eGauge is an affordable, flexible, secure, web-based electric energy and power meter that can measure up to 12 circuits on up to 3-phases (120V−480V, 50−60Hz). Use eGauge to measure and record total building electrical consumption, solar, wind and other renewable electricity generation, and consumption of individual circuits, such as appliances, geothermal pumps, motors, electric vehicle charging and backup heaters. The data can be viewed on any web-enabled device through the built-in web-server. The display is updated every second, giving immediate feedback on any load or generation changes. The device records the most recent 30 years of data in its built-in solid-state memory. The measurements can also be accessed through BACnet and/or can be pushed to a server via our XML API.