The Autumnal Equinox, when the day and night are of approximately equal duration occurs on 22nd September every year.

Inspired by this phenomenon and in support of the Earth Day movement, Global Energy Storage Alliance chose this day in 2017 as World Energy Storage Day (WESD) to celebrate the role energy storage technologies can play in enabling greener grid and cleaner transportation. Tune into the event to learn, how technology breakthroughs, manufacturing scaleup, business model & policy innovation are poised to make this the decade for advanced energy storage.


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Date events
22 September 2021


Inès van Oldeneel

Business & Market Development Officer

+32 2 400 10 00