All You Need to Know About Storing Solar Energy
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All You Need to Know About 
Storing Solar Energy
Although solar energy has numerous benefits, it does have one limitation – solar 
energy can only be generated when the sun is at its maximum. That is why, during 
night and monsoons, solar energy generation can be negligible. And the fact that 
the demand for it never decreases, makes it an issue. But the solution is simple – 
solar energy storage.  
Storing surplus energy is essential to get the maximum use out of the solar panel 
system. This can, in turn, lead to more efficient energy grids, cost savings, and 
decreased fossil fuel emissions.
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So, here are a few things that 
you need to know about storing 
solar energy: 
How is Energy Stored?
The term ‘energy storage’ is used for technologies that help capture energy. This energy is 
then stored in a different form. It can be later released if a requirement arises. This begins with 
a rooftop solar installation project that helps capture solar energy.
Some energy loss always occurs in the process of converting and retrieving it. That is why 
storage is not fully efficient. However, it does allow more flexible use of energy at preferred 
times. Thus, energy storage is an effective solution to increase system efficiency and it can 
also improve power quality by matching supply and demand.
Solar energy storage is of three major categories: Thermal, Battery, and Mechanical.
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Thermal Storage
Thermal storage, as the name suggests, involves the absorption of heat from the sun using 
various mediums like molten salt or water. Then, the heated medium is stored in an insulated 
tank and used whenever solar energy is required. 
Battery Storage
Other than the absorption of heat, solar energy can also be pumped into a battery. Battery 
storage refers to solar energy being stored in electrochemical batteries that involves a chemical 
reaction among the battery components. This chemical reaction is reversed when the energy 
has to be released and used. While reversing the chemical reaction, the battery gets 
discharged. This enables the energy to be released from the battery. For solar applications, 
usually, Lithium-ion batteries are used. 
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Mechanical Storage
Mechanical storage is all about taking advantage of the fact that solar energy has the potential to 
generate electricity. Thus, mechanical storage refers to the conversion of surplus electrical power 
into mechanical power. This is later changed back into electricity to be used for various 
purposes. 
There are three major mechanical energy storage systems – flywheel, pumped hydro, and 
compressed air. 
The sun is an abundant source of solar energy. At times, the full utilisation of this natural 
resource can be a problem. Fortunately, there are a number of options these days which help to 
store solar energy. This enables it to be used efficiently for commercial and residential purposes. 
Top companies like Amp Energy India are playing a crucial role in the development of solar 
energy by providing high quality solutions. We hope that this helped you get a better idea of solar 
energy storage and the benefits it has to offer.