I think the (propulsion) batteries are light for this setup. However...you have a genny
But...much depends on your local sailing conditions. Solar and wind are a complete waste of time IMHO on a boat this size. Consider the ratio of drive requirements to potential input.
The only potential use for solar/wind is to top up to full voltage if your main charge sources don't handle it properly.
My $0.02
-Keith
--- In electricboats@yahoogroups.com, "green_on_blue" <bill@...> wrote:
>
>
> New to the Forum but have read through many of the postings. The
> information sharing and candor of the forum members is awesome and much
> appreciated.
>
>
>
> Apologies for the length of the first post ….
>
>
>
> Below is a summary of a project that my wife and I have undertaken to
> convert our 44' sailboat to electric propulsion. We are hoping to
> turn our personal experience into a future business venture that brings
> electric propulsion to more people.
>
>
>
> Last weekend we finished pulling the diesel ICE so we are obviously
> committed but any thoughts for "hurdles to watch out for" or
> fine tuning suggestions are always welcome.
>
>
>
> We are working with a great company – Sally and David at Annapolis
> Hybrid Marine – for the Thoosa electric propulsion motor and have
> also been talking with Charlie Johnson at JTB Marine in St. Pete
> Florida, as he has done top-notch work on our boat in the past when we
> were in Florida.
>
>
>
> Current State
>
> - Hylas 44 Center Cockpit – 22,000 lbs displacement
>
>
>
> - Propulsion
>
> o Yanmar Diesel – 55 HP – Model 4JHTE
>
> o 17" diameter – 3 blade "feathering", Self-Pitching
> Prop
>
> o 105 gallons of fuel
>
>
>
> - Power Sources
>
> o Balmar 12v Alternator
>
> o Shore Power – 110AC – 30A
>
> o NextGen – 5.5kw diesel genset – 110AC
>
> o Victron 12v Charger
>
>
>
> - Power Storage
>
> o House Batteries – Northstar AGM – 400 ah capacity
>
> o Engine Battery
>
> o Windlass Battery
>
>
>
> - Large Power Consumers
>
> o 12v DC Refrig
>
> o 110v AC Refrig
>
> o 110v AC Air Conditioners (2)
>
> o Auto-pilot – Rathyeon (Electric Drive)
>
> o Chartplotter/Radar – Nav Instruments
>
> o Electric Windlass
>
>
>
>
>
> Proposed State – planning to be back in the water this Spring /
> Summer
>
> - Propulsion
>
> o ASMO Marine - Thoosa 12000 and controller
>
> o 21" diameter – 3 blade fixed prop. Have not determined
> pitch yet.
>
>
>
> - Power Sources
>
> o Shore Power – 50A – split for 220AC and 110AC applications
>
> o NextGen – 5.5kw diesel genset – 220AC
>
> o Victron 12v Charger: 110AC input – for house bank
>
> o Zivan 72v Charger: 220AC input – for motor bank
>
> § considering other chargers but this seems likely.
>
>
>
> - Power Storage
>
> o House Batteries – Northstar AGM (2 – parallel) – 400 ah
> capacity
>
> o Motor Batteries – Northstar AGM (6 - series) – 200 ah
> capacity
>
> o Windlass Battery
>
>
>
> - Large Power Consumers
>
> o 12v DC Refrig
>
> o 110v AC Air Conditioner – 1 unit (one removed)
>
> o Auto-pilot – Rathyeon (Electric Drive)
>
> o Chartplotter/Radar – Nav Instruments
>
> o Electric Windlass
>
>
>
> In the future we plan to also add in solar and wind generation but we
> want to see how the systems performs in real life – and allow the
> "cruising kitty" to grow back.
>
>
>
> All thoughts are welcome as we go through this journey.
>
>
>
> We are passionate about the idea of electric versus diesel but also know
> there is a balance that is needed to get more people comfortable with
> the idea. Our hybrid approach with the diesel genset is the balance
> for us in the beginning but we are hopeful that technology and pricing
> will one day allow batteries, solar, etc. to push the genset and diesel
> fuel off the boat altogether.
>
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