LEAP, the Long-range Energy Alternatives Planning System, is a widely-used software tool for energy policy analysis and climate change mitigation assessment.


LEAP is fast becoming the de facto standard for countries undertaking integrated resource planning, greenhouse gas (GHG) mitigation assessments, and Low Emission Development Strategies (LEDS) especially in the developing world. Developed by the Stockholm Environment Institute, LEAP and all of its associated training materials and documentation are distributed free of charge to academic, governmental and not-for-profit organizations based in the developing world.

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