Methodology for the economic assessment of enhanced coal mine methane drainage (ECMM) as a fugitive emissions reduction strategy

► The paper presents a methodology for the assessment of the economic feasibility of enhanced mine drainage. ► The economic feasibility of a mine drainage project will largely depend on the CO2 penalty and the gas sales price. ► The economic feasibility decreases when either the permeability or the gas content is lowered. ► The decision regarding the injectant (N2 or flue gas) depends on both the availability and the cost of the injectant gas.