The Rudong project is the world's first commercial scale deployment of a non-pumped hydro, gravitational energy storage system. An anticipated 80% round trip efficiency puts the EVx™ ahead of competing long duration technologies such as flow battery, thermal, and compressed air energy storage.
[pdf] The utility is procuring two grid-scale battery storage systems to the tune of EUR 48 million ($55.9 million). EPCG, Montenegro’s largest electricity provider, is investing in two four-hour battery energy storage systems (BESS) to strengthen grid resilience and balance supply and demand.
[pdf] Dutch startup Ore Energy has connected its iron-air battery to the grid in Delft, the Netherlands. The company announced the system is the first of its kind to be fully operational and grid-connected in the world, while also being the first fully-built in the European Union.
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