After almost 15 years of study in different parts of the country and after 10 years in the geothermal zone of Cerro Prieto, Baja California, the first plant in this zone, with a capacity of 75,000 kw, was inaugurated in April 1973. Electricity is generated on a commercial scale using the natural steam from underground.

The possibilities for Mexico in this field are rather large, as there are 130 known zones where it is feasible

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to obtain geothermal energy. Only one of them has been developed, five more are being studied, and general inventory and sampling are being done throughout the country.

The probable potential in the geothermal zone of Cerro Prieto, Baja California, has been determined and a general estimate of the known geothermal zones and the total potential have been completed.

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