[UAHaerospace]

several small 100w panels might suffice for your low draw needs, but if you really 'are' mostly in 'forests', then you'll not be getting a lot of sunlight - so a generator is really a better option, more powerful, more predictable, and can still be used sparingly to charge the battery(s) for only several hours over the course of a day. It's also the only option if you want air conditioning.