The Editors, coming from Academia, Karlsruhe Institute of Technology (DE) and University of Perugia (IT) and Research Organizations, SINTEF (NO) and Austrian Institute of Technology (AT), are all active in the field of energy storage and conversion. They are members, with leading roles, of the European Energy Research Alliance (EERA) Joint Programme Energy Storage, establishing a long-term coordinating research effort in the field of energy storage at European level. Finally, the Editors are leading partners in the European Union-funded project Storage Research Infrastructure Eco-System (StoRIES, #101036910) dealing with hybrid energy storage as a way to advancing the EU’s goals of decarbonization and energy security,  leading the overall Coordination (KIT), the Education & Training programme, the Strategic Research and Innovation Agenda identifying R&I priorities across EU and managing the Transnational Access provision to the research infrastructures integrated in the project.

• Part I. Industry and Power Generation.- 1. Industrial application of high-temperature heat and electricity storage for process efficiency and power-to-heat-to-power grid integration.- 2. Repurposing coal-fired power plants integrating the use of second-life batteries, flywheels, and high temperature molten salt storage.- 3. Optimizing Renewable Power Systems: Hybrid Gravity-Battery Energy Storage System for Wind/PV Integration and Load Balancing.- Part II. Power Grid and Renewable Transition.- 4. Integration of run-of-river/pumped hydro with an energy storage system based on batteries and supercapacitors for enabling ancillary services and extending the lifetime of gen-erating equipment.- 5. Power-Intensive Energy Storage Systems.- 6. Hybrid energy storage systems coupled with renewable pow-er plants for power smoothing applications.- Part III. Resilient Off-grid Solutions.- 7. Building Resilient Off-Grid Energy Systems: Hybrid Storage   Solutions for Cold Climates.- 8. Southern climate. Hybrid energy storage for cooling and sup-plying electrical load.- 9. Benchmarking of Hybrid Thermal and Electri-cal Storage for Renewable Energy Communities.- Part IV. Future Mobility and Transport Solutions.- 10. Hybrid energy storage system for BEV and FCEV charging stations – Use case for Aluminum as energy carrier.- 11. Waterborne Transport. Hybrid Power Supply for Electrifica-tion of Port Infrastructures, Shore-to-Ship Power, and Ship Power and Propulsion.- 12. Resilient Hybrid energy storage systems in rail transport.- 13. Battery systems for air transport climate neutrality.- 14. On-board integration of hybrid energy storage systems in heavy duty vehicles: the electric buses use case.- Part V. Sustainable and Smart Buildings.- 15. Buildings (<50 kWh/day). Integrated batteries with phase change materials (PCM) for peak shaving and load manage-ment: the HYBUILD example.- 16. Hybrid thermal and electrical energy storage in office buildings.- 17. Behind-The-Meter. Combination of Li-ion batteries and Or-ganic Flow Redox batteries for BTM applications.

The Editors, coming from Academia, Karlsruhe Institute of Technology (DE) and University of Perugia (IT) and Research Organizations, SINTEF (NO) and Austrian Institute of Technology (AT), are all active in the field of energy storage and conversion. They are members, with leading roles, of the European Energy Research Alliance (EERA) Joint Programme Energy Storage, establishing a long-term coordinating research effort in the field of energy storage at European level. Finally, the Editors are leading partners in the European Union-funded project Storage Research Infrastructure Eco-System (StoRIES, #101036910) dealing with hybrid energy storage as a way to advancing the EU’s goals of decarbonization and energy security,  leading the overall Coordination (KIT), the Education & Training programme, the Strategic Research and Innovation Agenda identifying R&I priorities across EU and managing the Transnational Access provision to the research infrastructures integrated in the project.

