The xNode Series

CalWave’s xNode is enabling the Ocean Internet of Things (IoT) by providing power and access to data offshore.

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The xNode™ is the ideal power and data solution for offshore operators. This product series is built on a versatile, adaptable, and resilient ocean-observing platform with built-in power generation. It is lightweight and low cost, resilient for storm survivability, and easily stores, ships, and deploys.

The xNode™ facilitates and improves a range of existing and novel offshore missions. A standard baseline ocean science sensor suite ensures that every mission maximizes data collection and cross-functional interest. The modular scientific payload compartments can be equipped independently and easily configured in the standardized hull. Next to providing access to remote power and data offshore, the xNode™ stands out through innovative features such as a digital twin, on-board edge computing, and a lightweight, compact size enabled by an inflatable hull.

A standard xNode™ can provide reliable power at sea for a range of remote offshore consumers. For example, xNode can easily maintain an AUV docking station to increase remote inspection frequency while reducing vessel costs. In the open ocean, the xNode™ can accommodate any third-party scientific payload, for instance to complement the ARGO fleet of oceanographic profilers, acoustically monitor fish stocks and marine mammals, or measure CO2 above and below the sea surface.

Tech, Specs & Features

CalWave’s xNode utilizes CalWave’s multi-kW PTO platform and is customized towards the needs of end-users in maritime markets, specifically AUV charging with anchored or free-floating mooring options. The xNode is specifically designed for simple transportation and deployment, being more compact, lightweight, and robust than conventional buoys and unmanned surface vehicles.

Scalable Power

From 500W – 5kW

Energy Storage

3kWh+ on board, unlimited subsea


Versatile mooring in any depth


Secure 4G and satellite data links

Configurable Payloads

Coming soon.

Science Packages

Coming soon.

Acoustics (active and passive)

Coming soon.

Edge Computation

Coming soon.

Powering the Blue Economy

Market Verticals


Applications: Monitoring, power, feeding.


Applications: Monitoring, navigational aid.

Security & Defense

Applications: Monitoring, AUV charging.

Disaster Recovery

Applications: Back-up power.


Applications: Inspection, AUV charging.

Ocean Science

Applications: Monitoring, restoration.