Solar help

I have used a solar system on my trailers for years. I have been using two 74 watt panels and have moved them to two new trailers over the years. They work great in non-shady areas, but in very shady areas they will not work much at all. I am absolutely sold on solar and dry camp almost exclusively. With just those panels I don't waste light use, but watch a couple of hours of TV most nights and rarely worry about charging. I have thought seriously about upgrading to a new panel that puts out more juice, especially since the newer panels are far less expensive, and mine are reaching the end of their projected 20 year lifespan.

My only concern about the new panels is that many are made in China and I don't know how their quality rates. As I always prefer to buy products 'Made in the USA' I know you can find them. I also know that some of the solar systems sold hide that they are made in China with at least one I found misleading customers into believing they were made 'Made in the USA' I don't know who rates the reliability of the different panels, but I'm sure someone does.

The absolute best things about solar systems are:
Free charging
Silent charging
Charging before a trip not necessary- Batteries always topped off
Longer battery life
Seamless, easy use

Down side of solar: Initial cost- Nothing else

I'm absolutely sold on solar.