Our area near Phon Phisai has no government electricity, though for 10 years it's been coming "soon". We have a 2-panel solar system rigged up to a car battery, installed by my handy brother in law following YouTube instructions. It's enough to run a fan and a few lights, elevating our place to a level just above glorified camping and that's been fine with us to date. However we have a few more people spending extending periods there and would like to put in more panels + battery system. This time (though BIL may get upset) we want to get a professional in to make some recommendations about our options. Any good recommendations out there?