a system of monitoring and / or maintaining remotely located autonomously powered lights , security systems , parking meters , and the like is operable to receive data signals from a number of the devices , and provide a comparison with other similar devices in the same geographic region to detect a default condition of a particular device , and / or assess whether the defect is environmental or particular to the specific device itself . the system includes memory for storing operating parameters and data , and outputs modified control commands to the devices in response to sensed performance , past performance and / or self - learning algorithms . the system operates to provide for the monitoring and / or control of individual device operating parameters on an individual or regional basis , over preset periods .