The　quasi-neutral　limit　of　the　full　Navier-Stokes-Fourier-Poisson　system　in　the　torus　T-d　(d　＞=　1)　is　considered.　We　rigorously　prove　that　as　the　scaled　Debye　length　goes　to　zero,　the　global-in-time　weak　solutions　of　the　full　Navier-Stokes-Fourier-Poisson　system　converge　to　the　strong　solution　of　the　incompressible　Navier-Stokes　equations　as　long　as　the　latter　exists.　In　particular,　the　effect　of　large　temperature　variations　is　taken　into　account.　(c)　2015　Elsevier　Inc.　All　rights　reserved.