For the purpose of enabling, democratizing, and reducing the fees of peer-to-peer energy trading for battery-powered devices, we propose ANKA as a fully decentralized energy marketplace for peers with battery-powered devices. ANKA utilizes state-of-the-art technologies, namely blockchain, smart contracts, and decentralized applications. Within this marketplace, users who possess surplus energy actively offer their excess energy for trading. Concurrently, consumers can readily explore the energy options available and make purchases according to their individual preferences while taking into consideration the location of the offered energy and voltage compatibility. In addition, we provide a comparison between a centralized traditional market and our proposed solution, identifying that the cost of deploying and operating ANKA is less than the centralized approach. We also position ANKA in comparison to the recent blockchain-based decentralized energy marketplaces by considering the metrics of blockchain type, scope, trading entities and the presence of third parties.

翻译：为了实现电池供电设备间点对点能源交易的普及化、民主化并降低交易费用，我们提出了ANKA——一个面向电池供电设备用户的完全去中心化能源交易市场。ANKA采用了区块链、智能合约和去中心化应用等前沿技术。在该市场中，拥有多余能源的用户可主动将剩余能源投入交易；同时，消费者能够根据个人偏好，结合能源供应位置和电压兼容性等因素，便捷地浏览可选能源并进行购买。此外，我们将中心化传统市场与所提方案进行对比，发现ANKA的部署与运营成本低于中心化方案。我们还通过考量区块链类型、应用范围、交易实体以及第三方参与程度等指标，将ANKA与近期基于区块链的去中心化能源交易市场进行了横向比较。