International Sustainable Energy Conference | 14–16 April 2026 | Graz, Austria
We are pleased to promote the 4th International Sustainable Energy Conference (ISEC 2026) — a key platform for innovation, policy and collaboration in the fields of renewable energy, circular economy, and energy efficiency. Researchers, policymakers, industry leaders, and innovators are invited to submit abstracts and contribute to the global dialogue on how we can ensure energy sovereignty within the timeframes dictated by climate change and political frameworks.
Abstract submission deadline: 31 August 2025
ISEC 2026 for Just Energy Transitions
ISEC 2026 places special emphasis on inclusive energy transitions and the development of context-sensitive solutions for the Global South. With partners such as UNIDO and the IEA, this event provides an ideal space for GN-SEC stakeholders to showcase innovations, foster partnerships, and shape global energy and climate strategies.
Research Topics of Interest
Technologies & Systems
- Circular Economy in Energy Systems
- Renewable Heating & Cooling (Low to High Temp)
- Smart Infrastructure & Electrification
- Energy Storage and Sector Coupling
- Industrial & Urban Symbiosis
- Hydrogen and Green Gas Integration
- Biorefineries & Solar-to-X Solutions
- Flexibility in Thermal and Electric Grids
Policy, Finance & Implementation
- Just & Inclusive Energy Transition Frameworks
- Digitalization and AI in Energy Systems
- Business Models and Financing Instruments
- Life Cycle Assessments & Impact Evaluation
- Spatial Energy Planning and Policy Design
- Non-financial Reporting & ESG Integration
- Capacity Building, Gender & Equity Dimensions
Full list of topics and submission guidelines here.
Key Dates
- Abstract Submission Deadline: 31 August 2025
- Full Paper Invitations: 18 November 2025
- Publication: Papers published with TIB Open Publishing, including DOI, open access and indexing
Programme Highlights
- 14 April 2026: Side Events & Welcome Reception
- 15–16 April 2026: Main Conference, Workshops, Exhibitions, Poster Sessions, Conference Dinner
We encourage GN-SEC regional experts, partners, and affiliated institutions to participate and submit their contributions.
Add ISEC 2026 to your calendar and join us in Graz!