The Mutriku Breakwater Wave Plant is a wave power plant constructed by Ente Vasco de la Energía (EVE), the Basque energy agency, in the bay of Mutriku in the Bay of Biscay.

[3][4] The Mutriku plant was built by Ente Vasco de la Energía, using oscillating water column (OWC) technology from Voith Hydro.

OWC technology was chosen as it had been previously tested (for example, at the Islay LIMPET device) and could be easily integrated into the existing breakwater design.

The researchers behind this study proposed that capacity factor could be increased by improving control of turbine speeds.

[9][10] From 2016 onwards, various monitoring efforts were implemented in order to assess the environmental impact of underwater sound emissions produced by the power plant.

The project budget for the turbine replacement is expected to be 3.2 million Euros (vat excl.)