Nature EnergyPub Date : 2026-10-05DOI: 10.1038/s41560-026-02147-x
Daniel M. Kammen, Mariusz Baranowski, Piotr Jabkowski, Shreyashree Dutta
{"title":"From gigawatts to critical mineral demands for EU solar and wind","authors":"Daniel M. Kammen, Mariusz Baranowski, Piotr Jabkowski, Shreyashree Dutta","doi":"10.1038/s41560-026-02147-x","DOIUrl":"https://doi.org/10.1038/s41560-026-02147-x","url":null,"abstract":"Decarbonizing the European Union’s energy system requires shifting from fossil fuels to material-intensive renewable infrastructure, yet the continental mineral demands of legally binding targets remain poorly quantified. Here we show that expanding solar, onshore and offshore wind capacity across the 27 member states through 2050 generates unprecedented demand for copper, zinc, silicon and rare earth elements, with supply-chain exposure highly dependent on the chosen technology pathway. Through three scenario-based projections, we find that pathways prioritizing offshore wind maintain rare earth element exposure near full-target levels (69.2 kilotonnes) even when solar and onshore deployment falls short, as these elements are technologically embedded in direct-driven turbine generators. These findings reframe the clean energy transition as a continental materials procurement challenge where mineral security functions as a binding feasibility constraint. Delivering climate goals requires institutionalizing material stress tests in national deployment plans, establishing strategic component reserves and actively securing international midstream processing partnerships.","PeriodicalId":19073,"journal":{"name":"Nature Energy","volume":"36 1","pages":""},"PeriodicalIF":56.7,"publicationDate":"2026-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149087804","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Nature EnergyPub Date : 2026-09-22DOI: 10.1038/s41560-026-02129-z
James R. Buchen,Teng Wang,Braden K. Geiger,Naama Y. Gluz,Maurice Artoul,Jean-Philippe Hiegel,Ben Achrai,Brian P. Setzler,Yushan Yan
{"title":"A Ni(OH)2 symmetric battery cell for hydroxide exchange membrane-based direct air capture of CO2","authors":"James R. Buchen,Teng Wang,Braden K. Geiger,Naama Y. Gluz,Maurice Artoul,Jean-Philippe Hiegel,Ben Achrai,Brian P. Setzler,Yushan Yan","doi":"10.1038/s41560-026-02129-z","DOIUrl":"https://doi.org/10.1038/s41560-026-02129-z","url":null,"abstract":"","PeriodicalId":19073,"journal":{"name":"Nature Energy","volume":"58 1","pages":""},"PeriodicalIF":56.7,"publicationDate":"2026-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149022300","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Nature EnergyPub Date : 2026-09-21DOI: 10.1038/s41560-026-02146-y
{"title":"Rethink data centre planning","authors":"","doi":"10.1038/s41560-026-02146-y","DOIUrl":"10.1038/s41560-026-02146-y","url":null,"abstract":"The rapid expansion of data centres is challenging power systems and planning processes to keep pace.","PeriodicalId":19073,"journal":{"name":"Nature Energy","volume":"11 10","pages":"1383-1383"},"PeriodicalIF":70.1,"publicationDate":"2026-09-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.nature.comhttps://www.nature.com/articles/s41560-026-02146-y.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149222826","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Nature EnergyPub Date : 2026-09-17DOI: 10.1038/s41560-026-02126-2
Christian Rumpelnik, Behnam Zakeri, Kavita Surana
{"title":"Spatially informed demand-side policies for green hydrogen diffusion in Europe","authors":"Christian Rumpelnik, Behnam Zakeri, Kavita Surana","doi":"10.1038/s41560-026-02126-2","DOIUrl":"https://doi.org/10.1038/s41560-026-02126-2","url":null,"abstract":"Green hydrogen faces an implementation gap: demand substantially lags policy ambitions. Here, combining an installation-level model of green hydrogen demand with an original database of >14,000 potential offtakers in Europe, we show that, conditional on diffusion patterns mirroring natural gas power generation (a historical analogue), demand-side spatial considerations are critical for closing this gap. Spatial spillovers—where local adoption increases adoption likelihood nearby—strongly shape diffusion, and their effect rises (>20-fold) when green hydrogen is not cost competitive. Spillover potential is concentrated in Central–Western Europe and hard-to-abate sectors: over half of the 10% most central installations are located in five German or Belgian industrial regions. Spatially informed policies deliver superior outcomes: targeting the most central offtakers improves policy cost-effectiveness by up to 41% (€0.96 kg−1) in a size, sector and cost-controlled setting and 15% (€0.20 kg−1) when following the European Hydrogen Bank auction format.","PeriodicalId":19073,"journal":{"name":"Nature Energy","volume":"1 1","pages":""},"PeriodicalIF":56.7,"publicationDate":"2026-09-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149010459","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Nature EnergyPub Date : 2026-09-15DOI: 10.1038/s41560-026-02130-6
