Marine and offshore renewable energy sources in Wales offer a currently untapped solution to help decarbonise businesses comprising the South Wales Industrial Cluster, and beyond, with a high abundance of resource availability off the South Wales coast. Additionally, the diversity of sources represented by wave, wind and tide can help to create a more resilient renewable energy supply if developed in conjunction with each other.

Both tidal range and tidal stream offer a 100% predictable and reliable form of renewable energy; and with tidal cycles operating at different times at different points along the South Wales coast there lies an opportunity to maximise balanced power generation through geographically distributing installations.

This report provides a summary of the marine and offshore renewable energy potential within and adjacent to Welsh Waters, with a focus on those in the South and West to ensure economic feasibility is maximised through proximity and direct adjacency to the demand associated with the South Wales Industrial Cluster.