![]() A box of electronics called a charge controller to ensure the batteries charge and discharge correctly.Į. This is great in theory… however there are 3 big problems with taking this off-grid route:ġ) Your system will be 2 to 3 times more expensive because you need to buy:ī. Here’s how it is done:ġ) Buy yourself a big bank of batteries along with your panels.Ģ) Use these batteries to store any excess solar electricity when the sun is blazing.ģ) Later in the day, when the sun is not beating down, you can get your electricity from that bank of batteries. “Hmmm… Why do I need a connection to the electricity grid at all?” If you are thinking of adding a mini solar power station to your roof, then at some point you’ll probably ask yourself this question: Many folks accuse me of being a government propagandist for cautioning people about dropping tens of thousands to go off grid! Trust me – I’ve worked for the government in my CSIRO days – and I never want to take their money ever again! To show that I’m not totally prejudiced against batteries, I’ve also written another article about hybrid solar (AKA grid connect solar + batteries) which, in my opinion, is a much better option for most Australians who want to decrease or remove their reliance on the grid. ![]() Sidenote: I’ve taken a lot of heat from people for this article.
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