• Part I. Industry and Power Generation.- 1. Industrial application of high-temperature heat and electricity storage for process efficiency and power-to-heat-to-power grid integration.- 2. Repurposing coal-fired power plants integrating the use of second-life batteries, flywheels, and high temperature molten salt storage.- 3. Optimizing Renewable Power Systems: Hybrid Gravity-Battery Energy Storage System for Wind/PV Integration and Load Balancing.- Part II. Power Grid and Renewable Transition.- 4. Integration of run-of-river/pumped hydro with an energy storage system based on batteries and supercapacitors for enabling ancillary services and extending the lifetime of gen-erating equipment.- 5. Power-Intensive Energy Storage Systems.- 6. Hybrid energy storage systems coupled with renewable pow-er plants for power smoothing applications.- Part III. Resilient Off-grid Solutions.- 7. Building Resilient Off-Grid Energy Systems: Hybrid Storage   Solutions for Cold Climates.- 8. Southern climate. Hybrid energy storage for cooling and sup-plying electrical load.- 9. Benchmarking of Hybrid Thermal and Electri-cal Storage for Renewable Energy Communities.- Part IV. Future Mobility and Transport Solutions.- 10. Hybrid energy storage system for BEV and FCEV charging stations – Use case for Aluminum as energy carrier.- 11. Waterborne Transport. Hybrid Power Supply for Electrifica-tion of Port Infrastructures, Shore-to-Ship Power, and Ship Power and Propulsion.- 12. Resilient Hybrid energy storage systems in rail transport.- 13. Battery systems for air transport climate neutrality.- 14. On-board integration of hybrid energy storage systems in heavy duty vehicles: the electric buses use case.- Part V. Sustainable and Smart Buildings.- 15. Buildings (<50 kWh/day). Integrated batteries with phase change materials (PCM) for peak shaving and load manage-ment: the HYBUILD example.- 16. Hybrid thermal and electrical energy storage in office buildings.- 17. Behind-The-Meter. Combination of Li-ion batteries and Or-ganic Flow Redox batteries for BTM applications.

The Editors, coming from Academia, Karlsruhe Institute of Technology (DE) and University of Perugia (IT) and Research Organizations, SINTEF (NO) and Austrian Institute of Technology (AT), are all active in the field of energy storage and conversion. They are members, with leading roles, of the European Energy Research Alliance (EERA) Joint Programme Energy Storage, establishing a long-term coordinating research effort in the field of energy storage at European level. Finally, the Editors are leading partners in the European Union-funded project Storage Research Infrastructure Eco-System (StoRIES, #101036910) dealing with hybrid energy storage as a way to advancing the EU’s goals of decarbonization and energy security,  leading the overall Coordination (KIT), the Education & Training programme, the Strategic Research and Innovation Agenda identifying R&I priorities across EU and managing the Transnational Access provision to the research infrastructures integrated in the project.

• Part I. Industry and Power Generation.- 1. Industrial application of high-temperature heat and electricity storage for process efficiency and power-to-heat-to-power grid integration.- 2. Repurposing coal-fired power plants integrating the use of second-life batteries, flywheels, and high temperature molten salt storage.- 3. Optimizing Renewable Power Systems: Hybrid Gravity-Battery Energy Storage System for Wind/PV Integration and Load Balancing.- Part II. Power Grid and Renewable Transition.- 4. Integration of run-of-river/pumped hydro with an energy storage system based on batteries and supercapacitors for enabling ancillary services and extending the lifetime of gen-erating equipment.- 5. Power-Intensive Energy Storage Systems.- 6. Hybrid energy storage systems coupled with renewable pow-er plants for power smoothing applications.- Part III. Resilient Off-grid Solutions.- 7. Building Resilient Off-Grid Energy Systems: Hybrid Storage   Solutions for Cold Climates.- 8. Southern climate. Hybrid energy storage for cooling and sup-plying electrical load.- 9. Benchmarking of Hybrid Thermal and Electri-cal Storage for Renewable Energy Communities.- Part IV. Future Mobility and Transport Solutions.- 10. Hybrid energy storage system for BEV and FCEV charging stations – Use case for Aluminum as energy carrier.- 11. Waterborne Transport. Hybrid Power Supply for Electrifica-tion of Port Infrastructures, Shore-to-Ship Power, and Ship Power and Propulsion.- 12. Resilient Hybrid energy storage systems in rail transport.- 13. Battery systems for air transport climate neutrality.- 14. On-board integration of hybrid energy storage systems in heavy duty vehicles: the electric buses use case.- Part V. Sustainable and Smart Buildings.- 15. Buildings (<50 kWh/day). Integrated batteries with phase change materials (PCM) for peak shaving and load manage-ment: the HYBUILD example.- 16. Hybrid thermal and electrical energy storage in office buildings.- 17. Behind-The-Meter. Combination of Li-ion batteries and Or-ganic Flow Redox batteries for BTM applications.