Electrical Substation - a substation is a part of an electrical generation system, it will transform voltage from low to high, or high to low along with other important functions.
Junction Box - a box containing a junction of electric wires or cables.
Manufacturing - the production of merchandise for use or sale using labour and machines, tools, chemical and biological processing, or formulation. Wikipedia
Modernization - the process of adapting something to modern needs or habits.
Retrofit - adding a component to something that did not originally have it when manufactured.
Skid Mounted - a popular method of distributing and storing machinery. The equipment can then be easily and securely transported and used as a unit.
Switchgear - switching equipment used in the transmission of electricity.