Quote:
Originally Posted by hootis
I am thinking about putting two 100 Watt solar panels on my car, adding a second or larger battery then after some testing remove the alternator. I estimate I will, on average get 100-125 watt/hours during the day, out of the 200 watt system because they will never be angled correctly towards the sun.
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I should mention that large efficient traditional glass topped aluminum sided mono crystal panel in the picture is only an 80 watt panel.
I would like to know how you are going to put 200 watts of solar panels on your car. The roof of my suburban will only hold about 180 watts.
For a car, realistically 100 watts is a lot.
With my 90 watts of panels installed and laying flat I am only getting 40 watts.
But I am in New Mexico. You are in the north east. I lived in Maine for 4 years.
I know what its like in the north east, you can easily go 10 days with over cast skies in the winter. Then when the sun is out its at a much shallower angle.
If I had driven to new England this weekend I would expect my 90 watts worth of panels to produce nearly 0 power given the overcast this weekend.
Then when the sun does come out, I would expect to see 30 watts at noon from a 100 watt panel and MPPT charger if I were lucky. I believe 100 watt hours is over optimistic for most days. If you don't have an MPPT charger controller, well forget about coming any where near 100wh per day.
In newmexico I have solar power to burn. Up north, you do not.
So far I have spent roughly $1.5 on the grid tie half of the power system.
I installed an AL/CU connector that I other wise would have not installed.
That white power plug, I have a whole box full of them removed from dead uninterruptable power supplies.