As solar, wind and other renewable resources play a larger role on the power grid, renewables’ essential partner—energy storage—must keep pace to provide power at peak hours when the sun doesn’t shine, and the wind doesn’t blow.

Rechargeable zinc batteries offer an ideal energy storage solution; they can release power back to the grid for many hours or even days at a time. With numerous chemistries and design innovations, zinc batteries increasingly meet residential, commercial and microgrid energy storage market needs and demonstrate zinc’s capabilities and benefits in stationary storage.

COMMENTARY

One of the well-developed zinc battery chemistries is zinc-bromine flow, which proves ideal for both small commercial uses and for medium to large grid-sized applications. The energy is stored in a zinc bromide solution, which flows continuously past the electrodes, where it reacts and generates electricity. This liquid-based battery is non-flammable, long-lasting, fully recyclable and tolerates a wide range of temperatures. The batteries also are scalable for medium or large-scale projects.…

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