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Choosing a battery system
What makes battery storage attractive now?
If the sun is shining our solar power systems are generating lots of power, only trouble with this is that most of us are at work instead of being at home using the free power. With a standard grid connect system the excess power is exported to the electricity grid, earning us a credit on our bill. With a fall in the amount we get paid for the electricity sold back to the grid (feed-in tariff) it is much more cost effective to use this electricity in the house. With a battery storage system, the excess electricity can be used to charge batteries. This means when you come home from work you can use the electricity from the batteries instead of paying for electricity from the grid.
Things to consider
There are two main types of battery you could use
Lead Acid. (Tubular Gel and AGM)
This technology has been around for many years and is commonly used in off grid power systems. Lead acid batteries are cost effective and a great way to supply a reliable power source to any application. A down side to lead acid batteries is they can be heavy and take up lots of space.
The new buzz word in the solar world is Lithium-ion batteries. The main advantage of these batteries is their size and usability. These batteries can be discharged and charge to much higher rates than lead acid batteries which make them perfect for running households every night.
When it comes to sizing your battery system it would be a great idea to talk to one of our system designers, they will happily design your system free of charge. Your battery should be sized to store enough electricity to run your house during the night and early morning If you want to use a battery system in off grid situation you will need a much bigger battery bank as you want to have the grid as a backup.
Warranty and expected lifetime
You want a battery with a lifetime of 10 years, all our recommended batteries come with a manufacturers recommendation otherwise the warranty could be void.