Renewable Energy and Energy Systems Toward Net-Zero Emissions

Dear Colleagues,

Efforts to achieve net-zero emissions by the mid-21st century are shaping the global transition of energy systems. In this context, the decarbonization of energy infrastructure through the integration of renewable energy remains a fundamental objective.

This Special Issue, entitled "Renewable Energy and Energy Systems Toward Net-Zero Emissions," focuses on the technological and strategic developments necessary for this transition. A key area of interest is the synergy between renewable-dominant power systems and the decarbonization of end-use sectors via electrification. The adoption of heat pumps and electric vehicles (EVs), coupled with renewable electricity, serves as a significant option for achieving these goals. Furthermore, the role of hydrogen energy is increasingly recognized as a vital component for long-term storage and the decarbonization of hard-to-abate sectors.

Additionally, some regional initiatives are exploring the feasibility of reaching 100% renewable energy-based net-zero emissions by the 2030s. These cases provide valuable insights into the practical implementation of high-share renewable systems, including the utilization of hydrogen-based solutions to ensure system reliability.

The Special Issue aims to provide a comprehensive platform for discussing technological, strategic, and policy-oriented developments that contribute to the realization of net-zero emissions energy systems.

Topics of interest for publication include, but are not limited to, the following:

• Integration and management of renewable energy resources;
• Distributed energy systems based on renewable energy;
• Decarbonization strategies through electrification (heat pumps, EVs with V2H, and industrial applications);
• Hydrogen or novel energy carriers and their role in sustainable energy systems;
• Grid flexibility and advanced energy storage technologies;
• Energy system modeling for transition pathways toward net-zero;
• Regional analysis and case studies of 100% renewable energy systems;
• Utilization of local energy resources combined with a circular economy;
• Policy and socio-economic frameworks for a carbon-neutral future.

Prof. Dr. Hiromi Yamamoto
Prof. Dr. Atsushi Akisawa
Guest Editors

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