This section covers the AC preservation period, from 2000 through to the present day. The year-by-year sub-sections cover our own history in more detail, plus other AC heritage developments outside the Group. Summaries for all pages can be found below. The sub-sections are grouped for convenience.
| 2020 | 89001 overhaul completed 89001 moved to Toton for painting 89001 returns to Barrow Hill after repainting 89001 moved to Soho depot for live testing |
| 2021 | 89001 completes live testing then low-speed movement testing at Soho depot 89001 returns to Barrow Hill |
| 2022 | Design work and parts procurement carried out for 89001's main line equipment 89001 moves to Loughborough for main line equipment installation and other works |
| 2023 | 89001 main line equipment installation continues at Loughborough |
| 2024 | 89001 main line equipment installation continues at Loughborough 89001 system testing carried out at Loughborough, including live 25 kV testing 89001 hauled to Crewe for further testing |