{"id":17232,"date":"2016-11-09T14:38:37","date_gmt":"2016-11-09T13:38:37","guid":{"rendered":"http:\/\/en.sma-sunny.com\/?p=17232"},"modified":"2022-08-30T09:46:19","modified_gmt":"2022-08-30T07:46:19","slug":"service-tip-setting-up-sunny-boy-storage-to-control-export-of-sma-pv-inverters","status":"publish","type":"post","link":"https:\/\/www.sma-sunny.com\/en\/service-tip-setting-up-sunny-boy-storage-to-control-export-of-sma-pv-inverters\/","title":{"rendered":"Service Tip: Setting up Sunny Boy Storage to control export of SMA PV inverters"},"content":{"rendered":"

AC-coupled battery storage allows any new or existing PV system to flexibly add battery storage. The new Sunny Boy Storage is the simplest solution for adding battery storage to PV systems using new high voltage batteries such as the LG Chem RESU10U. However when adding battery storage to a PV system, grid operators may place additional requirements on the system such as limiting the export of energy from both the battery and PV inverters to the grid. With its smart capabilities, the Sunny Boy Storage is able to limit export of energy to the grid not only for itself, but also for up to three SMA PV inverters.<\/strong><\/p>\n

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Configuration of the Sunny Boy Storage <\/strong><\/p>\n

One advantage of the Sunny Boy Storage and its AC-coupling is it provides flexibility for deciding where to install the battery and inverter. The diagram below shows the configuration which will allow the Sunny Boy Storage to control the export of either a Sunny Boy or Sunny Tripower. The Sunny Boy Storage is able to control the output for a maximum of 3 additional SMA inverters. For systems which do not use a Sunny Home Manager, it is recommended to connect the SMA Energy Meter directly to the Sunny Boy Storage.<\/p>\n

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Connection of a Sunny Boy Storage with either a Sunny Boy or Sunny Tripower<\/p><\/div>\n

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At the moment, only one Sunny Boy Storage can be installed per solar system. In a three phase system, the Sunny Boy Storage is connected to one of the phases. It should be remembered that there is no financial benefit for residential energy consumers for using three phase compared to single phase storage. This is because residential systems are both billed and controlled according to their net consumption or generation. By installing single phase storage with three phase generation, the customer is able to get the maximum benefit from their storage but with lower capital costs since single phase inverters are cheaper than three phase inverters.<\/p>\n

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Setting up Zero Export with the Sunny Boy Storage<\/strong><\/p>\n

Export limitation for a PV system can be achieved with the Sunny Boy Storage and SMA inverters with Webconnect functionality.<\/p>\n

For an export limitation solution you will need:<\/p>\n