Marine renewable energies are being implemented as basic energy sources of the Spanish energy system for various reasons, the first because the planet Earth is made up of 70% water, which makes marine resources very important when programming the production, the second because they are clean energies that do not emit greenhouse gases, necessary to comply with the European Green Deal and the third because this type of energy provides us with energy independence from third countries. But, despite the social benefits mentioned above, we also have to take into account economic factors that can make the economic profitability of this type of equipment less viable. For this, the wind resource, platform costs, etc. are analyzed. Within these factors, this research focuses on seeing how the variation in the price of steel (the main material used in this equipment) caused by the increase in the cost of electricity causes the main economic parameters to vary for a park made up of W2Power hybrid platforms. of 300 MW located on the Atlantic coast of the Iberian Peninsula.