Kelly is joined in the back-row by Sam Warburton who has recovered from his hamstring strain. Another young Blue, Rhys Jones, remains at fullback after impressing in his two games last week and Jamie Jones, who also missed the win over Llandovery takes his place back on the wing.
The experienced Harry Trelawny replaces Lloyd Williams at scrum half.
Glamorgan Wanderers: Rhys Jones; Jamie Jones, Simon Rosser, James Thomas, Gareth Morris; Mark Roper; Harry Trelawny; Nathan Trevett, Huw Dowden, Scott Andrews, Keith Stewart, Alex Luff, Nick Kelly (Capt), Sam Warburton, Richard Thomas
Replacements: Richard Emms, Matthew Bolton, Ben Rose, Craig Morris, Gareth Knight, Lloyd Williams, James Loxton
Ebbw Vale (from): Andrew McLaughlan/Simon Hunt, James Lewis, Kristian Owen, Greg Roberts, Andrew Bevan, Bryan Shelbourne, Gareth Williams/Robert Lewis, Aaron Coundley/Marc Jones, Mathew Williams/Richard Wilkes, Anthony Lott, Matthew Griffin/Will Jones, Will Thomas, Nio Aiono/Rhodri Dicks, John McPhail/Rhys Jenkins, James Thomas/John Bowd