Improvements to Integrate High Pressure Alkaline electrolyzers for Electricity/112 production from Renewable Energies to Balance the GRID - ELYGRID Project

摘要

ELYGRID Projeci aims at contributing to the reduction of the Total Cost of hydrogen produced via electrolysis couple to Renewable Energy Sources, mainly wind turbines, and focusing on mega watt size electrolyzes (from 0,5 MW and up). The objectives are to improve the efficiency related to complete system by 20 % and to reduce costs by 25%. The work has been structured in 3 different parts, namely: cells improvements, power electronics, and balance of plant (BOP). Two scalable prototype electrolyzers will be tested in facilities which allow feeding with renewable energies (photovoltaic and wind). The main project tasks are: Development (synthesis) of advanced materials for electrolysis cell diaphragms/membranes to be used for field testing. Increase the efficiency of the stack by increasing operation temperature and electrolyte concentration. Identify technical improvements related to the Balance of Plant (BOP). Redesign power electronics, based on transistor instead of thyristor, less sensible to the electrical grid parameters. Field test of new stack with a 1,6 rn diameter membrane. Identification of technological market and local value-chain suppliers. Outreach, social awareness and promotion of alkaline electrolysis coupled with renewable energy sources through demonstration projects, field testing and integration.