Stored Energy and Transit Energy

In Thermodynamics, energy is classified into two types viz. stored energy and transit energy

Stored Energy

Stored energy is the energy possessed by a system within its boundaries.  Examples are kinetic energy, potential energy, internal energy.  These types of energy are contained within the boundary of the system itself.

Transit Energy

Transit Energy is the energy which can cross the boundary of a system. Examples of Transit energy are electricity, heat, etc.