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post #1 of 33 Old 02-27-2012 Thread Starter
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Small Marine Generator?

Because I want to stay out of marinas, the refrigerator has a considerable consumption and my wife will not pass without it, I am looking at ways to be auto-sufficient.

I had a look at solar panels but it seems that what i want is not yet on the market, the wind generators don't work without wind, so the more reasonable choice seems to be a small and high efficient diesel generator.

I had a look at the market and the small I could find was this one:



Well they have lighter models but the wide of this one is unbeatable: 32cms

That means I can just mount it in one of the cabins, behind the engine, on the side, without taking too much space from the cabin.

Paguro 3000 diesel marine generator, 2.8kW of continuous, quiet, reliable, on board power - Advance Yacht Systems Limited

Well, this is nice, but not cheap, this one costs over 6000€ plus VAT.

Baltic Machinery - naudotos ir naujos Japonikos technikos importas-eksportas, pardavimas, remontas, konsultacijos.

Two questions:

Does anybody have experience with these generators?

Do you know or have experience with something smaller or less expensive?
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post #2 of 33 Old 02-27-2012
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$8000 for just the unit plus the labor to install it (haulout, 2 thru-hulls, raw water strainer, etc)...I'm seeing this as a $10,000 project...wow, pricey!!!

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post #3 of 33 Old 02-27-2012
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Cheeck out NextGen. Considerably cheaper. Since their units are belt driven, they may be able to furnish a 50hz model if that's what you need. You'd need to check with them. I put a 5.5 kW unit in my boat (self-installed) for about $5k - including haul out, through hulls, strainers, wiring, etc.
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post #4 of 33 Old 02-27-2012 Thread Starter
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Quote:
Originally Posted by faisond View Post
Cheeck out NextGen. Considerably cheaper. Since their units are belt driven, they may be able to furnish a 50hz model if that's what you need. You'd need to check with them. I put a 5.5 kW unit in my boat (self-installed) for about $5k - including haul out, through hulls, strainers, wiring, etc.
The smaller I can find is this one:

http://www.nextgenerationpower.com/I...t/3-5Specs.pdf

It is much wider: 32.0cm to 45.7. Almost more 14cm and that difference is very important in what concerns the space where I want to put it.

But I agree, it is a big difference in price

Regards

Paulo
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post #5 of 33 Old 02-27-2012
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Silly question? Do you have 12 volt refrigeration? It would be the best route to go with solar and improved battery banks if you need them.
Fair winds!

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post #6 of 33 Old 02-27-2012
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Paulo,

Why the objection to solar ? Taking up too much space perhaps ?

We do have solar (two x 185w panels) plus wind generator and probably more importantly a Balmar Six Series (150ah) alternator in addition to the standard. Portable generator as well but we have never used it. Wind is of course noisy and that is irritating but we only use it when no sun. We also find that we need to run the engine an hour a day for hot water and this tops up the batteries where necessary. We have never gone below 80% battery capacity.

Yes we are running refrigerator 24 hours a day when on board.

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post #7 of 33 Old 02-27-2012
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If you need a generator and are limited on space, consider an engine driven unit. We have a Seapower 5KW unit on our Yanmar. Works great and takes up very little space. I believe they are made by MEPS out of Dallas, TX.

We actually use it very little as our solar and wind generation keep everything running.

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post #8 of 33 Old 02-27-2012
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Why not just go to 6 volts and increase you battery ah in the same or similar space.?. Would take a lot of batteries to equal $8000. For refrigeration that will suffice. Course if you need to run AC or heat at anchor thats a different story

I reinsulated the refrigerator box and al;so increased our ah. Our refrigerator diet is about 55 ah on the hottest of days (95 degrees) in the Chesapeake. We carry 6- 6 volt agm or about 660 ah....or about 330 usable. Adding all the other elctric we use, LED lights (Alpenglow), Charplotter, pumps our daily electrical diet is about 100-110 ah per day. We can do three days with no charging easily.

With Mainsails advice I added a high capactity alternator (120 elctromax) so it will charge 85% of that back up in less than2 hopurs of engine running. I will eventualyy purt a couple of 135 panels on which would add 70 ah per day back in and decrease the deficit.

Dave


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post #9 of 33 Old 02-27-2012 Thread Starter
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Quote:
Originally Posted by deniseO30 View Post
Silly question? Do you have 12 volt refrigeration? It would be the best route to go with solar and improved battery banks if you need them.
Fair winds!
Thanks! I have already an improved battery bank: 4 to a 41ft is a lot. Solar energy is not enough to run a refrigerator, or at least I don't think so.

Regards

Paulo
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post #10 of 33 Old 02-27-2012 Thread Starter
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Quote:
Originally Posted by tdw View Post
Paulo,

Why the objection to solar ? Taking up too much space perhaps ?

We do have solar (two x 185w panels) plus wind generator and probably more importantly a Balmar Six Series (150ah) alternator in addition to the standard. Portable generator as well but we have never used it. Wind is of course noisy and that is irritating but we only use it when no sun. We also find that we need to run the engine an hour a day for hot water and this tops up the batteries where necessary. We have never gone below 80% battery capacity.

Yes we are running refrigerator 24 hours a day when on board.
Not an objection but I don't want to have directional panels. The only way to have decent power with solar energy is with directional panels and I don't want that. Anyway, 370w on solar energy is a lot even if you only get a percentage of that on normal use.

I had two alternators on the other boat and that kind of solved the problem, but on this boat there is no space for two alternators.

I guess you got most of the energy for running the engine one hour a day with a little help from the solar panels.

I am going to revise all electronic of the boat that is badly mounted and waste a lot of energy. The boat has already led illumination but I bet the two refrigerators waste a lot of juice.

Portable generators are dangerous in a boat and has I don't have the possibility of having two alternators, I think the best solution would be a small efficient marine generator. They waste very little (1l/h) and running an hour a day would be more than enough for everything.

Regards

Paulo
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