Published on Tuesday, 30th August 2016 - 3:26PM08/30/2016
J/88 Oceanvolt- Powered By Clean Energy
Imagine sailing on a beautiful day knowing that, even if the wind dies and you're forced to turn on the motor, peace and tranquility are not lost. Every minute sailing, the battery pack is charging, allowing you to later silently power back to the harbor.
"There is no quicker way to break the silence of a beautiful day for sailors than having to turn on the diesel engine," said Jeff Johnstone, President of J/Boats. "Most of our owners will tell you they sail their boats 90% of the time. We would like to improve that other 10% and as well provide a more environmentally-friendly solution for sailors who love the sea."
The Oceanvolt SEA system has clear benefits compared to diesel motors, the most significant being silent operation, no emissions and low maintenance. On a full-charge (7.1 kW) there is enough battery power to go up to 20 nm with no sail or solar power support. Add in both of those elements, and the J/88 can go all day "solar sailing" (the solar version of motor-sailing)- with solar mainsail and solar bimini deployed, the 1,000+ watts of power from the sun enables speeds up 6.5 kts- that's 50-60nm!
"For the past ten years, we have been developing innovative solutions for the electric/hybrid power market in Europe," said Timo Jaakkola, President of Oceanvolt. "Based in Finland, a country renowned for developing leading edge "green" solutions, our company has pioneered the use of electric power in keelboats that range from 15 to 60 ft and ranging from 3kW to 15kW."
The J/88 will feature Oceanvolt's SD6 6kW 48vdc system; which is lightweight (47 kg total) and has full hydro-regeneration capabilities, meaning that you can create energy back to the batteries while sailing using the folding propeller mounted on the sail-drive. Up to 1.0 kW per hour can be generated to recharge the batteries while sailing at 8.5 kts. Unlike diesel engines that require on-going maintenance by qualified mechanics, the Oceanvolt motor has no gears and very few components. In fact, the only moving parts in the entire system are the prop/shaft and the rotor inside the electric motor- just two primary components!
An important feature of the Oceanvolt SEA system is the complete integration of Victron Energy's solar power MPPT charge controllers, shore power inverters, and the hydro-generator power. The Oceanvolt RSI is a state of the art remote diagnostic and service interface that lets you check your boat's status from anywhere. Track all the data about the motor, batteries, generator, solar panels & chargers online in real-time. The Victron Energy Color Control GX provides you all the data logs, the ability to set parameters for alarms, and track the location and monitor your boat in real-time.
The J/88 Oceanvolt also features the latest thin-film solar powered sail technology from France- the innovative SolarClothSystem. This design incorporates super-thin 65 micron film containing high-efficiency photovoltaic cells that will produce 500 watts per hour. The cells are flexible enough to be used on mainsails that get rolled or folded.
The "power bimini" with 8 x 100 watt solar panels is capable of producing up to 650 watts per hour. Recent tests on a partly cloudy day showed the ability to produce over 2.5 kWh from sunrise 8am to sunset 7pm. Here is the graph of that power production curve.
The Oceanvolt SD6 electric motor maximum range "power curve" graph shows the comparison of "battery-only" range to "solar sailing" range. The boat has 4 Valence LiFeMgPO4 batteries of 12.8 vdc x 138 amp hrs that weigh 42 lbs each. That's plenty of range for weekend/ day-sailing!