23 Degrees Renewables Ltd. was established in 2011 and has rapidly become recognised by clients for excellence in dealing with challenging problems encountered on submarine cable projects.

We are able to draw upon experience gained through more than 40 years of international offshore and deep sea operations on a range of submarine cable applications and marine projects, and bring with us a thorough appreciation of the interaction and relationships between the various components of a project at sea which is fundamental to achieving a successful result.
The Director of 23 Degrees Renewables Ltd. has worked in senior management positions both Offshore and Onshore and appreciates the correlation between offshore operations and commercial matters.
Grahame Tate
Managing Director

​A strong professional and highly driven individual who consistently delivers beyond expectations while inspiring and motivating others. With over 18 years practical operational offshore engineering, HVAC and HVDC submarine cable installation, project management, with design construction installation and commissioning of major offshore, civil and infrastructure projects.

Brad Tate

Operations Director


A highly qualified marine diesel engineer and Master Mariner with 20 years experience in offshore operations and specialised marine super yachts industry.