Work

An Advanced Regulatory Control Structure for the Flexible Operation of Alkaline Water Electrolyzers in the Day-Ahead Electricity Market

Year: 2026

Type: article

Abstract: High Resolution Image Download MS PowerPoint Slide To facilitate large-scale green hydrogen production, manufacturers are moving toward pressurized and strongly coupled topologies, where multiple electrolyzers share the same processing equipment. This coupling increases the control challenges regarding temperature and safety-critical gas purity constraints. In this paper, we develop two advanced regulatory control elements aimed at these constraints and embed them in a plantwide control structure for such systems. We show in dynamic simulations that our approach achieves nearly the same production efficiency as with an explicit optimization layer while being inherently safer compared to reference control structures. We further show that it can extend the operating limits by up to 50% compared to simpler regulatory control layers, significantly enhancing both flexibility and profitability in the day-ahead electricity market.

Source: Industrial & Engineering Chemistry Research

DOI: 10.1021/acs.iecr.5c04232

Authors: Lucas Cammann, Anushka Perera, Vidar Alstad, Johannes Jäschke

Institution: Norwegian University of Science and Technology

Language: English

Topic: Hybrid Renewable Energy Systems

Subfield: Energy Engineering and Power Technology

Field: Energy

Domain: Physical Sciences

SDGs: Affordable and clean energy, Industry, innovation and infrastructure

Open Access status: hybrid

Estimated APC paid: $4,500