Abstract
The oceans can provide us with several direct sources of renewable energy, such as wave energy, energy from currents and energy in thermal gradients among other energy resources. The uses of these resources have not yet reached technical and economic maturity, but they have experienced significant advances in recent years. In this process, tools for feasibility analysis of hybrid systems including specific power plants are important. This article is dedicated to the feasibility study of hybrid systems containing power plants based on the energy of ocean and tidal currents. The software currently available for feasibility studies do not present specific models already developed for the simulation of this kind of power plants. Thus, this technical note shows how Homer software (Legacy version) can be used to conduct this type of study in pre-feasibility level. This article also presents a case study in which Homer is applied, focused only on Homer adaptation but without exhausting the subject, showing a feasibility window that would include current power plants with certain cost and efficiency in an existing PV wind biodiesel hybrid system.
Highlights
The oceans can provide some very interesting sources of renewable energy, such as wave energy, ocean and tidal currents energy and energy in thermal gradients among others
This equation will be used to build the model for the description of ocean and tidal current power plants
This study was performed to assess the integration of current power plants in hybrid systems situated not far from the coast
Summary
The oceans can provide some very interesting sources of renewable energy, such as wave energy, ocean and tidal currents energy and energy in thermal gradients among others. The version Legacy is currently available free of charge and is sufficient for most applications related to hybrid systems with micro hydro power, wind energy and PV modules contributions, with batteries and other storage devices, including the adaptation discussed in this technical note. This technical note shows how Homer can be used to simulate ocean and tidal current power plants and describes a case study in southern Brazil in which the inclusion of a current power plant in a wind photovoltaic biodiesel hybrid system is simulated. The case study is not exhaustive and only shows some results
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