2025 - Sustainable Industrial Processing Summit
SIPS2025 Volume 10. Intl. Symp on Energy, Carbon, Battery, Biochar and Agroforestry
| Editors: | F. Kongoli, S.M. Atnaw, H. Dodds, T. Turna, J. Antrekowitsch, G. Hanke, K. Aifantis, Z. Bakenov, C. Capiglia, V. Kumar, A.U.H. Qurashi, A. Tressaud, R. Yazami, M. Giorcelli |
| Publisher: | Flogen Star OUTREACH |
| Publication Year: | 2025 |
| Pages: | 316 pages |
| ISBN: | 978-1-998384-56-3 (CD) |
| ISSN: | 2291-1227 (Metals and Materials Processing in a Clean Environment Series) |
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NEW PERSPECTIVES IN THE PRODUCTION OF GREEN H2: THE SedesH PROPOSAL
Gioele Magaldi1; Davide Rossi2;1SEDESH SRL, Perugia, Italy; 2DEVELOPMENT COOPERATION ASSOCIATION BAZH.I, Maserada Sul Piave, Italy;
Type of Paper: Regular
Id Paper: 255
Topic: 17
Abstract:
More than 190 nations have committed to limiting global warming to below 2°C by reducing greenhouse gas emissions (UNFCCC), signing the Paris Agreement. Recent conferences (COP28 and COP29) have focused on renewable energy transitions, carbon markets, and climate finance (WRI). Solar, wind and hydropower represent more than 30% of new global power capacity to reduce the dependence on fossil fuels (IEA) and advance in green hydrogen, carbon capture and battery storage, which offer promising cleaner energy solutions (WEF) with significant investment in fusion energy research to unlock unlimited clean energy. However, the actual technical solutions are still deficient in the social, business and effectiveness areas because respectively the populations perceive them as a burden imposed from above rather than a consumer-led change imposed at their expense, the shift to green energy remains unprofitable without government incentives and trigger geopolitical tensions to secure critical resources, and current technologies are only “half green” and do not achieve their intended goals. In the field of green energy, the H2 technology still represents an obstacle in terms of competitiveness, lack of infrastructure, distribution and storage risks because of high pressure and low temperature conditions, uncompetitive price, investment risks and regulatory issues. In particular, the gray H2 (95%) is obtained from steam methane reforming (SMR) with CO and CO2 production without the possibility of carbon capture, while the blu H2 (3-4%) is also obtained from SMR, but thanks to Carbon Capture Storage system, the emissions of CO₂ can be reduced (56-90%) however not completely cancelled. The green H2 represent the only sustainable option because obtained exclusively from renewable sources such as wind, solar, and hydropower that support the electrolysis of water. The current global cost of green hydrogen ranges between 3 and 7 USD/kgH2, is deemed acceptable only for certain applications, such as in the power-to-liquids (PtL) industry and transportation sector [2]. Thus, to be economically viable for commercial and residential use, the price per kilogram should be below approximately 2 USD/kgH2 [2]. On this basis, Sedes H Company is successfully developing a new solution capable of producing massive green H2 from renewable energy with low cost (1E/Kg) because using existing infrastructures and in a safe way, because green H2 can be stored and distributed at 1 atm pressure and ambient temperature [4]. The so-called “Sedes H ecosystem” is mainly composed of an organic photovoltaic (OPV) paint, composed of conjugated polymers and/or molecules capable of generating electricity from the sun [3], whose excess could be used to power an electrolytic cell for green H2 development [4]. The green H2 so product could be stored and distributed in a versatile Inert Tank (IT) connected with a hydrogen station (Fuel Cells) for refuelling vehicles, placed outside any buildings or installed directly in existing and new vehicles, while it excess could be sold to other external users. In the end, the green H2 production can also be performed with chemical reactions using a specific device, called Sedes H-POT (little and big), that can produce water vapour and high-value metallic compounds for industrial sectors starting from water, commonly used metals and specific molecules (called here XY Sedes H molecules) [4]. The Sedes H's purpose is aimed at a new integrated concept of H2 low-cost production and could soon represent a great environmental and economic opportunity for human development. This target is well based on the estimated market size for energy production (2031) of 5.866 B and by the fact that in 2027 Sedes H will be listed on the NASDAQ.