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Old 13-12-2016, 22:24   #616
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Re: Oceanvolt Hybrid Motor

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Originally Posted by myocean View Post
. . . You need to have todays [sic] technology! . .
No, I don't. I'm sailor with a 48yr old boat. I need to have food, water, a water tight hull, sails and basic navigation equipment.

Today's technology is nice, but not a necessity.
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Old 13-12-2016, 22:44   #617
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Re: Oceanvolt Hybrid Motor

Everything is possible if you put your mind and money to it. Just take a look at this around the world on electric drive.
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Old 14-12-2016, 07:24   #618
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Re: Oceanvolt Hybrid Motor

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Originally Posted by valhalla360 View Post
Suddenly 45' + became 50-56'. Sure a monster cat will use more fuel but...

15kw of solar is going to be upwards of 1000sqft and hugely expensive. At the same time, it will be barely enough to make much more than 2-3kts under bright overhead sunlight. Hope that's not against a decent head wind as those solar panels will be a huge aerodynamic drag.

The generator is going to have to be upgraded to more like 120kw to provide comparable power.

Now you are probably looking at upwards of $50k to upsize the system to the larger boat and even on a 56' cat, 1000sft of space for solar panels will be tough to find if you want to keep it a sailboat. You can buy a lot of $150/day fuel for $50k. (and that's $50k over and above the cost of a standard propulsion system on a new boat)
The real issue for me is not wanting to be in the same anchorage as a floating apartment block.

Jet skis, 15 kW solar arrays, etc and all the other paraphenalia associated with this type of energy hungry beast are not my idea of a lovely anchorage. Noisy and aesthetically undesirable.
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Old 14-12-2016, 07:29   #619
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Re: Oceanvolt Hybrid Motor

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Originally Posted by Adelie View Post
No, I don't. I'm sailor with a 48yr old boat. I need to have food, water, a water tight hull, sails and basic navigation equipment.

Today's technology is nice, but not a necessity.
+1

I want utility then reliability then repairability. Old tech, new tech and sometimes no tech can meet this criteria. We are not camping. A minimum level of comfort, ease of use and utility is assumed.

I also want redundancy in systems and for them to still be useful even in a degraded state. This is where new tech, especially when new in the market, fails to meet our requirements.
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Old 15-12-2016, 04:06   #620
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Re: Oceanvolt Hybrid Motor

http://www.proboat.com/2016/11/lates...ctric-options/

Nigel's write up of a high tech, high dollar set up of a potentially decent hybrid system.

Not a lot of bang per buck, but not a lot of snake oil either. IMHO
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Old 15-12-2016, 04:59   #621
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Re: Oceanvolt Hybrid Motor

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Originally Posted by Cap Erict3 View Post
The Latest in Hybrid Power: Two Twin Electric Options - Professional BoatBuilder Magazine

Nigel's write up of a high tech, high dollar set up of a potentially decent hybrid system.

Not a lot of bang per buck, but not a lot of snake oil either. IMHO
The second system (Hybrid Marine) he describes looks more looks interesting for your less well heeled cruiser.

Here's more information (from the link in Nigel's article).
Seagoing Hybrids - Hybrid Electric Marine Propulsion
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Old 15-12-2016, 08:58   #622
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Re: Oceanvolt Hybrid Motor

I find the parallel systems like Nanni Diesel much more interesting since you truly can have the benefits of both worlds.
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Old 16-12-2016, 22:09   #623
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Re: Oceanvolt Hybrid Motor

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Originally Posted by leftbrainstuff View Post
The real issue for me is not wanting to be in the same anchorage as a floating apartment block.

Jet skis, 15 kW solar arrays, etc and all the other paraphenalia associated with this type of energy hungry beast are not my idea of a lovely anchorage. Noisy and aesthetically undesirable.
Your talking aesthetics not if the system is viable. Old curmudgeons hated fiberglass boats too but they were better than wood, so they took over.

I see no signs of electric propulsion taking over.
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Old 17-12-2016, 14:52   #624
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Re: Oceanvolt Hybrid Motor

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You guys are idiots, and I'm outta here.
Well, I am sorry to see you leave. Your contribution has been key to drive this thread to over 600 posts, which remains mostly on topic!

I sure have learned a lot. My conclusion is that serial hybrids have some drawbacks, and that a parallel hybrid system would be the way to go. Unfortunately not many viable systems exist, and they are expensive.

I contacted Nanni to price out one of their 7 kW systems, and it's an extra $20,000 or so on top of the diesel engine cost (not counting the batteries). Hopefully the technology will mature in the future.

- Fabian
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Old 17-12-2016, 16:39   #625
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Re: Oceanvolt Hybrid Motor

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I contacted Nanni to price out one of their 7 kW systems, and it's an extra $20,000 or so on top of the diesel engine cost (not counting the batteries). Hopefully the technology will mature in the future.

- Fabian

I don't think there is a lot of reason to hope for drastic cost reductions. Motors, controls and Diesel engines driving generators are already mass produced for many industries. So component manufacturing costs are already pretty much at the bottom.

Batteries are one area we can hope for future cost reduction. But if batteries were free a hybrid system would still cost more and would provide no significant fuel savings on an equal HP basis.

IMO it's crazy to think solar or wind power can make up for a tiny diesel, which is what the early adopters are promoting. Most cruisers need a power plant that can run for a few days 24/7 to make miles whenever necessary, often against waves and wind.

Lastly, a hybrid electric system is moving ever further away from KISS.
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Old 19-12-2016, 14:21   #626
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Re: Oceanvolt Hybrid Motor

For the investors:

http://www.sciencealert.com/this-flo...d-on-the-ocean
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Old 19-12-2016, 14:59   #627
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Re: Oceanvolt Hybrid Motor

I like the letter box and running track.
Where do I send my money :

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Old 19-12-2016, 22:26   #628
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Re: Oceanvolt Hybrid Motor

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I like the letter box and running track.
Where do I send my money :
If it has 430sft of solar in the two little circles shown, it's around 100' in diameter. Looks like the mailbox is about 15' high and the door is upwards of 30' high...maybe it's designed for giants?

But hey, it appears they have solved the perpetual motion machine since they motor into the wind on cloudy days using the two 40' tall windmills.
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Old 17-03-2017, 09:37   #629
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Re: Oceanvolt Hybrid Motor

Hi Big Beakie - we are just now trying to decide between the admittedly expensive Ocean Volt electric propulsion and a couple of yanmar 29 diesels for a new Seawind 1260 we're purchasing. I'd really appreciate your insights - we are drawn to the OV system, but can't quite justify the extra $62k....

Many thanks!
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Old 17-03-2017, 20:38   #630
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Re: Oceanvolt Hybrid Motor

Wow! $62000 EXTRA!

No wonder BB is grumpy!
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