Solar Batteries: Are they worth to invest?

If you’ve been looking to install a solar panel system recently, you’ve probably come across the topic of solar batteries. Although battery systems are becoming increasingly popular, many homeowners still don’t know much about them.

The solar storage battery is one of the key components in solar system, which is used for energy storage.

The electrical energy provided by the solar battery is converted into chemical energy and stored in it. Generally speaking, solar batteries let you store the energy your solar panels produce for later use. Pairing your solar panels with solar batteries to create what is known as a ‘hybrid solar system’ comes with a number of advantages, including access to reliable backup power and independence from your utility.

But how exactly do solar batteries work? And more importantly, how much do they cost? Keep reading to find out.

How solar batteries work?

Solar batteries store the extra solar energy your panels produce that you don’t immediately use so that you can draw from it later.

See, solar panels produce the most electricity during the middle of the day, which also happens to be the time when your home uses the least amount of electricity. A standard grid-tied solar system sends that excess solar energy back to the utility grid.

However, when solar panels are paired with a home battery, excess electricity goes into the battery instead of the grid. Then, when the sun goes down and your panels aren’t producing electricity anymore, you can use the energy you have stored in your battery – instead of paying for electricity from the utility.

This means you get to power your home with all of the clean, renewable solar power your solar panels produce, no matter what time of day it is.

Costs of solar batteries in 2023

The battery is the main accessory in the solar power supply system. From the perspective of the cost structure of the energy storage module, the cost of the battery generally reaches about 60%, and the service life of the energy storage battery is lower than that of the solar module. The average service life of the solar module is 25 years. The average battery consumption is 5-8 years,

Solar batteries’s average lifetime is between 5-8 years. And it needs to be replaced regularly, which increases the cost of use.

Depending on the battery’s chemistry, a solar battery can cost anywhere from $200 to over $15,000 to install.

Most residential grid-tied solar panels are paired with lithium-ion batteries, which cost anywhere from $7,000 to $15,000 to install. Some small-capacity lead-acid batteries can cost as little as $200, but they won’t be able to power much in your home and are typically used as emergency backup power for RVs.

Factors that determine solar battery cost

  • Solar battery manufacturer
  • Battery chemistry
  • Number of batteries installed
  • Backup load panel
  • Labor costs
  • Incentives and rebates

Which types of solar batteries is best for residential PV

There are many different types of batteries on the market, but most residential systems use lithium-ion batteries.

Two main lithium-ion chemistries are used for solar batteries: nickel manganese cobalt (NMC) and lithium iron phosphate (LFP). NMC batteries, like the LG Chem Prime, have been around a bit longer, making them slightly cheaper than LFP batteries, like the Enphase IQ.

While some homeowners choose to use lead-acid batteries instead of lithium-ion batteries because they are cheaper, they tend to have a shorter lifespan, lower capacity, and require regular maintenance.

In conclusion

Installing a solar battery storage system can be a great way to get the most value out of your solar panels.

Batteries are an excellent source of backup power, they increase your energy independence and, in some cases, can even save you more money on your electric bill because you’ll be drawing power from the battery instead of the grid.

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