The Stockholm Environment Institute is an international not-for-profit research organization that has been engaged in environment and development issues at local, national, regional and global policy levels for more than 20 years.
Our goal is to bring about change for sustainable development by bridging science and policy. We do this by conducting integrated analysis that supports decision-makers.
SEI's work is interdisciplinary in nature, drawing upon engineering, economics, ecology, ethics, operations research, international relations and software design.
We work all around the world building capacity for integrated sustainability planning through training and collaboration on projects.
SEI's climate and energy modeling system
LEAP 2014: faster, more powerful, and built for interaction
The newest version of SEI's Long-range Energy Alternatives Planning system includes a scenario explorer, enhanced graphics, a simpler interface, and multiple performance improvements.
LEAP is a powerful, versatile software tool for integrated energy planning and climate change mitigation assessment developed by SEI’s U.S. Center, and distributed at no charge to academic, nonprofit and government organizations in the developing world and to students worldwide. In the last year alone, more than 2,000 people actively used the tool, and the LEAP online community has now grown to over 22,000 members in 191 countries.
LEAP can be used at a wide range of scales, from cities and states to national, regional and even global applications. It is fast becoming the de facto standard for countries undertaking integrated resource planning and GHG mitigation assessments, especially in the developing world, and for creating Low Emission Development Strategies (LEDS).
The newest version, LEAP 2014, released on June 6, makes it easier to share and discuss modelling results with non-technical audiences, with improved charts and results tables, and a new Scenario Explorer (see figure).
With the new Scenario Explorer, you can explore the implications of different policy choices, using slider bars that are connected to key parameters in the underlying LEAP data set. As you pull on these sliders, results are immediately recalculated and shown in overview charts. The tool can also be used to quickly switch on and off specific measures within an overall scenario, such as energy efficiency, fuel switching, renewables, or reducing process emissions, to decide which overall strategy is best in terms of overall costs, emissions reduction potential, energy security or how the measures contribute to key national development objectives. This, combined with dramatic speed improvements and a new Full Screen View, makes LEAP even more useful for use in interactive settings such as LEDS stakeholder workshops.
Other key new features include:
The new version is fully backwards compatible with previous versions. Older data sets will be automatically upgraded when opened in the new version. LEAP also creates backups of previous versions for safety.