  We study the inflationary scenarios driven by a Wilson line field - the fifth
component of a 5D gauge field and corresponding modulus field, within S^1/Z_2
orbifold supergravity (SUGRA). We use our off shell superfield formulation and
give a detailed description of the issue of SUSY breaking by the F-component of
the radion superfield. By a suitably gauged U(1)R symmetry and including
couplings with compensator supermultiplets and a linear multiplet, we achieve a
self consistent radion mediated SUSY breaking of no scale type. The inflaton
1-loop effective potential has attractive features needed for successful
inflation. An interesting feature of both presented inflationary scenarios are
the red tilted spectra with ns~0.96. For gauge inflation we obtain a
significant tensor to scalar ratio r~0.1 of the density perturbations, while
for the modulus inflation r is strongly suppressed.
