MESSAGE Model (Modular Energy System Simulation Tool)

The MESSAGE Model (Modular Energy System Simulation Tool) is a computer-based framework used to analyze and plan energy systems. It helps researchers and policymakers evaluate how different energy sources—like renewable, nuclear, or fossil fuels—can be combined efficiently over time. The model considers costs, technology options, and policies to identify the most sustainable and economical energy pathways. Essentially, it acts as a virtual laboratory, simulating various scenarios to support strategic decisions for transitioning to cleaner and reliable energy systems worldwide.