There is a lot of interest from people who want to add batteries to their solar electric systems. We were one of the first companies in New Zealand to install the Enphase AC Battery and have now completed many installations with batteries. We also offer Storion SMILE and BYD batteries and are certified installers for the Tesla Powerwall and Selectronic inverters from Australia.
Like micro inverters, the batteries we supply offer significant safety advantages. We all hope that nothing will go wrong but Enphase, Storion, and BYD have made safety a standout strength. They use a super safe chemistry and construction (Lithium Iron Phosphate) which you can learn about here and a see video of Enphase testing here.
We are also Certified Tesla Powerwall Installers, however the Tesla Powerwall is not quite as safe, because it uses automotive Lithium battery technology, but the cell density is much greater giving a very compact unit for its storage capacity.