The below picture is a solar power generator. I built this generator to supply power to a residential home during construction last year. It has 4 batteries, 8000 w converter, control switch, gauges and circuit backer, and 4-210 w solar panels. As a member said, this ways 300#. Challenging to move with a dolly but manageable. I used 8020 as the skeleton and bolted 1/2" plywood inside and outside for a few reasons. But basically, all of the guts to run power tools off a solar panel are inside the box with external plugs. From demolition to framing during October to January, the system worked great. The system failed once HVAC and plumbing began working. They needed lights! Which drained the batteries in 3 or 4 hours.
Long story short. Now days, the inverters are inexpensive for what they can provide. The solar panels have come down drastically. The solar panel mounts can be costly, but the expensive mounts that rotate will benefit in the long run by providing power throughout the entire day which would reduce number of batteries and panels. The batteries are expensive so you need to invest in low voltage lighting and other power consuming appliances (coffee maker, ummmm!).
Bright side to a bare minimum solar power system, is that you can add to the system as needed.