This is the 6440th most frequent Russian word.
электростанции
Power stations.
Here, 'электростанции' again in its plural form is used to indicate facilities collectively contributing to urban energy provisioning.
Электростанции играют важную роль в энергоснабжении городов.
Power stations play an important role in the energy supply of cities.
The word 'электростанции' (power stations) is used in its plural form to denote multiple entities within the context of a map showing locations of facilities.
На этой карте отмечены все электростанции страны.
On this map, all the power stations of the country are marked.
The singular form 'электростанция' (power station) describes a single facility recently built near a geographical feature (the river).