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Grid connect solar systems supply solar electricity through an inverter directly to the household and to the electricity grid if the system is providing more energy than the household needs. When power is supplied to the grid, the home owner usually receives a credit for that electricity; this is called a feed in tariff.
It definitely does. For example, a system with solar panels facing in a southerly direction will generate far less than one with a northerly aspect. However, east/west installations can be a good option depending on the installation scenario.
A feed in tariff is whereby a grid connected solar system owner receives a credit for the electricity their system generates by a utility or government agency. There are two different types of tariffs, gross and net. A gross feed in tariff pays a premium on all electricity produced whereas a net feed in tariff only pays on surplus energy created by the system. In Australia, net feed in tariffs are predominant.
Feed in tariffs are not paid out to customers, they are off set against your energy bills and therefore are deducted from fee charged for your electricity use.
Several aspects will need to be assessed to determine if your home is a good site for a solar system, such as orientation, space available, shadows on the space available and your current electricity usage. The best site will be one with adequate north-facing roof that has no shade.
Yes you can add to your system. Additional solar panels can be added at any time to increase generating capability but you may have to upgrade to a larger inverter.
In a grid connect system, as you are still tied to the mains power supply, any deficit will come from the mains grid.
In order to install a grid connected solar power system at your premises; you will need to have a compatible switchboard and meter.
A meter exchange may be required after the installation of your new solar system. The energy produced by your solar system interacts with the main power grid and the loads in your house. Without an appropriate mains meter, any energy you sell to the power grid can be inaccurately measured, or even completely disregarded, greatly reducing the system’s effectiveness in reducing your energy bill. A ‘bi-directional’ meter is installed in place of the existing one-way meter, allowing the reading of energy in both directions.
The grid connect inverter will automatically shut itself off within a few milliseconds of a blackout, to prevent feeding power back into the grid; which can pose a threat to workers rectifying a blackout.
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