Hello.
I´m going to put 4 solar panels (24 V 500w each) in my roof. The installation company only gives me the panels and the inverter, wich is able to connect to batteries. I don´t want to have batteries for the night. In my neighborhood we use to have cuts in the electricity (Spain is a very developed country, I promise hahaha, it is a problem only in my neiborhood). So I want to have a backup for a small fridge, internet connection, a laptop and 1 or 2 led lights. I´m not sure if my calculations are right.
I have estimated 600watts/hour, and I want to run them for 10 hours aprox, so I´ll need 600x10 = 6.000w. I´ll use 2 12V batteries in series, so 6.000/24 = 250 amps. Now, increase that for the inverter cosumption, and safety factor of 20% so, with 2 12V 300Amps batteries would be enough?
Thank you
best regards
I´m going to put 4 solar panels (24 V 500w each) in my roof. The installation company only gives me the panels and the inverter, wich is able to connect to batteries. I don´t want to have batteries for the night. In my neighborhood we use to have cuts in the electricity (Spain is a very developed country, I promise hahaha, it is a problem only in my neiborhood). So I want to have a backup for a small fridge, internet connection, a laptop and 1 or 2 led lights. I´m not sure if my calculations are right.
I have estimated 600watts/hour, and I want to run them for 10 hours aprox, so I´ll need 600x10 = 6.000w. I´ll use 2 12V batteries in series, so 6.000/24 = 250 amps. Now, increase that for the inverter cosumption, and safety factor of 20% so, with 2 12V 300Amps batteries would be enough?
Thank you
best regards