Mariamaria87, if you haven't purchased solar panels or intend to use them, and live in the Phoenix or Tucson area, here is where I have purchased many solar panels in past years, they 100% honest and if you are interested in used or new, they are all checked for power output.. I would skip buying accessories here, there are other places a little cheaper.. but panels cant be beat.. Talk to Jason or Rusty..The solar companies here in penasco buy them here.. dont tell them Corndog sent you they know me by another name
..I am not an installer,
just a hack... https://santansolar.com/
P.S. dont be afraid to ask you a discount.. they are usually happy too... well maybe not happy, but not mad either.. This kid will teach you everything you need to know about building off grid solar power systems.. his youtube channel, even if you aren't interested in DIY, when you have an off grid solar sytem its yours, you own it and if you dont know how to maintain it, sometimes its a huge problem sometimes finding somebody to come fix it.. so you could be without power for a while.. probably expensive to for something maybe simple or basic.. https://www.youtube.com/channel/UCoj6RxIAQq8kmJme-5dnN0Q
His name is Will Prowse..