 Our analytic platform reveals that various alternatives exist to meet Kosovo's electricity supply constraints at a lower cost than constructing a proposed 600 megawatts coal plant, including energy efficiency measures and combinations of renewable sources such as solar PV, wind, hydropower, and biomass. A shadow price on CO2 of €30 tonne minus 1 increases the cost of coal generation by at least €330 million, and financing a new coal plant is the most expensive pathway to meet future electricity demand. This article was offered by Noah Kytner, Hilda Timcoe, these are a semi, and others.