FACT SHEET Software name: Long-range Energy Alternatives Planning System (LEAP)

The Long-range Energy Alternatives Planning System (LEAP), developed by the Stockholm Environment Institute, is an integrated modelling tool used in over 150 countries for energy policy analysis and greenhouse gas emission tracking. It supports both demand-side and supply-side methodologies, allowing users to create medium to long-term scenarios (typically 20 to 50 years) to evaluate the environmental and social impacts of various policy options. LEAP is distributed free of charge to academic, governmental, and non-profit organisations in the developing world and is used by more than 85 countries for reporting to the UNFCCC.

• LEAP is an integrated modelling tool used globally by government agencies, academics, NGOs, and energy utilities to track energy consumption, production, and resource extraction, as well as greenhouse gas (GHG) emission sources and sinks.
• The software is widely adopted for international climate reporting, with over 85 countries using it to meet their reporting commitments to the United Nations Framework Convention on Climate Change (UNFCCC).
• LEAP supports medium to long-term forecasting, typically covering 20 to 50 years, and allows for scenario analysis to compare energy requirements, social costs, and environmental impacts of different policies.
• The tool has been applied to influence national and regional policies in several locations: the Chinese Energy Research Institute used it to reduce carbon intensity; the Natural Resources Defense Council in the US used it for fuel economy standards; the state of Rhode Island used it for GHG mitigation monitoring; and the Philippines Department of Energy used it for National Energy Plans.

APA

Heaps, C. (2008). FACT SHEET Software name: Long-range Energy Alternatives Planning System (LEAP). Stockholm Environment Institute. https://www.sei.org/mediamanager/documents/Publications/Climate/leap.pdf

Chicago

Heaps, Charlie. FACT SHEET Software name: Long-range Energy Alternatives Planning System (LEAP). Stockholm Environment Institute, 2008. https://www.sei.org/mediamanager/documents/Publications/Climate/leap.pdf.

Wikipedia

{{cite report |last1=Heaps |first1=Charlie |title=FACT SHEET Software name: Long-range Energy Alternatives Planning System (LEAP) |publisher=Stockholm Environment Institute |date=2008 |url=https://www.sei.org/mediamanager/documents/Publications/Climate/leap.pdf |access-date=17 August 2026 |via=Climate Insights Directory}}

BibTeX

@techreport{heaps2008fact, author = {Heaps, Charlie}, title = {{FACT SHEET Software name: Long-range Energy Alternatives Planning System (LEAP)}}, institution = {Stockholm Environment Institute}, year = {2008}, url = {https://www.sei.org/mediamanager/documents/Publications/Climate/leap.pdf}, urldate = {2026-08-17}, note = {Indexed by Climate Insights Directory} }