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.
McNae Energy and Solar is constantly evaluating the range of battery storage options coming onto the market. At this stage we still think batteries are too expensive. This is becuase you will not recover the initial cost of the battery within the 10-year warranty period of the battery. Unless you want to install a battery to give protection against power cuts we generally do not recommend the installation of any type of battery. They just don't pay for themselves yet.
Like micro inverters, the batteries we supply offer significant safety advantages. We all hope that nothing will go wrong but batteries do represent a fire hazard. Because of this, we strictly follow the AS/NZS 5139 Safety of Battery Systems installation standard. All our batteries also use a super safe chemistry and construction (Lithium Iron Phosphate) which you can learn about here.