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On May 10th, 2015, the 4th China International Energy Storage Station Congress (ESSC 2015) was held in Shenzhen, China. Shandong Sacred Sun Power Sources Co., Ltd. (hereinafter referred to as the "Sacred Sun") was invited to attend the congress, and was awarded "the Best Supplier of energy storage batteries". Mr. Sui Yanbo, deputy General Manager of Sacred Sun(ups battery dealers), has delivered a keynote speech "Commercial Application Solutions of Energy Storage Systems with FCP Lead Carbon Batteries” at the congress.

Sacred Sun's FCP lead carbon battery, which has imported related technology of Furukawa , could achieve more than 4200 cycles at 70% DOD. Provided that one day one cycle, battery service life could up to 10 years. The cost per kw h of energy storage battery (storage battery procurement costs divided by the capacity of the battery can be released in life) was reduced to about 0.5 Yuan, almost close to the pumped storage. In addition, the charge-discharge conversion efficiency of the battery could reach up to 87%, and the maximum efficiency of related energy storage system could reach 80%.

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