Solar Power

Does anyone have a recommendation for a solar backup power system? I'm considering this one https://store.amtvmedia.com/AMTV-HOMEGRID-5000-HD-EXTREME--Home-Backup_p_226.html. from AMTV, since I'd like to support alternative media and believers in Jesus/Yeshua. Has anyone tried and implemented something similar to go off the grid or for backup power?