This company is practicing energy awareness.
In general, energy awareness is about understanding;
- how much energy is used ( directly and indirectly),
- what is it used for,
-where the energy comes from,
- the effects of using it ( depletion of resources, environmental impact ),
- what can be done to reduce energy consumption.
All lights out after leaving a room is a great example of a single measure of energy saving ( no lights on = no energy wasted ). It is an easy change that can become a habit and it can also show the company workers that they have the power to make an immediate difference to their office's energy consumption.