As countries plan for their net zero targets, substantially more long duration energy storage will be needed to support the integration of variable renewable energy. Various storage technologies exist or are being developed. Of particular importance is pumped storage hydropower, a mature and proven technology that already provides around 90% of installed electricity storage globally. This session will focus on new developments in pumped storage hydropower, exciting policy announcements, and how the massive potential for pumped storage hydropower can be harnessed to drive forward the clean energy transition.