Friday, February 18, 2011

Re: [Electric Boats] Crossing the Altantic with solar power

 

The wake turbulence evident in the video and splashing from the props just says to me... wasted energy and slower speed.
Is the aft panel section articulated so that it can be dropped down in the morning to catch  the rays from the east, and lifted up in the afternoon to make best use of the late afternoon sun?
Alan 
----- Original Message -----
Sent: Friday, February 18, 2011 6:19 PM
Subject: RE: [Electric Boats] Crossing the Altantic with solar power

 

Here's a better video clip with audio: http://www.youtube.com/watch?v=lcbFWo00jM4&feature=related

Wow…500sq meters of solar panels and 1MWh of battery storage capacity!

Thanks.

From: electricboats@yahoogroups.com [mailto:electricboats@yahoogroups.com] On Behalf Of Carel Ruysink
Sent: Friday, February 18, 2011 7:56 AM
To: electricboats@yahoogroups.com
Subject: Re: [Electric Boats] Crossing the Altantic with solar power

 

For a good impression of size and concept see this film on youtube;

Carel

----- Original Message -----

From: qc_ca_666

Sent: Thursday, February 17, 2011 6:45 PM

Subject: Re: [Electric Boats] Crossing the Altantic with solar power

 



Hi all!

Info regarding their solar cell efficiency:

http://www.scientificamerican.com/article.cfm?id=worlds-mightiest-solar-boat

"PlanetSolar also uses the highest efficiency mass-produced solar cells. Manufactured by SunPower Corp. for installation on the rooftops of homes and commercial buildings, these cells can convert 22 percent of the sun's energy into electricity, says Joern Juergens, director of components at SunPower. After installation on the ship, however, the cells' efficiency is reduced to 19 percent, because they must be covered in layers of plastic and transparent composites in order to make them immune to the corrosive effects of seawater and variable temperatures."

Also found in Planet Solar's logbook:

http://www.planetsolar.org/be-part-of-it/logbook.html

"While our solar panels love the sunshine, they do not like heat. This holds true for all photovoltaic cells. All 10°C bring about a loss of 3 percent of efficiency."

I also noticed that some of their solar panels are mounted on "slide-out":

Close: http://www.planetsolar.org/typo3temp/pics/__ba0ce217c1.jpg
Open: http://www.planetsolar.org/typo3temp/pics/__62375ac5d0.jpg

Happy reading!

Pierre

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