4 FAQs about AC energy storage control box

What are AC block energy storage systems?

Innovations in string inverter technology and software controls are giving rise to AC block energy storage systems. While DC blocks will continue to have their place in the energy storage market, AC blocks provide distinct advantages such as granular control, higher availability and shorter project development timelines.

Why do energy storage systems need a DC block?

AC blocks also provide higher availability, which is defined as the percentage of time an energy storage system is online and operating at its designed capacity. If a DC block's central inverter fails, a larger section of the energy storage system needs to be shut down to replace it.

How do energy storage enclosures integrate with the grid?

There are two primary configurations for integrating energy storage with the grid. The first is the AC block configuration, where string inverters are internalised in each energy storage enclosure. These inverters convert DC power from the batteries to AC, allowing the energy storage enclosure to directly interface with the grid.

Are AC blocks a good choice for energy storage project developers?

AC blocks have several advantages for energy storage project developers. First, the use of string inverters allows for decentralised and more granular control. This level of control can be leveraged using software to maximize energy throughput.

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