Should I engage in mobile solar power?

Hello, my name is Victor, I have a higher technical education and experience in the design of outdoor advertising. I live in Orenburg.

The prehistory is this: for me, at work, customers began to turn more and more often, asking them to mount on their billboards - solar panels for advertising lighting in the dark (connecting urban network electricity is a big problem). Also, very often they began to contact us about mobile portable solar power stations for temporary settlements (for the summer): apiaries, pastures, campgrounds, recreation centers, and so on. That is, the demand is good, even fishermen friends say that it would not be bad to have 220 volts in nature at hand.

I decided to make a test sample of a 300 watt solar power plant. And even gave it to a friend on the other.
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Here are some options and photos:









Unfortunately, a similar cabinet together with solar modules weighed 22 kg. That, to put it mildly, is not very mobile. If only for transportation in the trunk.

And here are already existing "foreign" examples of such decisions.



But they are either expensive or thin.

Dear habrovtsy, the question is: is it worth it for me to continue doing this? After all, I confess that my sample looks like a collective farm, however - it is cheap.

Of course, I understand that in the future it is possible to improve the project: to make castors, handles, folding panels (fan or book). But is it worth it?

Do you think you would have bought a similar solar power station?

In no case - not advertising. I will be glad to any constructive criticism.