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Date:         Mon, 16 Mar 2009 11:29:48 -0400
Reply-To:     Greg Potts <greg@POTTSFAMILY.CA>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         Greg Potts <greg@POTTSFAMILY.CA>
Subject:      Re: eBus project: A T2 Westfalia converted with electric motor
              and LiIon batteries.
Comments: To: "Jack R." <jack007@COMCAST.NET>
In-Reply-To:  <000301c9a647$904f6160$b0ee2420$@net>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed

Hi Jack,

I once did a comparison once between the energy input from a solar panel and the requirements of a 50HP electric motor. With one HP = 746 watts, it takes a LOT of solar power to move a vehicle the size of a westy.

IF you could get by with a 50HP motor to push your vehicle I would expect about 25-30 minutes of operation for each WEEK spent charging the batteries. If you factor in the losses created by the aerodynamic drag caused by the solar panel it would probably come out equal.

In short: NO.

Happy Trails,

Greg Potts 1973/74/79 Westfakia "Bob the Tomato" 1987 Wolfsburg Weekender Hardtop www.busesofthecorn.com www.pottsfamily.ca

Jack R. wrote: > Would there be a cost / range benefit to add a large solar panel to your > roof?

y


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