Friday, August 30, 2019

Re: [Electric Boats] Greetings! Catalina 30 owner here, considering an electric repower

 

Seems like 18 sq ft isn't too crazy. I was thinking of mounting two rigid panels off the stern on either side of the swim ladder, obviously with some bracing & so on. two 3x4 panels would get well past 18 sq. ft. Having a flexible panel I could leave on the foredeck or on the dodger while on the mooring would be a good supplelment.

Sorry to hear about having to replace the battery bank. I would plan on trickle charging over the winter; the boat would be near a power source.


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Posted by: jasonsewall@gmail.com
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Re: [Electric Boats] Greetings! Catalina 30 owner here, considering an electric repower

 

Interesting. Where do you stick the panels? How large are they?

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Posted by: jasonsewall@gmail.com
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Thursday, August 29, 2019

[Electric Boats] Re: Greetings! Catalina 30 owner here, considering an electric repower

 

Hi  I am interested in your note about needing 18 Sq Ft of solar panels for charging a 48 volt system.  Can you elaborate on this.  How many watts are you thinking.  Are you charging the bank at 48 volts or each 12 volt battery separately.

Rgds  Peter

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Posted by: pcbeckett@gmail.com
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Re: [Electric Boats] Greetings! Catalina 30 owner here, considering an electric repower

 

Nice rig!
What size bank do you have?
Also, do you have any recomendations for a waterproof 48v amp meter to mount in the cockpit?


On Thu, Aug 29, 2019, 6:53 AM bob jennings sabre281@yahoo.com [electricboats] <electricboats@yahoogroups.com> wrote:
 






On Thu, Aug 29, 2019 at 9:41 AM, bob jennings
I have a 10 kw Thunderstruck motor on my 28' Sabre. I keep the propulsion battery bank charged with 2-24 volt, 100 watt panels wired in series. I set the system up with a manual transfer switch to charge the 12 volt house bank also. I have beat the snot out of the propulsion bank going back up the Penobscot River. The solar takes a couple of sunny days to replenish the bank but it works.

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Posted by: John McDonnell <jack21322@gmail.com>
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[Electric Boats] Re: Greetings! Catalina 30 owner here, considering an electric repower

 

I think the comment on lithium being worse for intermittent charging is incorrect. Lead needs to be kept close to fully charged to lessen degradation. Lithium is not affected by being left at less than full charge.  

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Posted by: acsarfkram@yahoo.com
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Re: [Electric Boats] Greetings! Catalina 30 owner here, considering an electric repower

 






On Thu, Aug 29, 2019 at 9:41 AM, bob jennings
<sabre281@yahoo.com> wrote:
I have a 10 kw Thunderstruck motor on my 28' Sabre. I keep the propulsion battery bank charged with 2-24 volt, 100 watt panels wired in series. I set the system up with a manual transfer switch to charge the 12 volt house bank also. I have beat the snot out of the propulsion bank going back up the Penobscot River. The solar takes a couple of sunny days to replenish the bank but it works.

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Posted by: bob jennings <sabre281@yahoo.com>
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Re: [Electric Boats] Greetings! Catalina 30 owner here, considering an electric repower

 

I have a 10 kw Thunderstruck motor on my 28' Sabre. I keep the propulsion battery bank charged with 2-24 volt, 100 watt panels wired in series. I set the system up with a manual transfer switch to charge the 12 volt house bank also. I have beat the snot out of the propulsion bank going back up the Penobscot River. The solar takes a couple of sunny days to replenish the bank but it works.

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Posted by: bob jennings <sabre281@yahoo.com>
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Wednesday, August 28, 2019

[Electric Boats] Re: Greetings! Catalina 30 owner here, considering an electric repow

 

Erich,
LiFePo4 batteries don't need to be charged after you run them down - unlike lead acid. You can leave them at whatever SOC you are left with - although they are reported to prefer 40-60 percent SOC if left for any length of time.
They just don't lose charge while resting,
Cheers
Graham
4S 700ahr House, 2 x 16S 700aht traction banks. Both Thundersky.

Sent from my iPad

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Posted by: Graham McGlashan <grahammcglashan@gmail.com>
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Re: [Electric Boats] Greetings! Catalina 30 owner here, considering an electric repower

 

I'm getting away with 16 sq feet of solar for my 48v group 31 agm bank on my ericson 29. It keeps it topped off, but I mostly sail. Wind and solar would be ideal,  also still working on wind. To get the real estate I built a stainless steel rack overhead mounted to the transom.

On Wed, Aug 28, 2019, 7:16 AM erichmadison <no_reply@yahoogroups.com> wrote:
 

I have an Electric Yacht system in my Victoria 26, similar mooring situation as you. Just so you're aware, if you're running a 48v system, you'll need a fair amount of solar panel real estate--about 18 sq ft--to charge the bank--not an option in my opinion. Your best bet is a wind turbine, and I have yet to go that route. Instead, I tend to pull my boat off the mooring and dock it for a 6 to 9 hours while it's hooked up to a portable generator. 


AGM batteries need to be maintained (topped off)--I've had to replace mine once already (after 4 years). I'm not sure there's a better option. Lithium would be even worse in regards to the intermittent charging schedule.

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Posted by: John McDonnell <jack21322@gmail.com>
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Tuesday, August 27, 2019

Re: [Electric Boats] Greetings! Catalina 30 owner here, considering an electric repower

 

I have an Electric Yacht system in my Victoria 26, similar mooring situation as you. Just so you're aware, if you're running a 48v system, you'll need a fair amount of solar panel real estate--about 18 sq ft--to charge the bank--not an option in my opinion. Your best bet is a wind turbine, and I have yet to go that route. Instead, I tend to pull my boat off the mooring and dock it for a 6 to 9 hours while it's hooked up to a portable generator. 


