| °C | Celsius | Unit of measurement for temperature |
| °F | Fahrenheit | Unit of measurement for temperature, predominantly in the USA |
| A | amp | Unit of electrical current |
| AC | alternating current | Current that changes direction regularly |
| CEM | Central Energy Management | Central control of energy flows |
| COM | COM software | Software for serial interface communication |
| CPO | Charging Point Operator | Operators of charging stations for electric vehicles |
| CP | Control Pilot | Communication line between vehicle and charging point |
| DC | direct current | Current with constant direction |
| DHCP | Dynamic Host Configuration Protocol | Network protocol for automatic IP address assignment |
| DIP switch | Dual in-line package switch | Small switch on circuit boards for configuration |
| GDPR | General Data Protection Regulation | EU regulation on the protection of personal data |
| ELS | Earth fault sensor | Sensor for detecting earth fault currents |
| EMS | Energy Management System | System for controlling and optimizing energy consumption |
| EEBUS | Energy management interface | Standardized communication for energy management |
| EVSE | Electric vehicle supply equipment | Technical equipment for supplying electric vehicles |
| EVSE ID | EVSE identification number | Unique identifier for charging points |
| residual current device | Residual current circuit breaker | Protection device against fault currents |
| GHz | Gigahertz | Unit of frequency, one billion hertz |
| HEMS | Home Energy Management System | System for managing household energy consumption |
| HMI | Human Machine Interface | Interface between man and machine |
| Hz | hertz | Unit for frequency (oscillations per second) |
| ICCID | Integrated Circuit Card Identifier | Unique number of a SIM card |
| IMEI | International Mobile Equipment Identity | Unique device identifier for mobile phones |
| IMSI | International Mobile Subscriber Identity | Unique user identification in mobile communications |
| IP | Internet Protocol | Protocol for addressing and transmitting data on the Internet |
| kW | kilowatt | Unit of power (1000 watts) |
| LED | light-emitting diode | Electronic semiconductor component that emits light |
| LTE | Long-Term Evolution | Standard for mobile broadband internet |
| mA | milliamperes | Unit of measurement for small electrical currents |
| MCB | circuit breaker | Automatic protection against overcurrent |
| MID | Measuring Instruments Directive | Directive on the conformity of measuring instruments in the EU |
| N | neutral conductor | Conductor for returning the current in the power grid |
| NFC | Near Field Communication | Technology for short-range wireless data transmission |
| Nm | Newton meter | Unit for torque |
| OCPP | Open Charge Point Protocol | Standardized protocol for charging stations |
| OTA | Over The Air | Wireless software updates |
| PE | protective conductor | Conductor for discharging fault currents |
| PCB | circuit board | Carrier plate for electronic components |
| PIN | Personal identification number | Number for authentication e.g.E.g. with SIM cards |
| PLC | Power Line Communication | Data transmission via the power grid |
| PSK | Pre-shared key (encryption) | Security mechanism in wireless networks |
| PUK | Personal Unblocking Key | Key to unlock a SIM card |
| PV | Photovoltaics | Technology for converting solar energy into electricity |
| PWR | PWR software | Energy monitoring or control software |
| RCD | Residual current detection | Protective circuit for dangerous currents |
| RFID | Radio frequency identification | Identification via radio signal |
| SIM | Subscriber Identity Module | Chip card for identification in the mobile network |
| SKI | Subject Key Identifier | Identifier for cryptographic keys |
| SoC | State of Charge | Battery charge level |
| SSID | Service Set Identifier | Name of a wireless network |
| TCP | Transmission Control Protocol | Protocol for the secure exchange of data |
| TLS | Transport Layer Security | Encryption protocol for secure data transmission |
| UUID | Universally Unique Identifier | Unique identification number |
| V | volt | Unit for electrical voltage |
| V2G | Vehicle-to-Grid | Feeding energy back from the vehicle into the power grid |
| WEP | Wired Equivalent Privacy | Outdated encryption protocol for WLAN |
| Wi-Fi | Wireless Local Area Network | Wireless local area network |
| WPA | WLAN Protected Access | Security protocol for wireless networks |
