Optimal scheduling of a RES – Electrolyzer aggregator in electricity, hydrogen and green certificates markets

International Journal of Hydrogen Energy, Год журнала: 2024, Номер 78, С. 1099 - 1107

Опубликована: Июль 2, 2024

Язык: Английский

---

Identifying green hydrogen produced by grid electricity

International Journal of Hydrogen Energy, Год журнала: 2024, Номер 81, С. 654 - 674

Опубликована: Июль 26, 2024

Язык: Английский

---

Impact of expected cost reduction and lifetime extension of electrolysis stacks on hydrogen production costs

International Journal of Hydrogen Energy, Год журнала: 2024, Номер unknown

Опубликована: Авг. 1, 2024

The production of green hydrogen-based chemicals using renewable energy is essential for the decarbonization several sectors that are difficult to address through electrification. Various electrolysis technologies often considered sustainable hydrogen production. They therefore in a phase dynamic development. Currently, costs calculated on basis investment and lifetimes most recent components future development targets. impact ongoing developments during project lifetime neglected. However, these will have an estimation levelized cost hydrogen, which expected be non-neglectable. This paper proposes novel methodology incorporates evolving hydrogen. By integrating functions, presented approach allows precise estimations tailored individual stack replacements, adapting varying annual operating times. Moreover, project-specific can derived more accurate calculation costs. With this method, average capital reduction than 11% achieved all investigated compared neglecting technology developments. provides comprehensive understanding affect economics

Язык: Английский

---

Determining Signatures for Energy Mix Produced by Photovoltaic Systems and Wind Turbines

Applied Sciences, Год журнала: 2025, Номер 15(4), С. 1800 - 1800

Опубликована: Фев. 10, 2025

The article contains an analysis of power generation by a photovoltaic system with peak 3 MWp and wind turbine 3.45 MW. acquired time series generated was analyzed using traditional modern analytical methods. these two Renewable Energy Sources characterized separately then their mix. In this article, the signature defined as in state space over period one month. extracted from results cluster analysis. experiment clustering carried out into 10 classes. K-Means algorithm used to determine clusters variant without prior labeling classes method learning participation teacher. way, trajectories process were determined 10-state space. Knowing which class each data record belongs to, frequencies staying determined. computational presented may have great practical application balancing grid powered energy produced renewable sources.

Язык: Английский

---

Evaluating the Potential and Limits of Green Electrolysis in Future Energy Scenarios with High Renewable Share

Energies, Год журнала: 2025, Номер 18(7), С. 1654 - 1654

Опубликована: Март 26, 2025

Water electrolysis is a potential contributor to global decarbonization, enhancing the flexibility and resilience of electricity system enabling integration with different sectors, such as industry transportation, by acting an energy vector storage, well chemical feedstock. This study investigates hydrogen production in future national electric grid scenarios for Italy case study. It examines impact increasing photovoltaic wind capacities up five times 2019 levels, considering storage capacity 200 GWh. The feasibility fully meeting current consumption through these assessed overall capacities. Specific CO2 emissions associated are evaluated indicator environmental compared conventional steam methane reforming. In addition, levelized cost economic feasibility. Some limitations emerge when it considered sole way decarbonize production. Very high renewable shares required make alone feasible solution. Aiming maximize use curtailment conflicts maximizing electrolyzers’ utilization factor, thus, negatively affecting costs. Furthermore, since priority given stored meet demand, remaining insufficient produce entire demand most scenarios, particularly substantial supports grid, this reduces available electrolysis.

Язык: Английский

---

Multi-storage, multi-energy, and multi-policy optimization for hybrid green and grey hydrogen production: A regional study in China

Energy Conversion and Management, Год журнала: 2025, Номер 334, С. 119784 - 119784

Опубликована: Май 1, 2025

Язык: Английский

---

Journey to a sustainable future: The importance of renewable hydrogen in industrial and domestic applications

International Journal of Hydrogen Energy, Год журнала: 2024, Номер 99, С. 836 - 851

Опубликована: Дек. 20, 2024

Язык: Английский

---

An up-to-date perspective of levelized cost of hydrogen for PV-based grid-connected power-to-hydrogen plants across all Italy

Applied Energy, Год журнала: 2024, Номер 379, С. 124958 - 124958

Опубликована: Ноя. 29, 2024

Язык: Английский

---