I want to create a charging station and for a laptop of 135W consumption with solar energy, because in my area electricity outages are normal (5 hours per day or more), but I need some help?
I want to buy an mppt charging controller, some solar panels, an inverter, and a lower possible capacity battery.
Storing energy is not my priority I just want to use daylight to charge a laptop when possible from 8 am to 6 pm schedule on daily basis, but only when a power outage occurs, and if possible because wheather conditions.
In my area insolation numbers are: kWh/m²/day 4.43, 4.60, 4.70, 4.49, 4.71, 4.94, 5.10, 5.28, 5.32, 4.77, 4.31, 4.13
Well, I have so many doubts, but this is my plan: install a 300W solar panel, connect it to mppt charger controller (10 Amps is enough?), and the controller to the battery, and the battery to the inverter, a very simple and regular circuit, but my priority is not to store energy, just use to charge laptop it if possible or use power directly from solar panel using inverter, because this I want to use and 20 AH or 30 AH battery, just to stabilize charge of the laptop or power consumption but not to store energy.
I believe that if the battery is fully charged the inverter will start using the current directly from the solar panel using battery charge to stabilize it, that's what my idea is based on, but I don't know if I'm wrong?
Are there errors in my assumptions? or What modifications should I make to achieve what I am aiming for?