Watt Knots

Our Thinking

Making electric propulsion work end to end

The components exist. What doesn't exist is the system that ties them together and makes electric propulsion genuinely work for serious, long-range sailors. Here is our thinking on why that is the problem worth solving.

Modern sailing yacht

The core problem

Propulsion, batteries, energy systems. Today they rarely talk to each other.

A yacht's electric motor, battery bank, solar array, charge regulators and house loads each generate and consume energy according to their own logic, with no awareness of what the others are doing. The result is a system that is less than the sum of its parts: energy wasted, range compromised, and fault conditions that no single component supplier can diagnose or own.

Watt Knots uses advanced telemetry and software to tie these systems together, monitoring and optimising how every watt is generated, stored and used across the whole vessel, for safety, comfort and cost. And where the right hardware doesn't exist to make electric propulsion work in the real world, we build it. Software and hardware, co-equal, built in partnership with the leading electric-propulsion manufacturers and forward-thinking boat builders.

"Electric propulsion that goes the distance, not just within sight of the marina."

What we do

Telemetry and software that ties propulsion, battery and energy systems together

Optimise how every watt is generated, stored and used: for safety, comfort and cost

Purpose-built hardware that plugs the gaps where the right component doesn't yet exist

Built in partnership with the leading electric-propulsion manufacturers

Reduce and ultimately eliminate fossil-fuel use at sea, for the most adventurous sailors

The market gap

The component-assembly model is the status quo. It is not good enough.

Specifying an electric vessel today means sourcing a propulsion drive from one supplier, a battery management system from a second, an inverter-charger from a third, a solar charge controller from a fourth,and attempting to make all of them communicate and operate coherently. Each is excellent at its individual function. None was designed to work with the others. That is the predictable consequence of building systems from components rather than building systems as systems. Watt Knots is the missing layer: the software that ties them together, and the hardware that fills the gaps they leave.

No system intelligence

Each component operates in isolation, unaware of what the others are doing. No vendor is responsible for how the system performs as a whole, which means no one optimises it.

Integration burden on the builder

Every yard assembling an electric vessel from disparate suppliers must solve the integration problem themselves: at specification time, during installation, and every time a component is updated.

Gaps the components don't cover

For some problems in real-world electric sailing, the right component simply doesn't exist yet. The gap between what's available and what's needed is where range is lost and where installs fail.

Service complexity

A fault in a multi-vendor installation requires navigating multiple support channels with potentially conflicting diagnoses. A single-system architecture: one supplier, one service interface, removes that entirely.

Safety & Standards

48V sits below the ≤50V safety threshold. That matters for every builder we work with.

The ABYC E-11 2025 supplement and IEC SELV definition both recognise ≤50V DC as safety extra-low voltage. 48V qualifies, removing a significant layer of installation, certification and liability complexity for yards specifying electric propulsion.

Read the standards analysis →

ABYC E-11 (2025)

Safety voltage threshold

≤50V DC

IEC SELV definition

Safety extra-low voltage

≤50V DC

Watt Knots architecture

Below both thresholds by design

48V DC