It’s essentially a gravity-powered battery that can generate 12MW for up to 8 hours. Bonus points: locals call it "the waterfall that flows backward." Malabo’s engineers are experimenting with storage solutions that’ll make your smartphone jealous:
[pdf] In what is the Latin American country’s first tender for storage, the government Ministry of Mines and Energy’s Energy Mining Planning Unit (UPME) is seeking interested stakeholders including investors and auditors for the design, procurement, construction and operation and maintenance (O&M) for an electrical storage system in Colombia’s Atlantic region as well as associated infrastructure.
[pdf] Traditional Bedouin wisdom meets modern tech: just as camels store water for desert journeys, Qatar Gan's energy storage systems bank power for Qatar's growth spurts. Our battery farms could power 30,000 homes for a day – that's enough energy to brew 15 million cups of Qahwa!
[pdf]