P2P Energy Exchanges for Lowering the Hydrogen Production Cost Using Realistic Electrolyzer Model

Abstract

Motivated by the net-zero emission policy targets, this paper aims at exploiting the benefits of peer-to-peer (P2P) energy exchanges in lowering the hydrogen (H2) cost in the active distribution networks. This paper also develops a detailed model for grid-integrated electrolyzer based on polarization curves, which addresses the non-linear conversion efficiency issues of this asset to provide realistic results. Simulation results demonstrate that 1) electrolyzer efficiency changes under different operating conditions which significantly depends on actual stack operation (actual cell voltage and current); 2) H2 could be produced at lower costs due to P2P energy exchanges by reducing the peers’ electricity demand, providing more available capacity of renewables at the customer side, and as a consequence reducing the market clearing price and produced H2 cost.