Translations:Serveur orangepi-raspberry nextcloud en photovoltaïque autonome/373/en

We begin sizing on 1/10 of the peak power of the pannels and 1/4 of the storage capacity given by the theoretical calculations to be offgrid 24h/24h and able to charge in one day in winter, so a pannel of 120W and an old car battery of 45Ah in 12V.