Acorn Energy, Inc., together with its subsidiaries, develops and markets wireless remote monitoring and control systems for various markets in the United States and internationally. It operates in two segments, Power Generation (PG) Monitoring and Cathodic Protection (CP) Monitoring. The PG segment provides wireless remote monitoring and control systems, and services for critical assets, which include stand-by power generators, pumps, pumpjacks, light towers, turbines, compressors, fire pumps, and other industrial equipment; and Internet of Things applications. The CP segment offers remote monitoring and control products for cathodic protection systems utilized in gas pipelines for gas utilities market and pipeline operators. The company was incorporated in 1986 and is based in Wilmington, Delaware.