2020 PES GM 8/6 Panel Session: Numerical challenges in multi-energy simulations

Multi-physics co-simulation is an increasingly popular simulation technique used to explore multi-domain, complex, and/or large-scale power systems. Individual simulators (and their corresponding models) communicate boundary-condition values to other simulators, affecting their operation, and receive corresponding values from other simulators that affect its operation. The linking of these models introduces complexities around maintaining a consistent system state across models and computational efficiency due to data dependencies between models. Particularly as the scale of the systems increases, complexities around the instantiation, message-passing architectures, and data management become particularly challenging. This panel will convene experienced practitioners in numerical (co-)simulation to present recent applications and discuss techniques, experiences and best practices for managing the previous mentioned challenges.