A Load-Managing Photovoltaic System for Driving Hydrogen Production

Joseph A. Azzolini, Meng Tao, Kathy Ayers, Jackson Vacek

Research output: Chapter in Book/Report/Conference proceedingConference contribution

8 Scopus citations


The use of hydrogen as a zero-emission fuel and energy storage medium has the potential to play an increasing role in the decarbonization of our energy and transportation infrastructures when produced using renewable energy resources. This work proposes a load-managing photovoltaic (PV) system for driving hydrogen production that eliminates the need for power electronics without sacrificing critical features like maximum power point tracking or voltage regulation. In the proposed system, each electrolyzer stack is operated independently, rather than operating all the stacks as a single unit, allowing the system to dynamically respond to changes in available PV power. This methodology was tested in simulation by analyzing the performance of two commercial electrolyzers, each coupled with a PV array. The proposed system was able to extract over 99.5% of the available energy from the PV array, outperforming the single-unit power electronics-based approach. The compounding benefits of reducing cost and improving energy yield provide a competitive solution for PV-driven hydrogen production.

Original languageEnglish (US)
Title of host publication2020 47th IEEE Photovoltaic Specialists Conference, PVSC 2020
PublisherInstitute of Electrical and Electronics Engineers Inc.
Number of pages6
ISBN (Electronic)9781728161150
StatePublished - Jun 14 2020
Event47th IEEE Photovoltaic Specialists Conference, PVSC 2020 - Calgary, Canada
Duration: Jun 15 2020Aug 21 2020

Publication series

NameConference Record of the IEEE Photovoltaic Specialists Conference
ISSN (Print)0160-8371


Conference47th IEEE Photovoltaic Specialists Conference, PVSC 2020


  • energy storage
  • hydrogen production
  • load management
  • load matching
  • photovoltaic systems
  • water electrolysis

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Industrial and Manufacturing Engineering
  • Electrical and Electronic Engineering


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