Haichen Energy Storage said its Shandong long-duration storage industrial park in Heze Luxi New Area has entered mass production. The world's first integrated park focused on long-duration storage has total investment of over 13 billion yuan and, at full capacity, will produce 30 GWh/year of 1,175 Ah long-duration storage cells and 20 GWh/year of systems built around 6.25 MWh units. Haichen said the scale will drive large-scale deliveries of lithium long-duration storage globally.