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Delta’s Smart, Modular Battery Energy Storage System (Flex E3) Debut

By Nicky Callinan on April 22nd, 2015

Delta recently debuted its smart Battery Energy Storage System (Flex E3) at the Hannover Messe 2015 show in Germany.

Its highly integrated and flexible architecture offers home-owners and small businesses enhanced returns on renewable energy investments.

Delta’s core competencies in high-efficiency power electronics, building automation and in-house component integration enable its Flex E3 to offer energy efficiency of  >96% and a smart-grid controller platform for optimal-cost energy storage and consumption.

Delta’s energy storage solution is an essential part of smart-grid-capable platforms for medium and small power installations in homes and small businesses as it is equipped with an intelligent controller that enables smart and constant interaction between renewable energy systems (solar PV, wind turbines and biogas power generators), the electricity grid and its embedded battery infrastructure in order to store energy at the lowest costs possible and even allow to sell electricity back to the grid in certain scenarios.

Delta Flex E3 provides a variety of system architectures for diverse customer needs with a single system offering storage capacity from 2.9 kWh to 3.7 kWh or with three systems in parallel offering up to 11.0 kWh depending on the selection of lead-acid or lithium-ion batteries. The system also features:

  • Delta’s own AC inverters which offer >96% energy conversion efficiency and nominal continuous power output of 2.34 kW for a single system or up to 7.0 kW for a 3 systems in parallel configuration.
  • Remote monitoring and management through its communication capabilities that support Ethernet, RS-485, CAN bus interfaces. Compatible with the monitoring software SOLIVIA Monitor (and its smartphone live app) for Delta’s PV inverters.
  • Built-in customized energy management modes for different customer requirements.