*3.1. Study of the Costs throughout the Service Life of the Project and Estimation of the Annual Sales*

The study of the fundamental variables of the economic model implies the definition of the LCC of the project [26,47] and the estimation of the annual sales. Please note that we obtained the estimated costs and estimated annual sales included in the economic feasibility procedure for tidal energy projects (TEPs) by carrying out an analysis of current scientific literature and reports created by companies that specialize in these types of technologies and shipyards.
