1. Landfill Gas Calculator & Other Engineering Tools in RETScreen

2. Objectives Review basics of the RETScreen landfill gas calculator Introduce other engineering tools available in the RETScreen Tools worksheet

3. Landfill Gas  Landfills produce methane as waste decomposes  This can be used as the fuel for cooling, heating or power projects LFG CHP for district heating system, Sweden Photo Credit: Urban Ziegler, NRCan Photo Credit: Gaz Metropolitan

4. Project Example: Grid Projects Landfill gas fuelled power plant using a lean-burn engine  Bergen, Norway  1.3 MW  US$ 0.03/kWh  37% efficiency Photo credit: CADDET Centre for Renewable Energy Power plant in Bergen, Norway 1.3 MW Lean-Burn Engine

6. Conclusions  RETScreen’s Engineering Tools are accessible from within the software on the Tools worksheet  Landfill Gas calculator is a companion tool which is automatically linked to the software when landfill gas is chosen as a fuel type  Other Engineering Tools provide a quick way to add detail or provide secondary information to your RETScreen project (e.g. Biogas)  You can customize and extend by building your own tools

8. Questions? www.RETScreen.net