- Auxillary Energy or System
- Energy required to operate mechanical components of an energy system, or a source of energy or energy supply system to back-up another.
Energy terms . 2014.
Energy terms . 2014.
SL X60 — Infobox Train background = name = X60 imagesize = 300px caption = X60 commuter train at Stockholm Central Station interior interiorcaption = InService =Manufacturer = Alstom Factory = Family = Built = 71 Refurbishment = Replaced =Formation = 6… … Wikipedia