Does Wasted Energy Go?

The energy transfer to light energy is the useful transfer. The rest is 'wasted'. It is eventually transferred to the surroundings, making them warmer. This 'wasted' energy eventually becomes so spread out that it becomes very difficult to do anything useful with it.

What happens to the wasted energy in a house?

This wasted energy is often in the form of heat but could be in other forms like light and sound. One way or another, the energy that has been transferred to the surroundings makes them warmer. The wasted energy is increasingly spread out and is therefore a lot less useful.

Can energy be lost?

When energy is transformed from one form to another, or moved from one place to another, or from one system to another there is energy loss. This means that when energy is converted to a different form, some of the input energy is turned into a highly disordered form of energy, like heat.