Affordable Solar & Wind

12 volt solar panels for caravans-realistically what wattage would I require to run lights,TV etc?

I am looking to add a solar panel to my caravan for the following uses-Trickle charging of the battery when I am not on site and daily battery charging for when I am. I will be using the onboard 12volt lighting system for, I would guess a couple of hours per night. I would also like to run a 12v TV/DVD Combi unit and would like a solar Panel that could recharge the previous days usage-I appreciate that weather conditions can have an effect on recharge rates-all comments gratefully received!

Its fairly easy to work out.
First work out how long you want each 12v thing on for each day.
Then work out the watt/hours - multiply the watts by number of hours used.
Add all your watt/hours together to give you total watt/hours.
In the UK we get about 8 hours usable light for solar panels. so devide your total watt hours by 8, to give you a guide to the power of solar panel you need. Always go up to the next nearest avaialble size.
For larger size panels you will need a regulator device. - good dealers give good advice. And contary to previous answers you can charge lead acid batteries via solar panels.

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