Construction of the plant is expected to start early next year and is due to be completed in mid 2015.
The wind farm will feature 35 turbines with a capacity of 2MW each. The company said that a turbine supplier is yet to be chosen, but it has previously used Vestas and Gamesa machines on Uruguayan developments.
Abengoa will be responsible for the development, engineering, construction and 20-year operation of the plant.
A leasing agreement, under which the Uruguayan state electricity company will make monthly payments, is estimated by Abengoa to generate revenues of around $500 million by the end of the lease.
This is the third licence to be awarded to the Spanish developer, which is currently working on two 50MW plants in country.
Uruguay has the most ambitious 2030 target in Latin America, intending to source 100% of its power from renewable sources by that date, and 30% through wind.