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Accumulation batteries for Photovoltaic Plants
The storage batteries used for photovoltaic systems allow to store the energy produced by the photovoltaic excess to re-use in the moments in which the plant does not produce energy (eg. At night).

Types of storage batteries for photovoltaic
Battery FotovoltaicoLe Accumulation batteries for the self-produced energy accumulation with a photovoltaic system, in order to use delayed temporally with respect to its production, are of electrochemical storage batteries and are produced with a wide range of construction technologies generally of the following kinds:

storage batteries Lead - acid (Open Cup and sealed with gel electrolyte)
storage batteries Lithium-ion (li-ion) including: lithium-cobalt oxide, lithium-phosphate, lithium-manganese, lithium-nickel oxide, lithium- iron-phosphate
Batteries to Nickel-metal accumulation - hydride (NiMH)
storage batteries Nickel-cadmium (NiCd)
storage batteries with high temperature technologies (eg. ZEBRA nickel-sodium chloride)

Main characteristics of the batteries
The main features that should satisfy the storage systems for photovoltaic plants are as follows:

continuous operation to ensure a consistent ability to earn or produce electric power in large and small amounts
sufficiently large current supply
long life in cyclic operation
low maintenance in operation
reduced costs
Comparison of characteristics for the type of storage battery
In the table you can evaluate the advantages and disadvantages offered by various types of storage batteries for photovoltaic systems; technologies to lead and lithium are those which currently are the most widespread because they offer valid operating performance in relation to the cost and duration.

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