A　dynamic　power　allocation　scheme　is　proposed　to　maximise　the　energy　efficiency　(EE)　for　multi-antenna　transmissions　when　both　the　imperfect　channel　estimation　and　feedback　are　considered.　The　lower　bounded　ergodic　EE　is　given　by　the　temporal　correlation　analysis　from　the　Kalman　estimation　and　the　differential　codebook-based　feedback　of　the　Gauss-Markov　channel,　based　on　which　both　the　powers　of　data　and　training　are　adaptively　optimised.　Simulations　show　that　the　proposed　dynamic　power　allocation　scheme　outperforms　the　traditional　power　allocation　schemes.