Producing hydrogen by electrolysis to ensure passage of the minimum electrical load

The aim of the study is to expand the adjustment range of combined heat and power (CHP) plants working in cogeneration mode and provide the reduction in electricity supply during the hours of minimum electrical load at night due to the production of hydrogen by water electrolysis and its use during the peak load hours at CHP plants in fuel cells (FC) or as a separate commercial product. The use of electrolysis to produce hydrogen during the minimum load hours allows the CHP plant to operate in cogeneration mode when passing the minimum load. The excess of generated electricity is used to produce hydrogen and oxygen. The possibilities of using hydrogen for its subsequent combustion in the furnace of existing steam boilers, as well as for obtaining peak energy in fuel cells, are considered. The expedient limits for changing the supply of electricity from the CHP plant depending on the level of heat load are determined, and an assessment of the effectiveness of various technological schemes for the use of hydrogen is given.