Ercon Energy is offering PV solutions with SMA and Voltronic Power Inverters. For Grid Tied system we are using SMA while in Off Grid we are using SMA as well as Voltronic Power.
Off Grid Inverter
Off grid photovoltaic (PV) systems are run on solar power and independent of the power grid. These systems require batteries to store electricity.
Grid Tie Inverter
A grid-tie inverter is a power inverter that converts direct current (DC) electricity into alternating current (AC) with an ability to synchronize to interface with a utility line.
Hybrid Inverters unlike conventional inverters store energy in batteries. These inverters store energy only when necessary, e.g. when there is more production than consumption. This system also allows choosing whether electricity from photovoltaic panels should be stored or consumed through an internal intelligent apparatus control unit.
This is possible through a technique that adds different energy sources (phase coupling: on-grid or grid-tie techniques) and the management of stored electricity in the battery (off grid technology). Hybrid inverters therefore operate on grid (grid-tie) as well as off-grid, hybrid (both on-grid and off-grid at the same time) and Backup (in case of a black out).