R&D Nester participated in the ICPEE2025 - 9^th International Conference on Power and Energy Engineering, which took place from 26 to 28 December 2025 in Chengdu, China. 

R&D NESTER'S CONTRIBUTION TO ADVANCING GREEN HYDROGEN RESEARCH

The conference, organised with support from Sichuan University, brought together researchers, industry professionals, and energy specialists to discuss the latest developments in power engineering, renewable integration, smart grids, and sustainable energy systems. 

R&D Nester presented the paper: "Simulation of Alkaline Water Electrolysis in DWSIM: An Open‑Source Comparison with Aspen‑Based Results".

This work develops and validates an alkaline water electrolysis model implemented in DWSIM, based on a reference model previously built in Aspen Plus.

The study demonstrates that open‑source platforms can accurately reproduce the electrochemical and thermodynamic behaviour of alkaline electrolysers, offering a robust and transparent alternative for green hydrogen production simulations.

Key outcomes include:

  * The development of a power‑controlled iterative solver, designed to reflect realistic industrial electrolyser operation;

  * A detailed analysis of how temperature, pressure, and electrical power influence electrolyser efficiency and hydrogen output;

  * Strong alignment between DWSIM and Aspen Plus results, with very high consistency across essential performance indicators.

This publication will be indexed in IEEE Xplore, Ei Compendex and Scopus (Elsevier), as well in other renowned databases.   

INTEGRATION IN THE GENESIS - GREEN HYDROGEN PROJECT

The paper presented at ICPEE2025 is part of the technical activities of GENESIS - Green Hydrogen Project (2024-2027), which aims to study, model, and demonstrate solutions for the production and integration of green hydrogen in the national energy system.

The presented research directly supports:

  * The development of advanced, high‑fidelity electrolysis models for predicting hydrogen production, efficiency, and energy consumption;

  * Operational analysis of Power‑to‑Hydrogen systems under diverse renewable and power‑supply conditions;

  * The creation of simulation tools that will enable GENESIS to evaluate real‑world integration scenarios, reinforcing Portugal's commitment to energy transition and system decarbonisation.

COMMITMENT TO INNOVATION AND OPEN SCIENTIFIC KNOWLEDGE

R&D Nester's participation in ICPEE2025 reaffirms its commitment to scientific excellence, technological innovation, and the promotion of open and accessible knowledge within the energy sector.

The development of open‑source modelling approaches, such as the one presented in this study, represents an important step in democratising advanced simulation tools and supporting the deployment of sustainable, high‑impact energy solutions.

For more information:

GENESIS Project @ R&D Nester website

ICPEE 2025 Conference website