Natural gas vs Nuclear

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As an alternative to nuclear power plants from which 75 686 GWh of additional electricity should be obtained during 2030, gas-fired power stations with a total capacity of 9 600 MW, also at an assumed 90% capacity factor, could be considered.
In favour of a gas-fired power station is a construction time of 20 to 30 months in contrast to 60 to 80 months required for the building of a nuclear power plant.
In addition, global engineering and project execution capability for gas-fired power stations are very accessible, and high operational flexibility is a typical advantage of an open-cycle gas turbine (OCGT) power plant as it can go from complete standstill to maximum output in just a few minutes.
Although the specific carbon footprint of a gas-fired power station is much larger than a nuclear power plant, it only amounts to approximately 50% of the carbon footprint of a coal-fired power station.
The annual generation of 75 686 GWh in gas-fired power stations will thus be associated with the emission of 34 million tonnes CO² per year.
The generation of 75 686 GWh electricity per year from 3 gas-fired power stations, each with a plant lifetime of 30 years, will require a total of 16.2 tcf natural gas that could be sourced from Mozambique's current proved reserve of 100 tcf.
Assumed in this estimated demand for 16.2 tcf of natural gas, was (i) a lower heating value (LHV) of 46 MJ per kg natural gas, and (ii) 1.4 kWh electricity can be generated out of 10 cf of natural gas.

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