Environmental Loadings

The document provides technical instructions for associating environmental loadings with energy devices and fuels in LEAP. It details the use of the Technology and Environmental Database (TED) for default emission factors, the ability to manually enter or override factors using mathematical formulae, and the handling of units and dynamic emission factors for future scenarios.

• Environmental loadings in LEAP are calculated by multiplying specified effect factors—such as pollutant emissions per unit of energy consumed, produced, or vehicle distance—by the total energy consumed or total mileage in a given year and scenario.
• Users can source emission factors from the Technology and Environmental Database (TED), which includes IPCC default factors for climate change mitigation, though these are direct emission factors rather than lifecycle factors.
• LEAP supports the manual entry of emission factors or the overriding of TED defaults using simple numbers or mathematical formulae, often linking emissions like SO2 and CO2 to the sulfur or carbon content of the fuel.
• For future scenarios, LEAP allows for dynamic emission factors; in Stock and Transport Analyses, these factors are treated as values for new technologies, and users can optionally specify lifecycle profiles to model how emissions degrade as technology ages.

APA

Stockholm Environment Institute (n.d.). Environmental Loadings. https://cdn.leap.sei.org/Help24/Demand/Environmental_Analysis.htm

Chicago

Stockholm Environment Institute. Environmental Loadings. n.d. https://cdn.leap.sei.org/Help24/Demand/Environmental_Analysis.htm.

Wikipedia

{{cite report |author=Stockholm Environment Institute |title=Environmental Loadings |url=https://cdn.leap.sei.org/Help24/Demand/Environmental_Analysis.htm |access-date=23 October 2026 |via=Climate Insights Directory}}

BibTeX

@techreport{stockholmenvironmentinstitutendenvironmental, author = {{Stockholm Environment Institute}}, title = {{Environmental Loadings}}, institution = {Stockholm Environment Institute}, url = {https://cdn.leap.sei.org/Help24/Demand/Environmental_Analysis.htm}, urldate = {2026-10-23}, note = {Indexed by Climate Insights Directory} }