- May 10, 2017
- Posted by: solaradmin
- Category: Of Interest
Solar systems with backup power requires batteries. There are a lot of vendors, brands and types of batteries available. How do I choose the best battery for my application? See today’s earlier posts for context and a comparison table.
In this post we take a closer look at ventilation and at energy cost
The placement of the batteries will influence the type of battery. If the batteries will be placed in a well ventilated place Lead Acid batteries may be used. In closed areas without ventilation, sealed batteries will be better.
The most important consideration when choosing a battery backup solution is to minimize the energy cost from the batteries
Energy Cost = Battery Price /(Energy X DOD X Cycles) /kWh
Battery Price: cost of the battery solution from your supplier
Energy: kWh storage available in the battery bank. The energy depends on the rate of discharge – it will be good to use a uniform rate of discharge of 10 hours (C10)
DOD: Depth of Discharge
Cycles: How many cycles the batteries will last at the specified DOD
#solarpower #installation #batteries