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Solar panel energy storage systems

Solar panels are a device that absorbs sunlight as a source of energy to generate electricity. The solar panels are the collection of solar cells and these small cells spread over a large area and it can work together to provide enough power to be useful. Photovoltaic modules are used to generate electricity from the sun through the photovoltaic effect.

Solar power systems derive clean and pure energy from the sun. By installing a solar system on your home helps combat greenhouse gas emissions and reduces the collective dependence on fossil fuel. According to National Renewable Energy Laboratory, sunlight received by earth in one hour is enough to meet the annual energy needs of all people worldwide.


Solar Energy Storage

On cloudy day and night, the amount of energy receives is reduced and it is the main drawback. There are several methods to overcome this situation. Mainly two methods are used in the storage of energy with a PV solar power system. One way is Battery Bank to store the electricity and second is a grid-tied PV system.

Here the battery solar power storage system is used. Major components of a battery solar power system are charge controller, battery bank, system meter, main DC disconnect.

In grid-tied PV system actually use the grid as its solar energy storage system and it is done using net-metering. When excess solar electricity is produced then it is sent to grid and the electric meter rolls backward. At night the system is not producing electricity then we can pull electricity from the grid and the electric meter will roll forward.


Capacity & power of the storage system

Capacity is the total amount of electricity that a solar battery can store and it is measured in kilowatt-hours (kWh). Mostly home solar batteries are designed to be stackable. That means it can include multiple batteries with a solar-plus-storage system to get extra capacity. From the battery power rate, we can understand how much electricity a battery can provide at a given moment. If a battery with a high capacity and a low power rating would deliver a low amount of electricity for a long time. In the case of a battery with low capacity and high power, the rating could run the entire home, but only for a few hours.

The depth of discharge of a battery depends on the amount of a battery’s capacity that has been used. In a higher DoD, we can able to utilize more of the battery’s capacity. The battery’s ability to hold a charge will gradually decrease when more use it. In solar battery will have a warranty that guarantees a certain number of cycles because battery performance naturally degrades over time. So that most manufacturers will also guarantee that the battery keeps a certain amount of its capacity over the course of the warranty period.

Many new technologies are being developed to discover new ways of making solar energy components. It’s a good option to install a solar system on to home and it will replace current fossil fuels like coal and gas for generation of electricity that produces air, water, and land pollution.


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