Electric repower sizing, by boat type
Pick the segment that matches your boat. Each guide describes the realistic power, battery, and cabling envelope — and opens the configurator pre-filled with sensible defaults.
30-foot sailboat electric repower
Sized for typical 30-footers around 4–5 t displacement targeting 5–6 knots under power.
35-foot sailboat electric repower
Mid-size cruisers around 6–8 t — the most common repower target on the market.
40-foot sailboat electric repower
Bigger cruisers and offshore boats — where 96 V starts to make real sense.
40-foot catamaran electric propulsion
Twin saildrives, more space for batteries — but you size each side independently.
Small electric launch / day boat
Light displacement under 1.5 t, short days, simple 48 V system.
Trawler yacht electric / hybrid propulsion
Heavier displacement, longer hours — usually a hybrid case rather than pure electric.
At a glance
All segments, side by side
Configurator results for each segment's example boat — 2 hours at full rated power, with reserve. Click any row to open the matching guide.
| Segment | Power | Battery | DC current | Range | |
|---|---|---|---|---|---|
| 30 ft sailboat Monohull · Shaft | 4 kW | 13 kWh | 139 A @ 48 V | 10 nm (2 h at 5 kn) | Guide |
| 35 ft sailboat Monohull · Shaft | 8 kW | 26 kWh | 278 A @ 48 V | 11 nm (2 h at 5.5 kn) | Guide |
| 40 ft sailboat Monohull · Shaft | 15 kW | 48 kWh | 289 A @ 96 V | 12 nm (2 h at 6 kn) | Guide |
| 40 ft catamaran Multihull · Saildrive | 8 kW | 26 kWh | 278 A @ 48 V | 12 nm (2 h at 6 kn) | Guide |
| Electric launch Monohull · Shaft | 2 kW | 6 kWh | 69 A @ 48 V | 10 nm (2 h at 5 kn) | Guide |
| Trawler yacht Monohull · Shaft | 25 kW | 80 kWh | 482 A @ 96 V | 14 nm (2 h at 7 kn) | Guide |
The wizard works for any displacement hull, monohull or multi. Start from scratch with your own dimensions.