By Michele Paduano, Midlands health correspondent, BBC News
Unlike the Excel in London, the Birmingham's Nightingale hospital was always devised as a step down facility, so it would accept patients who had recovered sufficiently from coronavirus or who were not suitable for ventilation.
Fortunately, although the number of coronavirus cases have been significant, social isolating is working, and the NEC has not been required for this purpose.
Trusts who have also had up to 20% of their staff off self-isolating or sick have not wanted to second employees to the new facility because their rotas are already stressed.
The Birmingham Nightingale is expected to be in use for 12-18 months and may be called upon if there were a second greater surge.
More than 400 civilian contractors, along with military personnel and about 500 clinical staff, were involved in building the temporary field hospital, which took eight days to build.
Dr Rosser said the trust was "hugely proud of getting it up and running but we're also paradoxically proud of the fact that we didn't need to use it".