Watt&Sea

Watt&Sea, from France, makes hydrogenerators developed for offshore racing and now widely used on cruising sailboats. eMarine carries Watt&Sea Cruising hydrogenerators in 300W and 600W with 24-inch and 38-inch legs, Racing models, 12V and 24V versions, adjustable-pitch and 3-blade propellers, the universal support mount, and 4:1 and 6:1 lifting and lowering hoists.

How to choose a Watt&Sea hydrogenerator

• Cruising or Racing: Cruising models are built for long-term liveaboard use; Racing models are lighter.
• Leg length: 24in or 38in, depending on transom height.
• Power: 300W or 600W, sized to daily consumption on passage.
• Propeller: chosen for typical boat speed.

Is a hydrogenerator worth it for a cruising sailboat?

On ocean passages it often produces more than solar and wind combined. See hydrogenerators for the full lineup.

Can I lift the hydrogenerator out of the water?

Yes. It mounts on a bracket that tilts up; the 4:1 and 6:1 hoists make lifting easier. For at-anchor power, add a wind turbine.