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| OutBack: Solar Boat on a big pond http://solar-guppy.com/forum/viewtopic.php?f=5&t=125 |
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| Author: | wd8cdh [ Fri Jun 27, 2003 5:01 pm GMT EthGMT ] |
| Post subject: | OutBack: Solar Boat on a big pond |
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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| Author: | wd8cdh [ Mon Jun 30, 2003 9:09 am GMT EthGMT ] |
| Post subject: | Solar Boat on a big pond |
The Solar Boat is now over half way around Long Island. |
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| Author: | LarryH [ Tue Jul 08, 2003 11:06 am GMT EthGMT ] |
| Post subject: | Solar Boat on a big pond |
Those are impressive efficiency numbers - 104%. Perhaps you rounded down on one side and rounded up on the other ? |
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| Author: | wd8cdh [ Wed Jul 09, 2003 12:30 am GMT EthGMT ] |
| Post subject: | Solar Boat on a big pond |
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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| Author: | Frank [ Tue Jul 15, 2003 7:32 am GMT EthGMT ] |
| Post subject: | Solar Boat on a big pond |
That's pretty impressive performance - any pictures to admire? |
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| Author: | wd8cdh [ Tue Jul 15, 2003 4:23 pm GMT EthGMT ] |
| Post subject: | Solar Boat on a big pond |
http://www.gosolar.com/press/release/solar_boat_around_Long_Island.htm |
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