CorPower Ocean C4 being towed offshore during marine operations

Technology partner · CorPower Ocean

Engineered for the ocean.

From wave motion to electricity: discover the CorPower Ocean technology at the heart of Ngaru’s Aotearoa development pathway.

The C4 system

Motion becomes electricity.

The C4 floats at the surface and moves with the waves. That relative motion drives an internal power take-off, which converts mechanical movement into electricity.

CorPower’s WaveSpring control system is the differentiator: it is designed to amplify useful motion in regular seas and detune the device in storms. Ngaru is developing the local resource, grid, environmental and commercial case for its use in Aotearoa.

CorPower Ocean diagram showing the C4 internal power take-off and pneumatic system

Inside the device

A controlled mechanical system.

The buoy, internal drivetrain and seabed connection operate as one system. CorPower’s public material describes a compact point absorber, a mechanical power take-off and active control that changes the device response between operating and survival conditions.

Point absorberCaptures energy from wave-driven heave at the sea surface.

Power take-offConverts relative linear motion into rotational generation.

WaveSpringTunes response in normal seas and detunes it in extreme conditions.

Technician working inside the CorPower Ocean C4 drivetrain — Inside the C4 · supplied CorPower Ocean image

Full CorPower Ocean wave energy converter system from buoy to seabed anchor — Full system configuration · illustrative CorPower Ocean image

Composite hull manufacturing in CorPower Ocean mobile factory cell — Composite hull manufacturing · technology precedent

Technology milestones

Progress at sea.

2023Grid export

C4 began operating offshore at Aguçadoura, Portugal, and exported electricity to the grid.

18.5 mStorm waves

CorPower reports the C4 operated through verified extreme Atlantic conditions.

2026DNV certificate

DNV issued a Prototype Certificate for the C4 under DNV-SE-0120.

Illustration of a modular wave array alongside offshore wind

From device to wave farm

Modular by design.

CorPower’s CorPack combines wave converters with anchoring, mooring and an electrical collection network. Clusters can be combined into larger farms as a project develops.

Modular arraysWave energy converters grouped to suit individual sites.

Shared systemsConverters, seabed connections, inter-array cabling and a collection hub.

Local deliveryA staged opportunity for ports, marine operations and qualified suppliers.

This describes CorPower’s product architecture. Ngaru project capacity and configuration remain subject to feasibility.

Explore CorPack with CorPower Ocean

Evidence boundary: certification and offshore operation reduce technology risk. They do not establish Aotearoa site yield, consenting, grid connection or project economics. Sources: CorPower Ocean projects and DNV certification announcement.

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