公开(公告)号：EP4177772A1

公开(公告)日：2023-05-10

申请号：EP22844625.8

申请日：2022-08-19

申请人： STATE GRID BLOCKCHAIN TECHNOLOGY (BEIJING) CO., LTD. ,  Beijing Power Exchange Center Co., Ltd. ,  State Grid Digital Technology Holding CO., LTD ,  State Grid Corporation of China (SGCC) ,  Jiangxi Power Exchange Center Co., Ltd. ,  Liaoning Power Exchange Center Co., Ltd. ,  East Inner Mongolia Power Exchange Center Company Ltd.

发明人： XIE, Kai ,  WANG, Dong ,  XIE, Xian ,  WANG, Hejian ,  LI, Da ,  XIE, Wen ,  JI, Shijie ,  LIU, Yonghui ,  ZHANG, Nan ,  XUAN, Jiaxing ,  SUN, Tian ,  BAI, Desheng ,  ZHANG, Shengnan ,  LI, Xin ,  CHEN, Gang ,  JIA, Haiqing ,  ZHANG, Zhe ,  LIANG, Hexiao ,  LI, Qingchun ,  FAN, Kun ,  LU, Shengzhi ,  YANG, Chao ,  ZHAO, Liang ,  FENG, Jingli ,  JIA, Fan ,  XING, Tong ,  ZHAO, Lihua ,  LI, Guomin ,  SU, Zhan

IPC分类号： G06F17/11

摘要： The present disclosure provides a blockchain-based green power certification method, apparatus, and system, to pre-process obtained basic data to obtain proof of existence data, certify the proof of existence data from a production side and a consumption side by using a certification chain and a token chain respectively, and obtain a green power attribute certificate and a green power consumption label if the certification is passed; generate a unique digital identifier for the green power attribute certificate and the green power consumption label separately based on a non-fungible token (NFT), which realizes non-interchangeability, indivisibility, and other characteristics of the certificate and the identifier; and supervise and verify a certification process by using a chain of custody, and generate a corresponding unique blockchain identifier for the certification chain, the token chain, and the chain of custody separately through multi-chain interaction, so as to realize data interaction between blockchains. This resolves problems of an inaccurate certification mechanism of renewable energy, and information asymmetry and data opaqueness in attribute certification and consumption evaluation processes of the renewable energy.

公开(公告)号：EP4089616A1

公开(公告)日：2022-11-16

申请号：EP22726254.0

申请日：2022-01-21

申请人： STATE GRID BLOCKCHAIN TECHNOLOGY (BEIJING) CO., LTD. ,  State Grid Digital Technology Holding CO., LTD. ,  State Grid Corporation of China

发明人： WANG, Dong ,  JIANG, Wei ,  LI, Da ,  XUAN, Jiaxing ,  LI, Guomin ,  WANG, Hejian ,  SHI, Xin ,  LI, Jiangtao ,  SU, Zhan ,  ZHOU, Lei ,  ZHAO, Lihua ,  JIA, Fan

IPC分类号： G06Q30/06

摘要： A blockchain-based transaction system for a green certificate includes an audit node, a proxy node, and an off-chain node. The proxy node is used by a power producer and a purchaser; the audit node verifies qualification information of the power producer on the proxy node, and send a green certificate to the power producer on the proxy node; the off-chain node predicts a transaction price of a next transaction based on a historical transaction price and current environmental information; when receiving sale information of the power producer and purchase information of the purchaser, the proxy node sends the sale information, a digital signature of the power producer, the purchase information, and a digital signature of the purchaser to the off-chain node; the off-chain node matches the sale information and the purchase information, and sends successfully matched transaction information to the proxy node; the proxy node sends the successfully matched transaction information to a transaction smart contract; and the transaction smart contract performs transaction processing based on the transaction information. This application can improve a transaction turnover.