpredictable Crisis

Sleepwalking from one crisis to the next

Urgent interventions and short term fixes are the only response. Nothing is built to last.

04 Inequality & Liability

The vulnerable pay more and get less

If you can afford it, install a battery. It will pay for itself. If you can't? Tough. That's the system we are breaking.

WE ARE STUCK IN THE LOOP
02 Band Aid Policies

Temporary fixes increase complexity

Policy change adds layers of complexity, widening the inequality gap rather than closing it.

03 The Volatility Trap

A small number of players capture the gains

A broken market rewards instability, not resilience. Every day, ordinary people are locked out.

A two stage approach to better finance.

The flywheel isn't just smarter technology. It enables an entirely different financial model. Longer asset life means better loan terms, residual value, and lower costs for end users.

Stage 1: Smarter Infrastructure
30
YEAR ASSET

Not a battery. It's infrastructure storage. No degradation, no replacement cycles, no fire risk. Built once, maintained minimally, operated for three decades.

No Degradation Zero Fire Risk 100% Recyclable
Stage 2: Smarter Finance

Infrastructure grade financing unlocked

A 30 year asset with residual value changes how banks and funders see storage. This opens long term loan structures unavailable to lithium systems.

Long Term Loans
30yr terms
+
Residual Value
Retained
=
Infrastructure Finance
Lower cost

Spin. Store. Release.

Simple mechanics. Proven physics. 30 year life. The flywheel stores energy as kinetic momentum. No chemistry, no degradation, no fire.

1
MOTOR ↓ energy in
SPIN

Electricity powers a motor connected to the rotor. The disk accelerates up to operating speed.

stores
2
VACUUM N S
STORE

Mass spins in a hard vacuum, magnetically levitated. Near-zero friction. Energy held as kinetic momentum indefinitely.

releases
3
GEN ↑ power out
RELEASE

The generator converts rotational energy back to electricity on demand. Millisecond response. No chemistry, no heat, no wear.

Why Girostor wins.

50% of the mass for the same energy
Radical rotor geometry redesigned from first principles, not iterating on legacy approaches.
Ruthlessly efficient motor
Purpose-built motor generator architecture minimises every conversion loss in the system.
No rare earth materials
No supply chain vulnerability, no geopolitical exposure, no end of life disposal problem.
100% recyclable
Steel, carbon fibre, and standard electrical components. Circular by design from day one.
First principles thinking
Rebuilt from the ground up. Differentiated IP across 6 identified innovation areas.
Recognised breakthrough technology
Flywheels named a Time Magazine Best Invention of 2024. The category is wide open. No clear winner yet.

Storage as a Service.

Girostor's STaaS model delivers storage as a contracted service, not a capital purchase. Over a 30 year horizon, the financial case versus lithium (BaSS) is decisive.

Dimension
BaSS: Battery as a Service
STaaS: Girostor
Performance over time
Degrades year on year
No degradation
Fire & safety risk
Increases as cells age
Zero fire risk
Asset replacements over 30yr
Replaced three times
No replacements
End of life
Complex, costly recycling
Easy to recycle
Residual value
None
High residual value
Finance terms available
Short cycle, high rate
Infrastructure grade
STaaS delivers storage
30% cheaper than BaSS.

Profitable on energy margin alone. Grid services and negative pricing revenues are pure upside.

30%
Cost saving vs lithium STaaS

97 million homes. One clear opportunity.

Every figure is derived from actual qualifying criteria: electricity price, housing type, and grid access. We only target markets where the economics already work today.

Total Addressable Market
97M
homes in Europe & the Americas

Qualifying criteria: electricity price ≥ £0.22/kWh · private garden installation · simple grid connection · VPP market access

Full Market Potential
£47B+
annual recurring revenue

Full capture of the qualifying addressable market across all eligible geographies, at current economics, without future price improvement.

We only target markets where the economics already work today.

The change is already here.

Four converging forces are making energy storage not just attractive but necessary. Girostor is the only long duration storage solution engineered to capture all four simultaneously.

Volatility

Wholesale price swings are widening. Every volatility spike is a revenue opportunity for a grid-connected flywheel.

🔌
Electrification

Heat pumps, EVs, and electrified industry are compressing grid capacity. Storage is no longer optional.

📈
Demand

Energy demand is growing faster than new generation can be built. Distributed storage bridges the gap immediately.

🏛️
Policy Shift

Flexibility markets, capacity payments, and pro storage regulation are accelerating across every key market.

Aligned with 4 of the UK's 6 strategic growth sectors.

Girostor sits at the intersection of the government's own industrial priorities, making it a natural candidate for grant funding, procurement, and public-private partnership.

☀️Clean Energy
⚙️Advanced Manufacturing
💻Digital & AI
🛡️Defence

De risked technology. Clear path to prototype.

Validated by the MTC

Independent engineering validation by the Manufacturing Technology Centre, part of the High Value Manufacturing Catapult network, supported by Innovate UK.

MTC HVM Catapult Innovate UK
⚙️

Working Prototype Built

We have a working prototype demonstrating our motor concept, proving the core physics and electrical architecture at bench scale. TRL 4 reached with engineering partner Twocan.

TRL 4 Motor Demonstrated
🔐

IP Strategy in Progress

Six innovation areas identified spanning rotor design, motor efficiency, and system integration. Patent filings planned following TRL 6 validation.

6 Innovation Areas Filing Planned
TRL 4
Current Technology Readiness Level
6 mo
To deployable 2–5 MJ prototype
18 mo
To full residential-ready product
£0
Revenue required to begin. Prototype generates early income

Built to deliver, not just design.

We are not researchers. We are builders of deployable infrastructure, with track records in the energy systems, engineering, and operational environments where Girostor must succeed.

CEO & Co-Founder

Commercial & Infrastructure Leadership

15+ years delivering energy infrastructure across EV charging, renewables, and grid systems
Direct experience leading commercial deployment of real world energy projects at scale
Deep operational knowledge of DNOs, public sector procurement, and energy market structures
Built inside the energy system. Saw first hand where batteries fail commercially
CTO & Co-Founder

Engineering & Systems Execution

Aerospace engineering background. Systems thinking at the component and architecture level
Experienced operator across multiple ventures with a proven track record of rapid iteration
Advisory track record across smart infrastructure and digital systems projects
Defence sector exposure. Understanding of demanding performance and reliability standards

Why we win.

01
Built inside the energy system We didn't design this from a lab. We designed it from inside the infrastructure we are replacing.
02
We saw where batteries fail commercially Every design decision in Girostor addresses a real world failure mode we encountered directly.
03
Designed for deployment constraints Not optimised for a lab. Optimised for the planning, finance, and operational realities of real projects.
04
Infrastructure experience + execution speed The combination of deep sector knowledge and proven ability to build is rare. We have both.

We are raising.

Please get in touch for more information.