# A Microgrid Trading Framework Based on PoC Consensus

**Authors:** Lianghaojie Zhou, Youquan Xian, Yipeng Yang, Jianyong Jiang, Peng Liu, Xianxian Li  
**arXiv:** [2310.07165](https://arxiv.org/abs/2310.07165)  
**Date:** 2023-10-11  
**Summary page:** https://www.summarizepaper.com/en/paper/2310.07165v1/

## Key points

- Blockchain-based distributed energy trading is a promising alternative to traditional centralized trading in the field of energy Internet.
- Existing power blockchain platforms face challenges such as low consensus efficiency and wastage of computing resources in public chain-based systems, and difficulties in attracting users and potential collusion between alliances in consortium chain-based systems.
- The authors propose a microgrid trading framework based on proof of contribution (PoC) consensus to address these issues.
- The framework aims to improve both the consensus efficiency of the blockchain and serve as an incentive mechanism to attract users to participate in the power blockchain.
- Verifiable random functions (VRF) are used to randomly select nodes based on their contribution value and weights in each round of consensus. These selected nodes form the next round's consensus committee.
- By incorporating PoC consensus and VRF-based node selection, the framework enhances both the efficiency and fairness of electricity trading within microgrids.
- Experimental results demonstrate that the proposed framework is effective, with reasonable contribution values designed.
- Users are motivated to actively participate in energy transactions through this framework, leading to a more equitable energy market.
- This research presents a novel approach for addressing existing challenges in energy trading platforms by leveraging PoC consensus and VRF-based node selection.
- The findings highlight the potential benefits of this microgrid trading framework for improving both efficiency and fairness within blockchain-based distributed energy trading systems.

## Summary

In the field of energy Internet, blockchain-based distributed energy trading is seen as a promising alternative to traditional centralized trading. However, existing power blockchain platforms face challenges such as low consensus efficiency and wastage of computing resources in public chain-based systems, and difficulties in attracting users and potential collusion between alliances in consortium chain-based systems. To address these issues, the authors propose a microgrid trading framework based on proof of contribution (PoC) consensus. This framework aims to improve both the consensus efficiency of the blockchain and serve as an incentive mechanism to attract users to participate in the power blockchain. The proposed framework utilizes verifiable random functions (VRF) to randomly select nodes based on their contribution value and weights in each round of consensus. These selected nodes form the next round's consensus committee. By incorporating PoC consensus and VRF-based node selection, the framework enhances both the efficiency and fairness of electricity trading within microgrids. Experimental results demonstrate that the proposed framework is effective, with reasonable contribution values designed. Through this framework, users are motivated to actively participate in energy transactions, leading to a more equitable energy market. Overall, this research presents a novel approach for addressing existing challenges in energy trading platforms by leveraging PoC consensus and VRF-based node selection. The findings highlight the potential benefits of this microgrid trading framework for improving both efficiency and fairness within blockchain-based distributed energy trading systems.