Enter the total power consumption per day, number of backup days required, maximum depth of discharge, and voltage into the calculator to determine the solar battery bank size.
Solar Battery Bank Size Formula
The following formula can be used to calculate the size of a battery pack for a solar installation.
BB = P * D * DI/100 / V
- Where BB is the battery bank size (amp hours)
- P is the power consumption per day (Wh)
- D is the number of days backup required
- DI is the maximum depth of discharge (%)
- V is the voltage (V)
Example
The following is an example problem on how to calculate the battery bank size.
- First, determine the power consumption per day in watt hours. For this example we will say 5,000 watt hours.
- Next, determine the required backup days. Let’s assume 2 days of backup.
- Next, determine the maximum depth of discharge and voltage. For this we will say 90% and 250 volts.
- Finally, calculate the battery bank size using the formula and we get 36 amp hours.
FAQ
How large of a battery pack do I need?
How large your battery pack needs to be for your solar installation is dependent on two main factors. Your power consumption per day and your needed days of power. The other factors are much smaller when determining battery size. In general, most shoot for 2-3 days of power backup.
Related Terms
| solar battery bank size calculator |
| solar battery bank size |
| battery bank size |
| how large should my battery bank be |
| solar battery bank calculator |
| battery bank calculator |
| large battery bank |
| small size power bank 20000mah |
| battery pack dual usb palm size |
| small battery bank |
| battery bank size calculator |
| battery pack dual usb palm size 10000mah |
| smallest portable power bank |
| power bank 20000mah small size |
| best pocket size power bank |
| best small size power bank |
| sizing solar panels to battery bank |
| battery bank capacity calculator |
| best size power bank |
| 2kw battery bank |
| small solar battery bank |
| best small battery bank |
| off grid battery bank calculator |
| anker powercore 20100 size |
| best power bank size |
