Battersea Power Station

Battersea Power Station was located in the city of London.

In the main universe, by the time of the 22nd century Dalek invasion of Earth, to the surprise of Ian Chesterton and Barbara Wright, who came from the year 1963, it had been converted into a nuclear power planet and was visibly different than the power station that they knew. (DW: The Dalek Invasion of Earth)

Parallel Earth
In a parallel Earth, it no longer served its original purpose. Cybus Industries employed the station as a cyber-conversion center and base for the Cybermen created by John Lumic. The factory was destroyed when the Doctor used Rose Tyler's superphone to send a signal which destroyed all the Cybermen inside. (DW: The Age of Steel)