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What is a solar home battery?

A solar home battery is a storage device that stores energy generated by solar panels. It allows homeowners to use solar energy even when the sun isn’t shining, such as during the night or on cloudy days.

How does a solar battery work?

Solar batteries work by storing excess energy produced by your solar panels. This energy can then be used as needed, providing power to your home during times when the solar panels  generating less electricity than you are consuming.

Do I need a solar battery if I have solar panels?

While not a necessity, a solar battery can significantly enhance the efficiency of your solar panel system. It allows you to store excess energy for later use, reducing your reliance on the grid and saving on electricity costs. With Feed In tariffs reducing and energy prices rising, the cost benefit of battery stored energy is more compelling.

How long do solar batteries last?

The lifespan of a solar battery varies depending on the type and brand. The Lithium Ion Phosphate models have an average warranty of 10 years. Expected life span is greater than this and will depend on many factors such as installation location and how many cycles and speed of the cycles the battery has been used.

What types of solar batteries are available?

The most common types are lead-acid, lithium-ion, and saltwater batteries. Lithium-ion batteries are currently the most popular due to their higher efficiency and longer lifespan.

How much do solar batteries cost?

Prices have plummeted in 2024. We have been surprised at the large cost reductions recently. Most brands have experienced a 20% price reduction compared to last year. The cost varies depending on the type, capacity, and brand of the battery. Ask our friendly staff about the costs of different brands and their recommendations for your home.

What additional costs are there for installing solar batteries?

We must strictly follow the Australian Standards for installing batteries which may incur additional costs. 

AS/NZS 5139:2019 - Electrical Installations – Safety of battery systems for use with power conversion equipment: This standard provides requirements and guidelines for the safe installation of battery systems connected to inverter energy systems. It covers various aspects of installation, including the selection of battery technology, system design, installation requirements, and safety measures. To ensure we quote correctly if we are unsure we will request a site inspection before finalising the quote.

Are solar batteries environmentally friendly?

Solar batteries are more environmentally friendly than relying on fossil fuels, as they allow for greater use of renewable solar energy. However, their environmental impact also depends on how they are manufactured and disposed of at the end of their life. 

How much maintenance do solar batteries require?

Solar batteries generally require minimal maintenance. However, it's important to regularly check them and ensure they are operating correctly. Some batteries, like lead-acid, may require more maintenance than others, like lithium-ion.

Can I add a solar battery to my existing solar panel system?

Yes, in most cases, you can add a solar battery to your existing solar panel system. It’s best to consult with a solar energy expert to determine the best way to integrate a battery into your current setup. We will ask questions about your current inverter makes and model and the age of the system. We will try to integrate your existing panels into the new system, if its in your best interests.

How do I choose the right solar battery for my home?

Consider factors like capacity, lifespan, warranty, cost, and compatibility with your existing solar panel system. It's advisable to call UV power and discuss the many options available.  Every home and family has specific needs and we can guide you towards the best choice to suit your needs.

Are Lithium batteries the best option?

Lithium Iron Phosphate (LiFePO4) batteries, also known as LFP batteries, are considered better in several aspects compared to other types of lithium-ion batteries, such as Lithium Cobalt Oxide (LiCoO2) or Lithium Nickel Manganese Cobalt Oxide (LiNiMnCoO2), for the following reasons:

  1. Safety and Stability: LFP batteries are known for their thermal and chemical stability, which greatly enhances their safety. They are more resistant to temperature-related failures and less likely to experience thermal runaway, a condition where the battery generates excessive heat leading to fire or explosion.
  2. Long Cycle Life: LFP batteries typically have a longer cycle life compared to other lithium-ion batteries. They can endure more charge and discharge cycles before their capacity significantly degrades, making them more suitable for applications where frequent charging and discharging are required.
  3. Environmental Friendliness: LiFePO4 batteries are more environmentally friendly. They do not contain cobalt, a toxic and scarce material often used in other lithium-ion batteries. This makes LFP batteries a more sustainable choice with a lower environmental impact.
  4. Wide Temperature Range: LFP batteries perform well under a wide range of temperatures, maintaining both their performance and longevity. This makes them suitable for use in a variety of environments.
  5. Flat Discharge Curve: The discharge curve of LFP batteries is relatively flat, meaning that they can provide a consistent voltage output throughout the majority of their discharge cycle. This consistent performance is advantageous in many applications.
  6. Low Self-Discharge Rate: LFP batteries have a lower self-discharge rate than many other lithium-ion batteries, meaning they retain their charge longer when not in use.
  7. Cost-Effectiveness: Although the initial cost may be higher than some other types of batteries, the longer lifespan and reliability of LFP batteries can make them more cost-effective in the long run.

More questions?

If you have more questions about solar home batteries, feel free to reach out one of our specialists for personalised advice and information.

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