State Grid Digital Technology Holding Co., Ltd.

State Grid Corporation of China

State Grid Blockchain Technology (beijing) Co., Ltd.

State Grid Xiong'an Financial Technology Group Co., Ltd.

State Grid Henan Information & Telecommunication Company

Jiangxi Power Exchange Center Co., Ltd.

Beijing Power Exchange Center Co., Ltd.

Liaoning Power Exchange Center Co., Ltd.

East Inner Mongolia Power Exchange Center Company Ltd.

Information and Communication Branch of State Grid Fujian Electric Power Co., Ltd.

Jiaxing Xuan

Dong Wang

Da Li

Guomin Li

Wei Jiang

Lei Zhou

Xin Shi

Lihua Zhao

Fan Jia

Zhan Su

Hejian Wang

Yang Wang

Shuai Chen

Nan Zhang

Liang Zhao

Zhe Zhang

Kai Xie

Xian Wei Zhang

Tong Xing

Zheng Jia

Chao Yang

Desheng Bai

Yonghui Liu

Jiangtao Li

Junwei Ma

Jingli Feng

Shengzhi Lu

Hexiao Liang

Xin Li

Shaoqin Han

Gang Chen

Wen Xie

Kun Fan

Yuxiang Cai

Qingchun Li

Yanxu Dong

Tian Sun

Huafeng Yan

Haiqing Jia

Zhen Xue

Xinyan Wang

Shengnan Zhang

Shijie Ji

Dongwei Yang

Ping Zhen

Wanli Ma

Xian Xie

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.

Blockchain-based green power certification method, apparatus, and system

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, and send a green certificate to the power producer; the off-chain node predicts a transaction price of a next transaction; 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.

Blockchain-based transaction system for green certificate

Provided are a method and device employing a smart contract to realize identity-based key management. The method comprises: running a smart contract, and executing a key management process, wherein the key management process comprises: when a key of a target user requires an update and the target user is not a supervised user, generating a master public key and a master private key pertaining to the target user; acquiring, from a blockchain, identity information of the target user; generating a first target private key according to the master public key and the master private key pertaining to the target user and the identity information of the target user; and replacing a current private key of the target user with the first target private key.

Method and device employing smart contract to realize identity-based key management

Disclosed is a blockchain-based electricity charge settlement method and system for an energy storage station. A trusted terminal directly collects two-way electricity quantity data of an energy storage station, and distributes the two-way electricity quantity data to a blockchain; and a consensus node of a power-consuming enterprise and a consensus node of an energy storage station investment operator in the blockchain perform consensus calculation on the two-way electricity quantity data, and write the two-way electricity quantity data into the blockchain after reaching a consensus. The two-way electricity quantity data is accurate and cannot be tampered with, ensuring authenticity of the two-way electricity quantity data. A smart settlement contract is executed, an electricity charge settlement result is generated automatically to ensure authenticity of the electricity charge settlement result, and the electricity charge settlement result is written into the blockchain to prevent the electricity charge settlement result from being tampered with.

Blockchain-based electricity charge settlement method and system for energy storage station

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Beijing, China

Jiaxing Xuan