Let's examine how electric vehicles are charged and what NEC 625 requires for the charging stations, and at what the owners need to know to install and maintain these systems safely.

In 1996, a new Article 625, Electric Vehicle Charging System Equipment, was added to the NEC in anticipation of electrically charged vehicles.

This report identifies and analyzes four immediate challenges for Smart Grid implementation: smart consumers, Smart Grid cybersecurity, Smart Grid interoperability, and smart transmission.

So where do we start? First, we have to understand some of the basic principles of electricity, what it is and how we use it.