The 12 m one-off is a self built and designed sailboat. It is currently sailing in Lake Näsijärvi. The length of the boat is 12m and the waterline length is about 10.5m. The width of the boat is 2.9m. The boat weighs about 7000kg of which 2200kg is keel weight.

“I am very happy with the decision of getting an electric motor to my boat.”
- Osmo Jäkkö, owner/builder of the boat

Why did you choose the Oceanvolt electric motor system?
"I had for a long time been looking at electric motors and requested a couple of quotations from Sweden. When a viable option from Finland came on the market and after seeing how well the system works I decided to go for it!."

How is the system performing?
"I have had no problems with my motor system."

What are the key benefits of the Oceanvolt electric motor system in practice?
I appreciate ecology, the easy placement of the motor, silence and the ease of maintenance."

How much do you sail?
"3 months of the year."

When do you typically use the system?
"In the harbor 5 minutes of using the motor to raise the sails is enough. Sometimes when it is completely calm I use the motor to drive at 2-3 knots speed."

Were you surprised by something with the system?
"I'm not really surprised by anything. I was expecting something like this and all my expectations have been fulfilled."


  • Length: 12m
  • Waterline length: 10.5 m
  • Width: 2.9 m
  • Weight: 7000 kg
  • Electric motor: Oceanvolt SD8.6
  • Electric motor system nominal power: 8.6kW
  • Electric motor system voltage: 48 V
  • Electric motor system weight: 47kg
  • Batteries: AGM lead batteries
  • Battery capacity: 10 kWh
  • Battery weight: 250 kg

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