The Smart Energy Profile 2.0 (SEP 2.0) is an application for connecting consumer owned smart energy devices to the Smart Grid. SEP 2.0 is designed to work over any technology that supports the Internet Protocol (IP). This standard is not necessarily limited to transmission of energy usage information and can support many other types of information (e.g., pricing information, demand response events, billing information, prepayment information) and commodities (e.g., natural gas, water). SEP 2.0 is also used for communication between an electric vehicle and a charging station.
After the SEP 2.0 standard was completed, it was adopted as IEEE 2030.5; and, for all intents and purposes they are considered the same.