HEPS technology guide

Modular rotating towers

HEPS rotating tower concepts propose turning the complete tower and mounted equipment at a base bearing and rail-supported roller system. Cylindrical and symmetric biconvex forms use stacked structural modules. The architecture differs from conventional top-nacelle yaw; foundations, restraints, bearings and load capacity require structural validation.

Development overview · Reviewed October 30, 2026

Original design reference

HEPS rotating tower render · support ring and braced baseOriginal ↗

HEPS / 04Original design record

Yaw at the base

Rotating tower

The patented architecture uses a broad tower body, base support and roller-drive arrangements. The tower and nacelle yaw together rather than relying on conventional nacelle rotation.

What we will establish

Foundation and bearing design, structural and dynamic loads, fatigue, yaw power and lifecycle economics.

Development route

A dedicated structural development program before an integrated full-scale demonstration.

Examine the patent record →

Inspect the 3D assembly ↗

Questions about this concept

How is base rotation different from conventional yaw?

A conventional turbine normally turns its nacelle at the tower top. The HEPS concept turns the tower and mounted equipment together at the base. The comparison illustrates mechanisms rather than certified load capacity.

What does the modular tower model show?

Stacked ring frames, columns and bracing separate to illustrate assembly. Actual shipping envelopes, lifting methods, connections, fatigue behavior and foundation requirements remain to be engineered.

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