A 100% carbon neutral power system is realistically achievable for Chile by 2050, or even sooner, according to a Wartsila white paper. Chile has set some of the most ambitious decarbonization targets in the world. This analysis presents a realistic decarbonization path for Chile which reaches the country´s carbon reduction targets, serves the load without black-outs, and provides lowest cost for the rate payers. The study presents the stages, timeline, and important capacity mix-related decisions necessary for efficient decarbonization.