Introducing system flexibility to a multinational transmission expansion planning model. - Martin Kristiansen; Magnus Korpas; Hossein Farahmand; Ingeborg Grabaak; Philipp Härtel (PSCC, 2016)

∇-Prox: Differentiable Proximal Algorithm Modeling for Large-Scale Optimization. - Zeqiang Lai; Kaixuan Wei; Ying Fu 001; Philipp Härtel; Felix Heide (ACM Trans. Graph., 2023)

Predictions and Decision Making for Resilient Intelligent Sustainable Energy Systems. - Martin Braun 002; Christian Gruhl; Christian A. Hans; Philipp Härtel; Christoph Scholz 001; Bernhard Sick; Malte Siefert; Florian Steinke; Olaf Stursberg; Sebastian Wende-von Berg (ISGT EUROPE, 2024)

Energy Security and Resilience: Reviewing Concepts and Advancing Planning Perspectives for Transforming Integrated Energy Systems. - Richard Schmitz; Franziska Flachsbarth; Leonie Sara Plaga; Martin Braun 002; Philipp Härtel (CoRR, 2025)

Bilevel Optimization for Improved Flexibility Aggregation Models of Electric Vehicle Fleets. - Philipp Härtel; Michael von Bonin (CoRR, 2025)

Vulnerability-Based Optimal Grid Defense Strategies for Enhancing Cyber-Physical Energy System Resilience. - Eric Tönges; Philipp Härtel; Martin Braun 002 (CoRR, 2025)

A Computationally Efficient Method for Solving Mixed-Integer AC Optimal Power Flow Problems. - Johannes Heid; Nils Bornhorst; Eric Tönges; Philipp Härtel; Denis Mende; Martin Braun 002 (CoRR, 2025)