Optimization of landfill Gas Use in Municipal Solid Waste Landfills in Latvia

A mathematical model was developed and applied to estimate an optimal installed capacity of a power plant that uses landfill gas as a fuel. Economic, technological and climate parameters are considered in the model. For benchmarking purposes the feed-in tariffs of power production from renewable energy sources, as well as price of CO2 emission allowances are used. A landfill in Latvia is taken as a case for modelling. The results show that it is possible to find the optimal capacity for various grades of landfill gas quality.