Study: Waste Heat Systems Offer Best Hydrogen Production Efficiency Compared to Wind, Solar and Grid

News Flash

  • A new study by Egyptian researchers presents techno, economic and environmental assessment of hydrogen production systems using low (PEM, Proton exchange membrane) and high temperature electrolyzers (SOEC, solid oxide electrolyzer cell) powered by different energy sources.
  • These sources are PV panels, wind turbines, Rankine cycle based on waste heat recovery, and electricity from grid.

The results indicate that the highest overall efficiency is obtained using waste heat systems at 22.91%, and the low efficiency is 11.6% for PV systems. The LCOH varies from 1.19 to 12.16 $/kg, while the LCOCH varies from 5.03 to 17.1 $/kg. The lowest value is obtained when waste heat is employed, followed by the grid, PV panels, and wind turbines.

Wind turbine systems are not recommended at selling prices of 8 and 10 $/kg, but the waste heat system shows good potential for an investment opportunity. Finally, according to the system configurations, annual CO2 emissions reduction ranges from 4.81 to 1365 tons and carbon credit gain (CCG) from 192 to 54,600 $.

Link to the paper HERE 

Author: Bryan Groenendaal

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