Grid-tie vs Off-grid

Grid-tie vs Off-grid 2016-05-19T17:02:00+00:00

Grid-tie (on-grid) means that you can buy electricity from the grid when your renewable energy is in low production and when you are in excess production the renewable energy can be sold to the national grid.

Advantage; lower installation and maintenance cost, with financial return – Disadvantage; no power in the event of a power-cut.

Off Grid is a system that is total independent of the power grid and uses batteries to store the excess energy produced during the day then at night power is supplied by the batteries. Being off-grid requires a conservative approach to power usage and requires more maintenance than an on grid system.

Assess your power usage requirements by completing our appliance usage chart.

Advantage; no power bills and no power interruptions – Disadvantage; higher installation and maintenance cost.

Hybrid is a system that combines “on” and “off” Grid systems. Surplus energy produced in the day can be exported to the grid for a financial return and/or stored in the batteries. At night your power usage is a blend of battery and grid power.

Advantage; no power interruptions with financial return – Disadvantage; higher installation and maintenance cost.

Fail Safe means you are grid tied and using your renewable energy to keep an emergency supply of batteries full, so that when there is a grid power failure you can call on the full capacity of the battery storage.