Re: [Electric Boats] Marine Solar Array makes 3 knots

 

Myles,

We were coming back into the harbor at about an hour before sunset.

I measured the output of the array while it was horizontal and it output 20 watts.

We then focused the array directly on the sun and the output increased to 200 watts.

I couldn't believe it myself, but I had some good company on board who witnessed it.  

I can keep a log of the findings of the array and put it on video too.

The array has only just been built and we have very little data on it.

More pictures on the construction can be seen on the Electric Boats Photo Album under Propulsion Marine.

James

On Oct 2, 2011, at 10:14 PM, Myles Twete wrote:

 

James noted:

"Tracker Expected to be released soon.  By Focusing on the sun, power developed is as high as 10 times more than if panels are mounted horizontally"

 

Really…10x?

 

Would you believe 18%: http://www.civicsolar.com/resource/effect-array-tilt-angle-energy-output

 

Array Tilt Angle (degrees)	Phoenix, AZ (33 North)		Portland, OR (45 North)
	Annual Production (kWh)	Delta (%)	Annual Production (kWh)	Delta (%)
0 - flat	5,723	0	3,624	0
10	6,178	+8%	4,019	+9%
20	6,461	+13%	4,239	+15%
30	6,575	+15%	4,355	+18%
40	6,526	+14%	4,368	+18%
50	6,310	+10%	4,279	+16%
90 - vertical	3,966	-31%	2,967	-20%

 

 

From: electricboats@yahoogroups.com [mailto:electricboats@yahoogroups.com] On Behalf Of James
Sent: Sunday, October 02, 2011 6:37 PM
To: electricboats@yahoogroups.com
Subject: [Electric Boats] Marine Solar Array makes 3 knots

 

 

We have just recently completed testing of our solar array which you can find on the website at

http://www.propulsionmarine.com/electric/charging-sources

SOLAR - The Propulsion Marine Solar Array Features:

2 x 225 watt Sanyo Panels for total of 450 watts at 90 Volts

Midnite Solar Charge Controller

Electric Actuator Lift Arm

Electric Worm Gear Chain Drive to Rotate Pole

Joystick Control

Tracker Expected to be released soon.

By Focusing on the sun, power developed is as high as 10 times more than if panels are mounted horizontally

Kapowai is capable of obtaining 3 knots while motoring under power made directly from the solar panel.

James

__._,_.___

Reply to sender | Reply to group | Reply via web post | Start a New Topic

Messages in this topic (6)

Recent Activity:

• New Members 31
• New Photos 79
• New Links 1

Visit Your Group

MARKETPLACE

Stay on top of your group activity without leaving the page you're on - Get the Yahoo! Toolbar now.

Switch to: Text-Only, Daily Digest • Unsubscribe • Terms of Use

.

__,_._,___