Solar panel system with as minimal reliance on the grid

[in06khattab]

I am not sure if this is the best place to ask, but I am trying to make a solar panel system which will charge batteries with excess energy and will be connected to the mains (i am going to try the lights circuit initially).

I also want a backup from the grid if the batteries run out and I am not producing electricity (like at night).

I am starting with a 300W panel http://www.naturalsparx.co.uk/produc...V-Module-Black.

I would need to connect this panel to a 3 phase MPPT charge controller, then batteries, then a True Sine Wave inverter to 230V mains to the circuit breaker.

Is there an inverter that will allow me to charge batteries when needed and power the mains when needed and take power from the grid when needed?

Is this a solar hybrid inverter?

EDIT:
Is this what I should be looking for as it does not have much information? http://www.powerinspired.com/maxic10...ut-p-1788.html

[inetdog]

I am not sure if this is the best place to ask, but I am trying to make a solar panel system which will charge batteries with excess energy and will be connected to the mains (i am going to try the lights circuit initially).

I also want a backup from the grid if the batteries run out and I am not producing electricity (like at night).

I am starting with a 300W panel http://www.naturalsparx.co.uk/produc...V-Module-Black.

I would need to connect this panel to a 3 phase MPPT charge controller, then batteries, then a True Sine Wave inverter to 230V mains to the circuit breaker.

Is there an inverter that will allow me to charge batteries when needed and power the mains when needed and take power from the grid when needed?

Is this a solar hybrid inverter?

EDIT:
Is this what I should be looking for as it does not have much information? http://www.powerinspired.com/maxic10...ut-p-1788.html

You are essentially describing a hybrid off-grid/grid tied system. Such a system can be AC or DC coupled, depending on whether you use a bi-directional inverter-charger such as Xantrex offers (DC coupled) or a grid tie inverter, and off-grid inverter, and a battery charger all connected to the mains power point for the system (AC coupled).

Either system will give you the ability to sell power to POCO and to take power from the batteries and from the panels when the utility power fails.
But to the extent that you actually use it to provide power to your local loads by charging and discharging the batteries, the resulting recurring battery replacement expense will cost you far more per kWh than just buying from POCO with no solar system at all, and will compare even worse economically to a pure grid tie system with no batteries at all.