While most information transfer relies upon telephone lines, broadband wireless, cable, Ethernet and so forth, ST & T uses an even newer technology: power line carriers (PLC). This system uses electric cables to do double duty as both a power supply and information conveyer.
有趣的是，一般資訊傳輸，往往倚賴電話線、無線寬頻、cable、乙太網路等，而茂發電通投入的，卻是更新型的電力線網路通訊技術（PLC），也就是利用現有的電線作為能源與資訊的雙重傳輸管道，不必再加裝任何額外線路。