AGM batteries need to be maintained (topped off)--I've had to replace mine once already (after 4 years). I'm not sure there's a better option. Lithium would be even worse in regards to the intermittent charging schedule.

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Re: [Electric Boats] Greetings! Catalina 30 owner here, considering an electric repower

 

I have an electric engine in my 1983 Catalina 30 which I installed 2 years ago. I decided to do this when faced with the similar issue of needing a replacement for my seized Diesel engine. I am in Rockland harbor and would love to show you what I have. 

Pcbeckett@gmail. Com

Rgds Peter

On Aug 26, 2019, at 11:46 AM, GNHBus@aol.com [electricboats] <electricboats@yahoogroups.com> wrote:

 

Look for Captn Randy at Spruce Point, Booth Bay, he is electric

George




On Monday, August 26, 2019 jasonsewall <electricboats@yahoogroups.com> wrote:

 

Hello electric boaters,


My wife and I bought a 1982 Catalina 30 about 4 years ago and we have had a fine time sailing it. Alas, around a year ago, the original Universal 5411 diesel engine broke down, and after what seems a very long time of looking at it, the mechanic says it's beyond saving. 


A used replacement diesel would cost $3k, not counting labor & incidentals, and a new one is over $6k. I'm not thrilled at putting in another raw water cooled noisy thing at such a premium, and we're seriously considering an electric repower for the next season.


We live in Maine, work full-time, and have a young family---we are day sailors for the foreseeable future.  We generally have used the engine to power in and out of the harbor and get canvas up. Of course, a bit of extra power for the doldrums & emergencies is a good idea.


We have a mooring (shore power is not something we have regular access to) and were thinking of a 10kW brushless DC motor & controller, etc, a ~10kw battery bank (probably AGM), and some solar panels to mount off the stern.  What research I've done suggests that this would be enough to get a few hours of power at ~3-4 kts every few days, which seems adequate.


So, I'm looking for advice if this sounds like a good plan, and for some tips about the size & type of solar panels we should consider. I'm looking at the 10kw brushless kit on Thunderstruck. I'd really prefer to keep the parts cost at $5k-6k, which seems like it might be possible.


I'm also curious about hydrogenerators; our mooring sits in an estuary that experiences strong currents at midtide and I'm curious if the prop as  genset or a secondary hydro turbine would be a wise supplement to the solar.


If we go this route, I would probably do some of the installation work under the guidance of a knowledgeable boat mechanic.


Thanks and I look forward to learning a lot from you folks.

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Posted by: peter beckett <pcbeckett@gmail.com>
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Monday, August 26, 2019

Re: [Electric Boats] Industrial motor controller

 

Hi,

Thanks for the link. I like that controller. Looks a bit better than what I've been looking at:

https://www.4qd.co.uk/product/pro-150/

John

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Posted by: gotz2sail@yahoo.com
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RE: [Electric Boats] Greetings! Catalina 30 owner here, considering an electric repower

 

Look for Captn Randy at Spruce Point, Booth Bay, he is electric

George




On Monday, August 26, 2019 jasonsewall <electricboats@yahoogroups.com> wrote:

 

Hello electric boaters,


My wife and I bought a 1982 Catalina 30 about 4 years ago and we have had a fine time sailing it. Alas, around a year ago, the original Universal 5411 diesel engine broke down, and after what seems a very long time of looking at it, the mechanic says it's beyond saving. 


A used replacement diesel would cost $3k, not counting labor & incidentals, and a new one is over $6k. I'm not thrilled at putting in another raw water cooled noisy thing at such a premium, and we're seriously considering an electric repower for the next season.


We live in Maine, work full-time, and have a young family---we are day sailors for the foreseeable future.  We generally have used the engine to power in and out of the harbor and get canvas up. Of course, a bit of extra power for the doldrums & emergencies is a good idea.


We have a mooring (shore power is not something we have regular access to) and were thinking of a 10kW brushless DC motor & controller, etc, a ~10kw battery bank (probably AGM), and some solar panels to mount off the stern.  What research I've done suggests that this would be enough to get a few hours of power at ~3-4 kts every few days, which seems adequate.


So, I'm looking for advice if this sounds like a good plan, and for some tips about the size & type of solar panels we should consider. I'm looking at the 10kw brushless kit on Thunderstruck. I'd really prefer to keep the parts cost at $5k-6k, which seems like it might be possible.


I'm also curious about hydrogenerators; our mooring sits in an estuary that experiences strong currents at midtide and I'm curious if the prop as  genset or a secondary hydro turbine would be a wise supplement to the solar.


If we go this route, I would probably do some of the installation work under the guidance of a knowledgeable boat mechanic.


Thanks and I look forward to learning a lot from you folks.

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Posted by: GNHBus@aol.com
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Re: [Electric Boats] Industrial motor controller

 

Gotz2ssail,
Check out Advanced Motor Controllers. I've got 4 on board with a 144vDC system and am very pleased with them.

Steve in Solomons MD
Lagoon 410 S2E

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Posted by: "sdolan scannersllc.com" <sdolan@scannersllc.com>
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Re: [Electric Boats] Re: Unrepairable Curtis Controller

 

Thank you for the suggestion Gary but it was Flight Systems that could not repair my controller.

On Sun, Aug 25, 2019 at 11:49 AM Gary@outercapesailing.com [electricboats] <electricboats@yahoogroups.com> wrote:
 

You don't say which repair facility you used.  Flight Systems Industrial Products has always been able to fix every controller I have sent them, including ones that were blown up:
http://www.fsip.biz/

They are the best!

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Posted by: Dennis Malloy <dtmalloy49@gmail.com>
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