Off-grid - also known as a stand-alone power system (SAPS)

An off-grid system is not connected to the electricity grid and therefore requires battery storage. Off-grid solar systems must be designed appropriately so that they will generate enough power throughout the year and have enough battery capacity to meet the home’s requirements, even in the depths of winter when there is generally much less sunlight.

The high cost of batteries and off-grid inverters means off-grid systems are much more expensive than on-grid systems and so are usually only needed in more remote areas that are far from the electricity grid. However battery costs are reducing rapidly, so there is now a growing market for off-grid solar battery systems even in cities and towns.

AC-coupled off-grid solar systems use a solar inverter together with a multi-mode battery inverter.

There are different types of off-grid systems which we will go into more detail later, but for now I will keep it simple. This description is for an AC coupled system, in a DC coupled system power is first sent to the battery bank, then sent to your appliances. To understand more about building and setting up an efficient off-grid home see our sister site go off-grid/hybrid

The battery bank. In an off-grid system there is no public electricity grid. Once solar power is used by the appliances in your property, any excess power will be sent to your battery bank. Once the battery is full it will stop receiving power from the solar system. When your solar system is not working (night time or cloudy days), your appliances will draw power from the batteries.

Backup Generator. For times of the year when the batteries are low on charge and the weather is very cloudy you will generally need a backup power source, such as a backup generator or gen-set. The size of the gen-set (measured in kVA) should to be adequate to supply your house and charge the batteries at the same time.

Solar Panels（SINGLE CRYSTAL SERIES，POLYCRYSTALLINE  SERIES， HALF-PIECE  SERIES, DOUBLE GLASS SERIES）

> 25 years Warranty 

> Highest conversion efficiency of 20.7% 

> Anti-reflective and anti-soiling surface power
   loss from dirt and dust

> Excellent mechanical load resistance

> PID Resistant,High salt and ammonia resistance

Charge Controller

> PWM Charge 

> Mppt Charge 

Off Grid Inverter(Low frequency /High frequency / Pure sine/ Modified sine )

> Input Voltage from 12V to 1000V

> Input Ampere 5A to 200AH 

> Output voltage 110/220V/380v/400V

> Single phase and Three phase  

Battery

> Agm Battery 

> Gel Battery 

> 2V,12V 

Mounting structure

Customized design with CAD drawing

Flat/ Pitched roof , soil/cement ground installation