Shang Jiang (, ), Peixin Zhu (, ), Yanting Liu (, ), Dehui Deng (, )
{"title":"A 250-kilowatt system for co-production of hydrogen and fresh water from seawater","authors":"Shang Jiang \u0000 (, ), Peixin Zhu \u0000 (, ), Yanting Liu \u0000 (, ), Dehui Deng \u0000 (, )","doi":"10.1038/s41560-026-02130-6","DOIUrl":"10.1038/s41560-026-02130-6","url":null,"abstract":"Hydrogen production from seawater is attractive given its abundance, but direct seawater electrolysis is challenging due to the poor stability and low energy efficiency. Here we report the co-production of hydrogen and fresh water from seawater by coupling alkaline water electrolysis with low-temperature desalination, wherein low-grade waste heat from the electrolyser drives seawater distillation to generate fresh water for both electrolysis and external use. A 20-kW industrial pilot system achieved co-productivities of 3.8 Nm3 h−1 H2 and 1.2 kg h−1 fresh water with stable operation for 100 days. Scaling up to 250 kW achieved 48 Nm3 h−1 H2 and 31.6 kg h−1 fresh water, with a 14.4% improvement in system electrical efficiency relative to alkaline electrolysis of fresh water alone. Techno-economic analysis of the coupled process indicates higher profitability than the traditional tandem process of desalination followed by electrolysis. Given its abundance, seawater is an attractive feedstock for hydrogen production, but direct electrolysis is hindered by side reactions and corrosion. Here the authors couple alkaline electrolysis with low-temperature desalination, using waste electrolyser heat to distil seawater into a fresh water feed, enabling stable, scalable performance.","PeriodicalId":19073,"journal":{"name":"Nature Energy","volume":"11 10","pages":"1490-1499"},"PeriodicalIF":70.1,"publicationDate":"2026-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149010524","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Nature EnergyPub Date : 2026-09-15DOI: 10.1038/s41560-026-02136-0
Jonathan G. Love
{"title":"A unified distillation and electrolysis system","authors":"Jonathan G. Love","doi":"10.1038/s41560-026-02136-0","DOIUrl":"10.1038/s41560-026-02136-0","url":null,"abstract":"Seawater is an attractive feedstock for hydrogen production that overcomes community concerns about fresh water; however, electrolysis of seawater remains challenging. Now, a coupled alkaline water electrolysis and vacuum distillation in a unified process overcomes those challenges by using waste heat to treat seawater, enabling 250 kW-scale efficient co-production of hydrogen and fresh water.","PeriodicalId":19073,"journal":{"name":"Nature Energy","volume":"11 10","pages":"1390-1391"},"PeriodicalIF":70.1,"publicationDate":"2026-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149021517","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Nature EnergyPub Date : 2026-09-15DOI: 10.1038/s41560-026-02141-3
Bastian Weißenburger, Lukas Karkossa, Annegret Stephan, Russell McKenna
{"title":"Exploring hydrogen pipeline costs by considering regional geographical and political characteristics","authors":"Bastian Weißenburger, Lukas Karkossa, Annegret Stephan, Russell McKenna","doi":"10.1038/s41560-026-02141-3","DOIUrl":"https://doi.org/10.1038/s41560-026-02141-3","url":null,"abstract":"Transporting hydrogen using pipelines is becoming increasingly relevant in the energy system, yet current cost estimates typically rely on simplistic approaches that overlook region-specific characteristics, leading to potential miscalculation of costs. Here we examine hydrogen pipeline costs by incorporating regional geographical factors, such as land use, topography and existing infrastructure, together with political-economic factors represented through country-specific weighted average costs of capital. Using a geographic information system-based model, we demonstrate that the regional levelized cost of transportation can vary by up to a factor of three. Comparing our approach with conventional ones based on uniform detour factors in an existing European energy system analysis framework shows substantial deviations in trade flows and highlights the relevance of this work. We provide cost and route data for 4,900 potential global pipeline routes. Our findings yield insights for further research and stakeholders when assessing the economic viability of hydrogen as a competitive energy carrier.","PeriodicalId":19073,"journal":{"name":"Nature Energy","volume":"217 1","pages":""},"PeriodicalIF":56.7,"publicationDate":"2026-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149010527","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}