日本关西电力公司（KEPCO）目前正在使用一个区块链(blockchain)平台来测试电力生产消费商（即自我消费一部分电力，并将剩余电力对外出售的发电商）和光伏系统业主可如何交易多余的电力。
KEPCO联合日本东京大学、日本软件开发商Nihon Unisys和三菱东京日联银行进行了这项研究。KEPCO将通过使用区块链技术，了解电力消费者和电力生产消费商之间如何进行交易，并根据从中所获得的知识技能，来确定剩余太阳能电力的价格。
KEPCO表示，使用区块链技术进行模拟交易，将有助于了解电力生产消费商如何向多个消费者提供电力，并确定交易的价格。
在这一测试项目中，Unisys负责平台的开发，KEPCO负责项目的实施，东京大学将对数据进行评估和总结。三菱东京日联银行则对使用区块链完成交易的过程提供建议咨询。
近来，将太阳能与区块链相结合的试点项目呈指数级增长。最近，世界能源理事会（World Energy Council）与普华永道（PwC）审计师事务所合作，采访了39位能源管理方面的高层领导人，试图确定区块链到底是在推动能源生态系统的演变还是变革。受访者们一致认为，尽管区块链已经激发了众多的能源机构努力进行创新，但要实现其充分的经济和技术潜力，还有很长的路要走。
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