1, the amount of communication data is different. The bandwidth of the power narrowband line carrier is 120KHz-270KHz, which can only transmit limited data such as electricity consumption for daily charges; while the bandwidth of the hplc line carrier can reach 2MHz-12MHz, which can realize the communication of big data.

2, the number of different communications. Narrowband power line carrier only requires one day communication can be; and hplc line carrier bandwidth, the requirements of the power grid to monitor real-time data, including but not limited to hourly power, faults real-time reporting and other information.