Yesterday we installed your solar system at Ketane for charging the laptops. We installed 4 x 80 watt panels, a 20 amp reg, 1200 watt pure sine wave inverter, and 2 x 260 ah batteries. DC is 24v, and there is a DB for the AC. You can later wire up the classroom to have some plugs and lights or just use extension cords for a TV and so on.
I am sorry it took so long, but the road through Phamong is not serving us. I will follow with an updated invoice, and if you can add something, I will appreciate it.