The battery banks are generally configured for 4-10 hours of motoring at the speed of 4-6 knots (about 30 - 40 nautical miles).

Lithium ion batteries will last 10 years if they are handled properly. The basic warranty is for 2 years and can be extended to 5 years.

Oceanvolt electric motor systems typically cost about 20-25% more than comparable diesel systems. However, lower maintenance and fuel consumption (in a hybrid system) costs are considerably lower, so the difference in system cost can be recovered in about 2-3 years. To receive a more precise quote for an Oceanvolt system, please contact Sunwater Marine for a free estimate. Please let us know the specifics of your vessel - model, length, type, etc - and what type of boating you engage in.

Yes! As long as your boat has a bedroom and a bathroom, you will qualify for the tax credit. And, the great news is that the 26% Federal Investment Tax Credit (ITC) for solar was supposed to drop to 22% in 2021 and get phased out completely in 2022. Instead, congress and the President passed a spending bill in December 2020 that kept the credit at 26% and extended it for the next 2 years - 2021 and 2022!

Yes! Sunwater Marine is working with the California Air Resources Board (CARB) Carl Moyer Memorial Air Quality Standards Attainment Program (Carl Moyer Program) for Marine Vessels. This program assists in replacing old diesel engines with cleaner, quieter electric and hybrid systems. Commercial boat owners may be eligible for up to 85% of their replacement costs covered through this program. Sunwater Marine is working with CARB to assist qualified owners of charter sailboats, dive boats, mooring field tenders, water taxis, and other smaller vessels in replacing their old, dirty diesel engines with Oceanvolt electric and hybrid propulsion systems. There are a number of requirements for qualification, and we stand ready to assist in any way we can. For more information about the program, please visit these links: https://www.sandiegocounty.gov/content/dam/sdc/apcd/PDF/Grants/Marine%20Engine%20Repower.pdf http://www.aqmd.gov/home/programs/business/carl-moyer-memorial-air-quality-standards-attainment-(carl-moyer)-program/marine-vessel-projects

For an Oceanvolt system with electric propulsion, hydro-generation, and batteries, please allow a minimum of 3 months. Once an agreement is signed, a payment is made, and the equipment is ordered, it will take a minimum of 10 weeks for it to be shipped from Oceanvolt headquarters in Finland and clear customs in the U.S. The installation process should not take more than 1 to 2 weeks. Solar panel installations will only require 1 to 2 weeks.

You can, but we strongly recommend that it is installed by a certified refit partner, like Sunwater Marine, to ensure that the installation is properly certified by Oceanvolt - so that all warranties will be valid and honored.

A key part of Oceanvolt systems is the Remote Service Interface (RSI.) Each Oceanvolt system can be connected to the internet and monitored in real-time. The technology is not limited to monitoring; Oceanvolt engineers are able to solve at least 90% of potential faults remotely. This is because all components are connected via an industry standard Controller Area Network (CAN) bus, enabling devices to talk to each other and to Oceanvolt HQ securely via the internet. If communications to HQ are dropped temporarily, the system will record all data for up to 4 hours and relay it once a connection is re-established.

The range of a hybrid system with a DC generator and 80 gallons of fuel is around 600-700 nautical miles.

Oceanvolt provides power and propulsion systems in partnership with many top monohull and multihull designers and builders. Many of them are willing to work with Oceanvolt when there is a specific customer request.

YES! Refitting an old diesel system will revitalize your boat, clean up a greasy engine compartment, reduce overall weight and free up space below deck.

Both systems include the propulsion system together with the throttle lever, display, batteries and chargers. An Oceanvolt hybrid system is a complete electric propulsion and power management system that also includes solar panels, generators and the Oceanvolt RSI (remote system interface).

No. Electric engines deliver a higher level of performance, more efficiency (93%), less noise, no maintenance requirements and the ability to regenerate energy while under sail. A DC hybrid has all of these benefits and even better range than with a comparable diesel engine due to higher efficiency. A hybrid system delivers the best of both technologies.

We recommend either SuperB (EU) or Valence (U.S.) Lithium ion batteries with Oceanvolt electric motor systems. AGM batteries and other Lithium batteries can also be used, but with systems that have an 8kW motor or less.

Oceanvolt electric motors deliver significantly more torque than any comparable diesel engine. A 10kW Oceanvolt electric motor easily outperforms, and is more powerful, than a 30hp diesel engine. Typically, max boat speed will be somewhat lower (0.5 - 1.0 kn) than with a comparable diesel engine. But, at the same time, the boat will maintain the speed better in heavy seas and headwinds due to higher torque. Maneuverability is also much better in confined marina spaces.

Battery banks are recharged by hydro-generation while under sail, solar panels, a generator, or shore power.

Managed properly, Lithium ion batteries are perfectly safe and failures are rare. High quality manufacturers use multiple protection mechanisms to avoid problems. Be sure to understand proper battery care procedures in order to maintain the safety and lifespan of your batteries and the effectiveness of your Oceanvolt system.

The Oceanvolt display continuously shows the charge level in real time. Should you run low on battery power, you can use solar panels, or the regeneration function while sailing, or both. Some customers have chosen to have a small portable generator (these can run on LPG or gasoline) on board to recharge the battery bank or to use as a temporary range extender. For larger boats Oceanvolt recommends a hybrid system which includes a permanent DC generator - this enables enjoyment of all of the benefits of the electric motor system without compromising on range.

Using shore power, it can take between 5 and 10 hours to charge the battery bank up to 100% - depending on the shore power source and the size of the charger.

Oceanvolt offers two DC to DC converters - PowerNet and Victron Orion TR. Either of these will charge a 12V DC Lithium ion or AGM house battery from the 48V DC propulsion battery bank.

Hydro-generation creates drag of only 0.1 of a knot at boat speed of 7.0 knots - barely noticeable.

Yes. Hydro-generation is a standard feature with ALL Oceanvolt electric motor systems.

We recommend keeping the battery bank together and in once place. This way, they can be better balanced (electronically) which makes the batteries perform better and last longer.

For propulsion, definitely. In some specific configurations and circumstances, hydro-generation may also be possible - but only if the boat is moving at the rate of at least six knots under sail, and the propeller is not in the turbulence wake of the keel.

The propeller must be taken off before removing the anode. This is to make sure that the contact between the anode and the sail drive is the best possible.

The service and maintenance of Oceanvolt systems is completely different from what you have gotten used to with diesel combustion engines. There is no need for an extensive service network carrying a variety of spare parts, waiting for your parts to arrive, and relying on the varying skill sets of local diesel mechanics. With Oceanvolt electric motor systems, everything is electric and, thanks to the Oceanvolt RSI (Remote Service Interface system), all the system data is online. Since the entire RSI system is connected online at all times via a central module (Victron CCGX), remote diagnostics are continuously monitored. If there is a need to control or service a component, you will be notified.

Usually, the weight of the battery bank is somewhere between 130lb and 350lb in a 30' - 45' sailboat.