Power Line Communication (PLC) Market Size By Offering (Software [Energy Management, Data Acquisition and Management], Service [Maintenance & Repair, Professional Service], Hardware), By Frequency (Broadband, Narrowband), By Application (Networking, Smart Grid, Long-haul), By Industry Vertical (Commercial, Residential, Industrial [Automotive & Transportation, Energy & Power]), COVID-19 Impact Analysis, Regional Outlook, Growth Potential, Price Trends, Competitive Market Share & Forecast, 2022 – 2030