LEAP News
New version of LEAP (2024.4.0.11) with much faster calculations 3 Likes
By Charlie Heaps on 8/15/2025This new version fixes a problem causing a slow down in calculations, and also has additional code refactoring, resulting in significantly faster calculations. For some large non-optimization-based models, calculation times are reduced to a third or less of their previous duration (vs. 2024.4.0.2). Other improvements include more flexibility in how data is labeled in charts and tables, and improved diagnostics reports that let you filter diagnostic messages by scenario, region, and year.
As a reminder, LEAP is available at no cost to governments, NGOs, and academics in Low and Middle Income Countries and in most Small Island Developing States, and to accredited students worldwide.
LEAP-GPT: A new AI assistant for LEAP 20 Likes
By Charlie Heaps on 6/12/2025
LEAP user Matthew Davis from the University of Alberta has developed a new AI-based energy modeling assistant for Chat-GPT called LEAP-GPT that is designed to support scripting and automation of LEAP models.
The assistant:
* Provides general purpose help with using LEAP.
* Guides users through using the LEAP API, including those with no prior scripting experience.
* Generates code for automating LEAP tasks, including providing instructions for how to set up from scratch.
* Follows best practices for LEAP API branch access, filters, data inputs, results extraction, and model calculation.
* Helps navigate and apply API functions with complete argument structures.
* Supports error handling and scenario/region management through scripting.
To use the assistant:
* Go to https://chatgpt.com
The assistant:
* Provides general purpose help with using LEAP.
* Guides users through using the LEAP API, including those with no prior scripting experience.
* Generates code for automating LEAP tasks, including providing instructions for how to set up from scratch.
* Follows best practices for LEAP API branch access, filters, data inputs, results extraction, and model calculation.
* Helps navigate and apply API functions with complete argument structures.
* Supports error handling and scenario/region management through scripting.
To use the assistant:
* Go to https://chatgpt.com
* Log in or create an OpenAI account.
* In the GPTs tab (Explore GPTs), search for “LEAP Energy Modeling Assistant”
* Start a conversation and describe your modeling task.
Some example common use cases include:
* General help with using LEAP.
* Extracting results data.
* Building branch structures and inputting data.
* Sensitivity analysis.
* Running batches of scenarios and various model workflows requiring iteration.
* Model validation and verification.
While the assistant is still being improved, it is already functional and can support real-world workflows.
Give it a try. Matt welcomes your feedback!
* In the GPTs tab (Explore GPTs), search for “LEAP Energy Modeling Assistant”
* Start a conversation and describe your modeling task.
Some example common use cases include:
* General help with using LEAP.
* Extracting results data.
* Building branch structures and inputting data.
* Sensitivity analysis.
* Running batches of scenarios and various model workflows requiring iteration.
* Model validation and verification.
While the assistant is still being improved, it is already functional and can support real-world workflows.
Give it a try. Matt welcomes your feedback!
Explore How LEAP is Being Used 8 Likes
By Charlie Heaps on 5/16/2025Are you interested in how organizations have been applying LEAP for energy, climate mitigation, and air pollution abatement planning? We've got you covered!
We've just updated the Applications page with a huge new batch of information about major LEAP applications that have been conducted around the world. We've added more than 30 major new studies and presented them all in an easy-to-sort-and-search database that now describes 121 studies and reports in total.
The page includes information on how studies have contributed to many different topics including national energy strategies, Nationally Determined Contributions on climate change (NDCs), Long-Term Low Emission Development Strategies (LT-LEDS), clean air plans, and SDG planning. The studies have been conducted by many different organizations and at a variety of scales including cities, provinces, countries, multi-country regions, and even globally. Many of the studies go beyond modeling and planning to examine the implementation of plans and strategies. Each application is briefly summarized and most include links to executive summaries, full reports, and slide decks. Some even include explanatory videos and links to the actual LEAP models developed for the studies. You can download these and view them in LEAP.
We're planning to add more soon, but in the meantime if you'd like one of your reports to be included, please just contact us (leap@sei.org).
We've also updated the workshops page. It now list more than 150 past workshops, which can be easily searched by date and location, or via an interactive map. The list is just a partial sample of all the great capacity building work going on around the world by SEI and many other organizations. Contact us if you want to add an entry.
