Off-Grid PV Sizing Off-grid Power Calculator Unsure on how much power and how many batteries you require? All you need to do is to fill in the few information in the form to find out! Click here if you have no idea how much power you intend to consume. The list will give you a good idea on the size of your PV system. Appliance Power * W Runtime per day * 1h0h24h No. of days of backup power * 1d0d10d This is on top of the default 1-day usage. Setting it at 0 means only 1 day of usage. We recommend about 2 days of backup. Electricity Supply type * Alternating Current (AC) – Inverter Required Direct Current (DC) AC is what you use for your 3-pin sockets. DC is what you can connect directly to the batteries. Check the datasheet of your appliance if you’re unsure. Sizing Battery Capacities (Theoretical) Battery Capacity Required: *Actual installation capacity required is higher, as batteries should not be fully discharged. Capacity in 12V Capacity:Ah Capacity in 24V Capacity:Ah Capacity in 48V Capacity:Ah Battery Capacities (Lead-acid): Pb Capacity in 12V Capacity:Ah Pb Capacity in 24V Capacity:Ah Pb Capacity in 48V Capacity:Ah Solar Panel Power Sizing Total Solar Panel Power Required (Absolute Minimum) Solar Power:W Contact Information Please provide your contact information so that we can follow up with you on your desired Off-Grid PV System. Name * Name First First Last Last Company (Optional) Email * Phone (Optional) Comments reCAPTCHA If you are human, leave this field blank. Submit Δ