A two-kilowatt-hour Sonnen system, including inverter, will cost about $5000. Australian energy company Redflow believes its ZCell home battery system will outperform Tesla ’s similar product , the Powerwall , which has recently also launched in Australia . The difference between the two products is that the ZCell uses zinc - bromide “ flow ” technology , versus Australia ’s more traditional lithium - ion system ; apparently this allows ZCell users to discharge 100 % of the battery energy every day with minimal degrading ( unlike the battery which has a total capacity of approximately 5k discharge cycles ) . Competition in the Australian home energy market is certainly heating up , with Redflow , Tesla , and now Germany ’s Sonnen all competing for dominance in a market , which is seen as hugely promising due to the popularity of rooftop solar panels in the country .
Australian energy company Redflow believes its ZCell home battery system will outperform Tesla ’s similar product , the Powerwall , which has recently also launched in Australia . The difference between the two products is that the ZCell uses zinc - bromide “ flow ” technology , versus Australia ’s more traditional lithium - ion system ; apparently this allows ZCell users to discharge 100 % of the battery energy every day with minimal degrading ( unlike the battery which has a total capacity of approximately 5k discharge cycles ) . Competition in the Australian home energy market is certainly heating up , with Redflow , Tesla , and now Germany ’s Sonnen all competing for dominance in a market , which is seen as hugely promising due to the popularity of rooftop solar panels in the country .