Solar batteries are one of the main components of a photovoltaic system. Do you know what the role of batteries is within a photovoltaic system? How do you determine the best solar batteries?
The primary role of batteries in a solar system is to store surplus energy. As mentioned in one of the previous articles, solar panels produce less electric current during the cold season or on cloudy days.
When photovoltaic panels produce more electric current than is needed, the batteries store that extra amount to be used during times when the panels produce a lower amount of electric current or none at all, such as during the night.
Depending on the voltage and capacity of the battery, a specialist can determine how many batteries are needed for a solar installation.
How do you choose a solar battery?
When choosing a solar battery you need to consider the following factors:
- initial cost;
- storage capacity;
- battery power;
- the impact of the battery on the environment;
- maintenance cost;
- transportation cost;
- installation cost.
The storage capacity of a solar battery is expressed in kWh. This indicates the amount of current that can be stored by the battery and how long the house can be powered with this amount of current.
The power of the battery determines the amount of energy that can be delivered in a single charging cycle.
In addition to these two factors, consider the depth of discharge of the battery. This determines how much the battery can be used before it needs to be recharged. It is also essential to know the conversion and storage efficiency: how many units of electric current can be used as a percentage of the already stored electric current.
Types of Solar Batteries
Solar batteries can be confusing when you are searching for and evaluating the best option for your photovoltaic system, especially if you have little knowledge on this subject. But don’t worry, we can help you with all the necessary information according to your needs. We will guide you step by step, including which batteries are suitable for your photovoltaic system.
However, it is essential to be familiar with some details when discussing with a specialist.
Each type of energy storage battery has its advantages and disadvantages. In the following paragraphs, we will analyze the main three types of batteries.
What are the best solar batteries?
So, these are the most common types of solar batteries. Examining the characteristics, advantages and disadvantages of each, we can conclude that Lithium-ion solar batteries are the most suitable for most photovoltaic systems. It is no wonder that they are also the most used, both by domestic consumers and by commercial ones.