Storage Tower
A Mechanical Battery That Makes Wind Power Dispatchable at 4.5¢/kWh
4.5¢/kWh LCOE | +20.7% Higher Yield | 2‑Hour Storage | No Rare Earths 

4.5¢/kWh
Dispatchable LCOE

+20.7% 
Annual yield increase (stormy regions)

6 MWh
Storage capacity

The Storage Tower replaces the conventional gearbox and generator in a wind turbine with a multi‑stage flywheel cascade. It captures wind from 1.5 to 40 m/s (extending cut‑out speed from 25 m/s) and stores 6 MWh for dispatchable delivery on demand. The system uses passive ferrite magnetic levitation and low‑cost materials – concrete, sand, steel – with no rare earths, and passive maglev with passive control.

Technology

How a Storage Tower works: 
the Flywheel Cascade

  • Low‑speed cascade (F1–F4): Progressively larger concrete flywheels absorb gusts, passing accumulated energy up the chain.
  • Gearbox (1:17): Connects the slow cascade to the high‑speed array.
  • High‑speed cascade (H1–Main): Steel and sand‑filled composite flywheels step energy up geometrically. The main rotor (380 t, 16 m radius, 260 RPM) stores 6 MWh.

A flywheel cascade is a series of flywheels of geometrically increasing mass connected by one-way centrifugal clutches where momentum accumulates in each flywheel and is transferred to the next after it reaches a set rpm. ​A flywheel cascade is analogous to starting a bicycle in low gear: small impulses are accumulated stepwise, making the system far more sensitive than a single large flywheel.

The high‑speed flywheels use passive ferrite magnetic bearings. Oversized touchdown bearings and a rim damper provide passive stability at <300 RPM. Power is extracted via an axial flux generator that also operates efficiently at partial RPM.

Simulation 

We have verified the core physics through 168‑hour MSC Adams multi‑body dynamics simulations, demonstrating 76% momentum transfer efficiency in the optimized cascade configuration.

Equal thickness 
Mass: 0.21 : 0.32 : 0.45
Transfer efficiency: 62%

Optimized 
Mass: 0.10 : 0.25 : 0.64
Transfer efficiency: 76%



 

Watch the Video

Why It Matters

Storage Tower Changes Wind Economics

  • Dispatchable wind at 4.5 ¢/kWh – the same cost as erratic onshore wind

  • 50‑year lifetime – no cycle degradation, matches turbine life

  • +20.7% higher annual yield in stormy regions (1.5–40 m/s operating range)

  • 40% lower gearbox maintenance – absorbs 95% of torque spikes 

  • 2‑hour dispatchability – enables peak shaving and grid services

  • No rare earths, no active controls – passive ferrite + sand ballast

Partner with Storage Tower

Storage Tower is a validated, patent‑pending mechanical battery that makes wind power dispatchable at 4.5¢/kWh – competitive with onshore wind, but fully dispatchable. We are now opening selective partnerships to accelerate prototyping, validation, and market entry.

What we offer partners:

  • Proven physics – 168‑hour MSC Adams simulation, 76% cascade efficiency, empirical formula
  • Clear commercial model – 4.5¢/kWh LCOE, +20.7% annual yield, 50‑year lifetime
  • Patent‑protected technology – Gebrauchsmuster filed (EP + PCT pending)
  • Full‑time founder with deep energy certification expertise (DNV GL, TÜV)

We are looking for:

  • Research & testing – Flywheel dynamics, magnetic bearings, composite materials (e.g., Fraunhofer IWES, TU Berlin)
  • Industrial partners – Wind turbine OEMs for field validation and integration
  • Advisors – Business development, energy storage, EIC / Horizon Europe experience

Meet the Team

Marcelo Besser 
Founder,  Project Manager 
  • 20+ years entrepreneurial experience in energy certification (DNV GL, TÜV, Belo Monte)
  • Self‑taught MSC Adams, Ansys, AutoCAD – built Storage Tower from concept to simulation
  • Full‑time on Storage Tower since January 2026
  • Languages: English, German, Portuguese, Spanish
  • https://www.linkedin.com/in/marcelo-besser-57a19725/
Building the Core Team

Storage Tower is transitioning from solo invention to a venture‑backed company. We are now in active discussions with potential co‑founders and advisors who bring complementary expertise in:

-  Large‑scale mechanical systems / flywheel engineering
-  Power electronics and grid integration
-   Wind OEM business development

If you have deep domain experience and want to help build the world’s first dispatchable wind turbine at 4.5¢/kWh, we would like to hear from you.

We are also open to experienced advisors with networks in wind, storage, or EIC/Horizon Europe.
    For detailed engineering data, cost tables, LCOE calculations, and simulation methodology
    ask for the Technical Whitepaper

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