As part of the RETScreen Clean Energy Project Analysis Software, an Emission Analysis worksheet is provided to help the user estimate the greenhouse gas emission reduction (mitigation) potential of the proposed project. This Emission reduction analysis worksheet contains five main sections: Settings, Base case electricity system (Baseline), Base case system GHG summary (Baseline), Proposed case system GHG summary (Project) and GHG emission reduction summary. The settings section is used to indicate whether or not the optional Emission Analysis worksheet is used and to select the preferred type of analysis. It also provides GHG global warming potential factors. The Base case electricity system and Base case system GHG summary sections provide a description of the emission profile of the baseline system. The Proposed case system GHG summary section provides a description of the emission profile of the proposed project. The GHG emission reduction summary section provides a summary of the estimated GHG emission reduction based on the data entered by the user in the preceding sections. Results are calculated as equivalent tonnes of CO₂ avoided per annum. This is an optional analysis - inputs entered in this worksheet will not affect results reported in other worksheets, except for the GHG related items that appear in the Financial Analysis and Risk Analysis worksheets.