Part of a series in renewal energy technologies
brought by M/s Paavi Solar
Friends, our
today's talk will be on Solar Batteries. Even though we can use Normal batteries
for storage of generated D.C. Charge but due to rampant fluctuations in solar
generation due to rain, clouds or shades life of Normal batteries will be
severely reduced and hence cost of replacement of batteries at an early life
will be an added disadvantage. So in place of Normal batteries, we should use Solar
Batteries may be tall tubular batteries or Lithium-ion batteries.
1. Tall Tubular Batteries- These batteries are an
up-gradation in Lead Acid Batteries and can charge even at a low current and can
store more power. These batteries are more efficient with 1500 life cycles and have more shelf life of 5-8 years. These batteries are having C10
rating whereas Normal Batteries are C20 rating, which means that Solar
Batteries can be connected with more load. In order to connect more load to the
batteries of the C20 rating, two batteries can be connected in parallel. These
batteries need to recouped with water once in 3-6 months. But these batteries
are bulky and consume more space and need to installed on heavy structures. Moreover, these batteries are a bit
costly.
2. Lithium-ion
Batteries- Lithium-ion phosphate batteries are the best Lithium-ion
batteries. These batteries have double the shelf life of 12-15 hrs., Safe and
not burnable along with better thermal stability. These batteries have very
high life cycles of 5000 or more and have high charge and discharge
capabilities.But these batteries are costly.
Hence we can
make a wise decision based on our requirement of backup.
-G
P BOSE
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