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SolarEyes International > Solar Energy > SOLAR SYSTEM COMPONENTS AND THEIR FUNCTIONS
Solar EnergyEnergy

SOLAR SYSTEM COMPONENTS AND THEIR FUNCTIONS

SolarEyes
Last updated: 2023/02/01 at 10:30 AM
SolarEyes 8 Min Read
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Solar system components
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What makes a solar system as a whole? What are the functions of solar system components?

Contents
Functions of Solar System Components1. Solar panels2. Charge controller3. Inverter4. Battery storage systemTypes of batteries include: 5. Protection system6. Monitoring and metering system7. Loads or appliances connected8. Racking systemFOLLOW US ON SOCIAL MEDIA

These might be the questions you have in a quest to understand more on solar systems. Or perhaps you do not know the function of a specific solar system component.

HOW TO SIZE A SOLAR SYSTEM – 5 clear steps anyone can follow

Or rather, you might be on a do it yourself (DIY) for sizing your own solar system and would like to know the different functions of solar system components. With a solar DIY the common question is usually “What components do I need to complete my solar project?”

If you are still wondering why solar energy? Then this article will help you. WHY SOLAR ENERGY? – 10 reasons to go solar

This article is to unveil the above questions and make one well versed with components of a solar system and their respective functions.

Functions of Solar System Components

Normally solar system components consist of the following:

  1. Solar panels,
  2. Charge controller,
  3. Inverter,
  4. Battery storage system
  5. Protection system
  6. Monitoring and metering system
  7. Loads or appliances to be powered
  8. Racking system

HOW TO START A SOLAR COMPANY – do these 6 things and make money through solar

Function of each solar system component is described below.

In any case you want to know how to size a solar system, then this article will help you with clear steps that anyone can follow.

*** ALSO CHECK: ABBREVIATIONS IN THE SOLAR ENERGY SECTOR

1. Solar panels

As part of solar system components, solar panels receive solar radiation from the sun and converts this into electrical energy. This will be direct current (DC) electricity. Normally solar panels are put either on top of a roof or as ground mount exposed to the sun.

Solar panels are connected in either series or parallel combinations. If the solar panels are many then it is normal to find both series and parallel combinations in order to meet and maintain voltage specifications for a charge controller.

HOW TO START A SOLAR COMPANY – do these 6 things and make money through solar

2. Charge controller

A charge controller regulates the charging of batteries from the solar panels. A certain amount of voltage is required for charging the battery storage system for each solar installation. The charge controller also ensures the batteries do not discharge back into the system at night.

Common type of charge controllers are Maximum Power Point Tracking (MPPT) charge controller.

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3. Inverter

Since solar panels generate DC power and this is stored in batteries which also are DC power sources. An inverter converts DC electricity from the batteries to usable 220V, 110V, 240V or any needed AC voltage. The AC voltage is used to power the loads or appliances powered by the solar system.

Basically an inverter gives an output of AC electricity and this allows end users to get AC electricity from the wall sockets.

HOW TO SIZE A SOLAR INVERTER

An inverter forms an important part of solar system components. It is the brains of a solar system and advanced inverters provide a monitoring system for tracking the system performance.

Types of inverters include:

  1. String inverters
  2. Microinverters
  3. Battery based inverter
  4. Grid tied inverters

Check how to size a solar inverter here.

4. Battery storage system

Again one of the key component in solar system components. A battery storage system is used for storing energy for future use when there is no sun – usually during the night. Thus battery storage system in vital for grid failure times, during the night, during interruptions and under days of overcast.

How to Identify Fake Solar Products

Types of batteries include:

  1. Lead-acid batteries – flooded and sealed type
  2. GEL batteries
  3. Lithium ion batteries
  4. Nickel based batteries
  5. Flow batteries

5. Protection system

Protection system is for the safety of solar system components, the loads connected and the user. Protection system for a solar system include solar power system disconnects.

System disconnects are basically switches that allow disconnecting the system from different elements of the solar system for example they allow disconnecting the power from the solar panels whenever there is need for repairs or whenever there is a problem. Thus, key components of protection system are circuit breakers.

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6. Monitoring and metering system

Monitoring and metering system is optional and is used for monitoring the system performance. Monitoring can be local monitoring or remote monitoring at a distance. Metering enables the operator and/or end user to have a view of her or his usage.

7. Loads or appliances connected

These are the appliances connected to the solar system? Typical appliances for a solar system include lighting, entertainment, fridges and phone charging.

Number of appliances, their power ratings and run time hours (hours they are connected to the solar system) determine the time for which the battery storage system will last when there is no sun.

8. Racking system

Racking system keeps the solar panels and solar system in place. A solar system can be ground or roof top mount.

*** CHECK: HOW TO SIZE A SOLAR SYSTEM – 5 clear steps anyone can follow

Keep following SolarEyes International as we will be taking this topic further expanding on each component of a solar system. For example expanding on solar panel components and other topics related to solar energy.

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*** ALSO CHECK: WHAT IS A SOLAR HOME SYSTEM (SHS) – 7 treasure things to know

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HOW TO START A SOLAR COMPANY – do these 6 things and make money through solar

HOW TO SIZE A SOLAR SYSTEM – 5 clear steps anyone can follow

How to Identify Fake Solar Products

TAGGED: function of a charge controller, functions of solar components, solar, solar battery, solar inverter, solar system, solar system components

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2 Comments 2 Comments
  • ANOZIE CHIKERE says:
    January 21, 2023 at 7:21 pm

    The write up on Solar system components is very educative. I have learnt a lot from going through it.
    Please can you make a video and a write up on how to connect solar panels both in series and in parallel together with the other solar system components.

    Reply
    • SolarEyes says:
      January 21, 2023 at 7:43 pm

      Happy to hear that it was helpful to you Anozie. Comments like these give us the energy to do more. Thank you very much. Yes, you have a good point, we are going to do videos soon on installation and commissioning of solar systems from small to big. Keep following.

      Reply

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