Solar-Electric Vehicle Design Spreadsheet
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Solar Vehicle Design Spreadsheet

Take a look at the spreadsheet (xls format)

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Example

The purpose of this spreadsheet is to estimate the
cost and weight of solar vehicle electrical systems.

Let's fill in the yellow cells with some design parameters.
In this case, we would like to travel for 2 hours with
3/4 Horsepower (HP). Our estimate for solar cells is
300 Watts (W). We can quickly determine the number
of (lead acid) batteries to reach this goal. In this
case, the quantity is 3x 55Ah batteries. We can
also estimate the cost and weight of those batteries.

The spreadsheet also tells how long the solar panels
will demand to charge those batteries. In this example,
you can see that it would take 2.4 days. I
would like to use the vehicle daily, so that time
is too long. Therefore, the spreadsheet has helped
us determine that more panels are needed.

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My Solar System

I've been experimenting with a solar power system at home.
I made
a minimal web page
about my minimal setup.
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Links