Pros of battery storage
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Maximises your solar energy use: With a battery, you can use almost all the energy your solar panels generate by storing excess power and using it when needed, rather than exporting it back to the grid.
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Reduces electricity costs: A battery can decrease your reliance on the electricity grid, saving you money on your power bills. This is particularly beneficial during peak usage times when electricity rates are higher.
Cons of battery storage
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High initial cost: The upfront cost of a battery can be significant and might not provide an immediate financial return. For many, the cost might outweigh the benefits, so it's essential to calculate whether the savings on your electricity bills will cover the cost of the battery over its useful life.
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Efficiency losses: Batteries are not 100% efficient - some energy is lost during the process of charging and discharging. Typically, you can expect about a 10% loss in stored energy.
Other things to take into consideration
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Batteries must be installed according to specific safety standards and local regulations, including placement restrictions.
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Make sure your battery meets relevant safety and quality standards. Use batteries listed on approved lists like the Clean Energy Council's to ensure they have been tested and meet stringent criteria.
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Check the warranty conditions and expected lifetime of the battery, which can be influenced by factors like the number of charge cycles and total energy throughput.
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If your solar system is small and doesn't often produce excess energy, a battery might not be necessary. However, for larger systems or in areas with high electricity rates, a battery could offer significant benefits.
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Speak with your local solar power expert about whether a battery is suitable for your specific circumstances. They can provide insights into the potential benefits and drawbacks based on your energy needs and budget.