admin 
So far, the use of
solar street lights
is still continuously expanding, and many road projects prefer to choose solar street lights as lighting fixtures. Are you familiar with the configuration of solar street light systems? Today’s goal is to give you a rough understanding of how to calculate the
solar street light system
configuration, and I will explain the calculation of the battery here.
Each lamp has a power rating. Let’s assume it is 30W, with the lights on for 5 hours at 100% and 5 hours at 50% each day. This means the lights are at full power for 7.5 hours daily. We need to support three consecutive rainy days. The currently popular 12.8V lithium iron phosphate battery is selected. To calculate the daily energy consumption, at full power of 30W for 7 hours per day, multiplying 30 by 7 hours gives us a daily consumption of 210 watt-hours. In a 12.8V system, the capacity of the battery would be 16.4 amp-hours, but it is important to note the 12.8V, as many are using 3.2V systems now.
We know that 210 watt-hours, or 12.8V at 16.4 amp-hours, represents daily energy consumption. For two or three consecutive days, we would need 630 watt-hours. Considering the discharge depth of lithium batteries, assuming that 100 watt-hours cannot be completely discharged, we can typically discharge up to 90%. Therefore, factoring in a 90% discharge depth and the cable loss, where we assume a 10% loss, we calculate 630 watt-hours divided by 0.9 and then again divided by 0.9. This results in 778 watt-hours. This capacity represents the required battery capacity for configuring this system.
Bitpott
solar street light manufacturer
professionally researches, produces, and sells outdoor lighting such as solar and LED lights. With years of production experience and advanced manufacturing equipment, we guarantee quality, reasonable prices, and configurations. For purchasing
LED solar street lights
and consulting about solar street light prices, please contact our
online customer service
.
