Frequently Asked Questions (FAQs)

The document serves as a technical support guide for the LEAP software, offering instructions on optimizing calculation speeds, troubleshooting electricity generation modules, and clarifying the software's capabilities regarding GHG inventories and life cycle analysis. It also explains specific data entry functions, such as the distinction between exogenous and endogenous capacity and the use of share versus saturation units in demand analysis.

• Users can improve LEAP calculation speeds by reducing the number of calculated scenarios, disabling optional analysis scopes (such as costs or environmental loadings), shortening the analysis time frame via the End Year setting, increasing the interval between result years, or limiting the number of calculated regions.
• LEAP is not designed for life cycle analysis; the document suggests alternative tools such as GEMIS and GREET for modeling well-to-wheel transport emissions.
• While LEAP is not recommended for creating static GHG inventories for UNFCCC National Communications—for which IPCC methods and spreadsheets are suggested—it is highly effective for energy-sector GHG Mitigation Assessments involving forward-looking scenarios.
• LEAP is primarily an energy sector tool and is not suited for detailed mitigation assessments in agriculture, forestry, or land-use change, though results from external models like EX-ACT, CENTURY, or AgLU can be imported into LEAP to create comprehensive emissions accounts.
• The software distinguishes between Exogenous Capacity, which is user-entered data for existing or planned capacity, and Endogenous Capacity, which LEAP calculates internally to maintain minimum planning reserve margins in simulation-based scenarios.
• In demand analysis, 'share' units are used when neighboring branches must sum to 100% (e.g., urban vs rural households), whereas 'saturation' units are used for market penetrations where the sum may exceed 100% because a user may own multiple device types.

APA

Stockholm Environment Institute (n.d.). Frequently Asked Questions (FAQs). https://cdn.leap.sei.org/Help24/TechSupport/Frequently_Asked_Questions.htm#speeduptips

Chicago

Stockholm Environment Institute. Frequently Asked Questions (FAQs). n.d. https://cdn.leap.sei.org/Help24/TechSupport/Frequently_Asked_Questions.htm#speeduptips.

Wikipedia

{{cite report |author=Stockholm Environment Institute |title=Frequently Asked Questions (FAQs) |url=https://cdn.leap.sei.org/Help24/TechSupport/Frequently_Asked_Questions.htm#speeduptips |access-date=23 October 2026 |via=Climate Insights Directory}}

BibTeX

@techreport{stockholmenvironmentinstitutendfrequently, author = {{Stockholm Environment Institute}}, title = {{Frequently Asked Questions (FAQs)}}, institution = {Stockholm Environment Institute}, url = {https://cdn.leap.sei.org/Help24/TechSupport/Frequently_Asked_Questions.htm#speeduptips}, urldate = {2026-10-23}, note = {Indexed by Climate Insights Directory} }