*3.5. Sensitivity Analysis*

In order to determine the variables that most affect the viability of the project, it is important for performing a sensitivity analysis with the objective of analyzing the behavior of the project in different situations. The analysis of these scenarios is performed by means of the computation of the *net present value* (*NPV*), the *internal rate of return* (*IRR*) and the *discounted payback period* (*DPBP*), which have an extended application in scientific literature [54]. In these sorts of renewable energy projects, the parameters that are, in principle, expected to influence the project profitability are the following: (i) Investment; (ii) AEP; (iii) Price of energy; (iv) Interest rate; (v) Percentage of loan requested, and (vi) Tax rate.
