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How to effectively use the solar power system during a grid outage?

  1. 04-01-2022 14:45:06
  2. 117
The way for you to still have electricity during a power outage is to install a stand-alone solar system or install an energy storage method for a grid-tied solar system.
Mục lục
Solar power is no longer a strange concept, it is a type of electricity using solar energy to replace traditional electricity solutions. This is a clean, environmentally friendly renewable energy source that brings many benefits when used. However, when the power goes out, will the solar power system be cut off? and how to use solar power during a power outage? Let's find out through the article below.

What is solar power?


Solar power is the use of solar panels that convert sunlight into electricity. Solar energy is limitless, there is no cost to use. This is a clean, reliable energy source that brings many uses. Solar power is being used for lighting, operating water heaters, cooking...
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Structure of the solar power system

Solar power system includes solar panels, inverter, solar charger, storage battery system. Each of these parts plays a different important role to help create the most efficient solar power system.
  • Solar panels: The main component in a solar cell is pure silicon, which is responsible for collecting and converting solar energy into electricity.
  • Inverter: Inverter is used to convert the DC power of the battery to AC power for use in electrical equipment.
  • Solar charging: Responsible for ensuring the charging of energy from the solar cell to the battery system.
  • Battery storage system: Because solar power is not continuously produced due to fixed lighting time, the batteries are then used to store electricity. When the grid power is lost or the solar power system does not produce electricity, these storage batteries will supply the consumed loads from the grid system.

Solar power systems

1. On Grid Solar Power

When sunlight hits the photovoltaic panels, it generates DC current. Then, the inverter device will convert the DC current into AC current used in daily life and production. AC power from solar power will be connected to the main electrical cabinet of the national grid.

On Grid solar power helps to save maximum electricity costs, lowest installation costs because no storage system is used.

2. Off Grid Independent Solar Power

A system that generates electricity and stores it to supply electricity to loads without being connected to the national grid.

Solar panels convert solar radiation into direct current (DC). Then the DC current will be charged into the storage system (battery) through the charge controller. Finally, the Iverter will convert the DC current into AC current for electrical equipment.

Off Grid solar power is suitable for places where there is no electricity from the grid, intermittent power, frequent power outages.

How to use solar power during a power outage

Whether or not solar power can be used during a power outage depends on your electrical installation, whether grid-tied or stand-alone solar power.

The way for you to still have electricity during a power outage is to install a stand-alone solar system or install an energy storage method for a grid-tied solar system.

1. For grid-tied solar power system

If you use solar power connected to the grid, when the power goes out, the solar power system will automatically disconnect. This is to prevent the system from operating the voltage that will be emitted back to the grid, causing danger when someone accidentally touches it. This is as a safety precaution, leaving you without electricity to use.

So, grid-tied solar power when there is a power outage will only work for the system that has a battery reserve or is paired with a generator.

Solutions to use solar power connected to the grid when the power goes out

- Grid-connected solar power with backup battery:

This way you have a backup source to keep your electricity usage uninterrupted. The battery will provide mains power during a power outage. However, with this method, the battery investment cost is quite expensive and the battery life is not high. In addition, the backup battery is large in size and takes up a lot of space.

- Solar power connected to the grid connected to a generator

With this method, it is possible to supply power to many devices operating in the event of a power outage. Using a generator will be less expensive, but it has the disadvantage that it needs to be refueled continuously, causing high noise. When there is a power failure, it does not provide power immediately, but has to wait a few minutes to start up.

2 - For stand-alone solar power system

Standalone solar power helps you to be self-sufficient in electricity, not dependent on the grid. So when the power from the grid is lost or unstable, your power supply will not be affected.

The installation of solar panels will ensure that electricity can still be used in the event of a power failure because the panels generate an independent energy source from the national grid. Solar panels generate electricity, but you need a place to store that electricity so you can use it when you need it. Without storage, any energy the panels produced would be lost.

Standalone solar requires enough batteries to ensure you have enough backup power during a power outage. This often makes it much more expensive than grid-tied solar systems.

Conclude

The above article helps you better understand how to use solar power during a power outage. Solar cells will work when the power is out, for the case of using a stand-alone solar power system or a grid-tied solar power system with storage. As for the grid-tied solar power system without storage, the solar battery will not work during a power outage to ensure safety.

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