... heaters, refrigerator, etc;3.Office space: computers, printers, copiers, scanners, digital cameras, etc;4.Power tools: saws, drilling machines, punching machines ... , wind power, gas discharge lamps, etc; PV grid-connected inverter 1-100kw (single or three phase, AC110/120/220/ 230 ... is not to worry any power waste, because by connecting inverter to grid, it can save any surplus electricity. Features: ...