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Energy store will be essential in the future power system due to the inherent fluctuations of the renewable resources. The use of liquid fuels, such as methanol or ammonia, allows for seasonal storage and, as energy carriers, can be used for different energy applications. In this work, a systematic evaluation of different alternatives to produce power from methanol and ammonia has been performed. Particularly, for each of them, the thermochemical (combustion) and electrochemical (fuel cells) routes are evaluated. The operating conditions of each of the alternatives are optimized yielding energy efficiencies between about 15-40 %. From an economic point of view, the cost of electricity for the proposed power facilities is around 0.8 €/kWh for the fuel cell based production and 0.25 €/kWh for the combustion one, with lower prices for ammonia based alternatives. The fuel cells are more suitable for small scale …