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 Post subject: OutBack: Solar Boat on a big pond
PostPosted: Fri Jun 27, 2003 5:01 pm GMT EthGMT 
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Goldfish
Goldfish

Joined: Fri Jan 31, 2003 2:01 am GMT EstGMT
Posts: 97
Location: Long Island, NY
Hi All,

I am not sure which section to post this in but since one of the key items is a MX-60 I thought I would post here.

A friend of mine left 2 days ago on a journey to go all the way around Long Island NY in a solar powered boat. The boat is 24 feet long and has 6 125W panels as an awning on top to charge a 60 volt battery bank of golf cart batteries. The MX-60 charge controller provides a substantial boost in currentto the batteries. Late this hot and hazy afternoon, the array was putting out 4 amps at 91 volts and the MX-60 turned that into 6 amps at 63 volts into the battery. [img]images/smiles/icon_smile.gif[/img]

We had tremendous problems with spikes from the motor controller but after some filtering, the boat is running like a dream. Over 6.5Kts top speed and 3 to 4 Kts cruise. [img]images/smiles/icon_cool.gif[/img]

Ron


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 Post subject: Solar Boat on a big pond
PostPosted: Mon Jun 30, 2003 9:09 am GMT EthGMT 
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Goldfish
Goldfish

Joined: Fri Jan 31, 2003 2:01 am GMT EstGMT
Posts: 97
Location: Long Island, NY
The Solar Boat is now over half way around Long Island.


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 Post subject: Solar Boat on a big pond
PostPosted: Tue Jul 08, 2003 11:06 am GMT EthGMT 
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Catfish
Catfish
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Joined: Mon Oct 07, 2002 1:01 am GMT EthGMT
Posts: 47
Location: Campbell, CA
Those are impressive efficiency numbers - 104%. Perhaps you rounded down on one side and rounded up on the other ?


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 Post subject: Solar Boat on a big pond
PostPosted: Wed Jul 09, 2003 12:30 am GMT EthGMT 
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Goldfish
Goldfish

Joined: Fri Jan 31, 2003 2:01 am GMT EstGMT
Posts: 97
Location: Long Island, NY
Hi Larry,

Gary finished his trip around Long Island Sunday. [img]images/smiles/icon_cool.gif[/img]

Those figures were from the front panel of the charge controller which is in whole amps so there is a little round off.

With more carefull measurements with a Fluke 189 we got 94.3% at around 500W into the 60V battery bank. [img]images/smiles/icon_cool.gif[/img]


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 Post subject: Solar Boat on a big pond
PostPosted: Tue Jul 15, 2003 7:32 am GMT EthGMT 
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Minnow
Minnow

Joined: Sun Nov 03, 2002 2:01 am GMT ErdGMT
Posts: 20
Location: Maine
That's pretty impressive performance - any pictures to admire?


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 Post subject: Solar Boat on a big pond
PostPosted: Tue Jul 15, 2003 4:23 pm GMT EthGMT 
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Goldfish
Goldfish

Joined: Fri Jan 31, 2003 2:01 am GMT EstGMT
Posts: 97
Location: Long Island, NY
http://www.gosolar.com/press/release/solar_boat_around_Long_Island.htm


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