This optimisation add-on tool for the EnergyPLAN model enables a linear optimisation of renewable energy sources, electricity storage technologies, hydrogen storage, electrolyser usage, and smart charging of electric vehicles. Please cite the following article when using the model: Keiner D., Gulagi A., Satymov R., Etongo D., Lavidas G., Oyewo A.S., Khalili S., Breyer C. (2024). Future role of wave power in Seychelles: A strucutred sensitivity analysis empowered by a novel EnergyPLAN-based optimisation tool. Energy 303, 131905. https://doi.org/10.1016/j.energy.2024.131905 Please contact Dominik Keiner (dominik.keiner@lut.fi) or Christian Breyer (christian.breyer@lut.fi) for any inquiries regarding EP-ALISON-LUT. Updates are posted on X (@KeinerDominik; @ChristianOnRE) and Bluesky (@dominikkeiner.bsky.social; @christianonre.bsky.social). Many thanks to the European Union's Green Deal research and innovation programme under grant agreement No. 101036457 (EU-SCORES). Many thanks to the Jenny and Antti Wihuri Foundation for the valuable grant awarded to Dominik Keiner, which mainly enabled this research.