Background: Currently there are several renewable resources in different stages of technological
maturation. Among different alternatives, wave energy has some initiatives at an advanced
stage of development and is one of the most promising alternatives. In the process of developing wave
energy conversion devices, as well as developing other alternatives, the limits that must be satisfied to
achieve feasibility would be a powerful tool for technology managers.
Method: This paper proposes a feasibility space as being the set of key parameter values for technical
and economic viability that must be satisfied by devices in development. This article also determines
the feasibility space that must be satisfied in the current moment by devices for converting wave energy
to the feasibility of a wave power plant in the southernmost coast of Brazil.
Results: The results indicate that, for the conditions considered in the simulations, wave power plants
will be feasible, for energy at USD$ 0.05 / kWh, USD$ 0.10 / kWh and USD$ 0.15 / kWh, if they can
be implemented with costs between USD$ 616.01 / kW and USD$ 2,865.37 / kW respectively for efficiencies
between 20% and 40%. These values are extremely low, comparable to values for already
mature alternatives such as hydropower and wind energy.
Conclusion: The definition of a viability space allows the establishment of an objective to be achieved
so that generating plants based on renewable resources not yet exploited can become viable. This paper
presented the feasibility space for the generation of energy from ocean waves on the southern
coast of Brazil.
Keywords: feasibility space, ocean wave energy, hybrid systems, southern Brazil, computational simulation, software Homer
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