November 2010 Blog Posts (3)

S/V Intrepid Voyage Log: Okinawa, Japan

Sailing an electric powered boat around the world

shisa By Greg Martin The voyage of Project Intrepid Seas begins on the beautiful subtropical Pacific island of Okinawa. Situated at 26 deg. 3o' N, 127 deg. 45' E, Okinawa is the southern-most prefecture of Japan. Okinawa, the main island in the Ryukyu Archipelago…

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Added by Greg Martin on November 20, 2010 at 6:00pm — No Comments

The Conversion of NB Worcester to Electric Drive

Worcester NB Blog Edwin Osborn has an interesting blog about his experiences converting his Colecraft 38' ex-hire boat to run on electric. An interesting experience with lots of technical details- check it out…

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Added by David Jones on November 4, 2010 at 5:30pm — 1 Comment

Day 30: Planet Solar Continues Round the Globe Challenge | Electric Seas

planetsolar_departs_monaco By Greg Martin On September 27, 2010, Turanor Planet Solar, a solar powered catamaran built in Germany, set off from Monaco on a planned 160 day voyage around the world. The vessel, 31 meters in length and covered with 537 square meters of solar panels is powered entirely by photovoltaic energy. The vessel's solar panels can create…

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Added by Greg Martin on November 1, 2010 at 7:30pm — No Comments

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Peter Thompson's discussion was featured

New Battery Bank for Thoosa 7000-HT

I am looking at replacing the battery bank for my 48 volt Thoosa 7000 system . . . currently I have 8-6volt deep cycle golf cart batteries rated at about 100 Ah . . . at a 25 Amp per hour usage . .  this only gives me about 3.5 knots per hour . . . so to discharge batteries to 50% I only have a range of about 8 miles.Obviously, I would like to extend this . . . I am looking at replacing the current batteries with 4 Northstar SMS AGM 220 or 4 Northstar SMS AGM 400  (220 Ah or 400 Ah…See More
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John Arndt is now a member of Electric Seas
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David Vaughan joined Sally M. Reuther's group
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Oceanvolt Electric Saildrive Group

Oceanvolt Ltd is focused on producing electric propulsion systems for catamarans and sailboats. Each and every part of the system has been specifically designed for electrical use. Compared to combustion engines, this system is silent, simple and reliable. “Less from nature, more for people.” Discover technology that respects both people and nature.See More
Dec 9
David Vaughan posted a discussion

Sail drive option for electric motor install

I am looking for affordable sail drive installation for my catamaran to connect to my electric motors. I am looking for these as an easier option to installing a traditional propeller shaft, struts, packing box, etc.  Anyone know of a good source to purchase to purchase two sail drives and use a verticle attachment for my electric motors? (AC-46's).DaveSee More
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"Has anyone managed to power up a 48v QT10 just using panels..I do not have access to shore power..?"
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Electric Yacht User Group

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Peter Thompson posted a discussion

More questions on new battery bank for Thoosa 7000

So I'm am getting ready to head from here in Hawaii to the South Pacific on my Aries 32  . . . I have a Thoosa 7000 system currently powered by 8- 6 volt, 200 AmpHr Costco lead acid batteries . . . I want to replace these with AGM's (safer, no maintenance and I don't have to try and find distilled water in the South Pacific) . . .Being here in Hawaii . . . the cost for shipping batteries is very high . . .  I have found a good set of traditional style Amstron GC2, 6 volt AGM's . . . (see info…See More
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Clean eMarine Group

Clean eMarine designs & manufactures the Thoosa & Triton inboard electric propulsion systems. See More
Oct 10
Pat Neal posted a discussion

Longest motor to date

Went on my first cruise out this last week end26 km with no wind and a strong tide current dead on the nose for most of the tripmy math might be a little off but it works for me26km / 6.5hr  = 4.07kts avg220 ah @48vdc = 10.5kw310ah bank @ 48vdc = 14880 watts310ah battery bank  x.80 =  248ah for 80% dod220ah/248ah = 88% of available power usedI tried to stay at about 35 amps for the whole trip just to see what would happen and log some time and data if it was on a flood I am thinking 30km or…See More
Oct 8
Capt. Mike posted a discussion

100 Watt Renogy bendable solar panels

I just bought  a Renogy 100 watt bendable panel to add  to my 12 volt house solar array. At four pounds it is four times lighter and smaller than the 75 watt Siemens panels I bought over a decade ago. Not sure if they will hold up as well and I'd be leery to walk on it. But, I'm impressed with it so far. Gave a nice bump up in energy collection and easily movable compared to the rigid panels.:…See More
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Mark Frasca joined Sally M. Reuther's group
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Oceanvolt Electric Saildrive Group

Oceanvolt Ltd is focused on producing electric propulsion systems for catamarans and sailboats. Each and every part of the system has been specifically designed for electrical use. Compared to combustion engines, this system is silent, simple and reliable. “Less from nature, more for people.” Discover technology that respects both people and nature.See More
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Electric Yacht User Group

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Bob Greene joined Greg Martin's group
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Waterbird Cruises is now a member of Electric Seas
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