1.       The composition and function of off-grid PV system:

1)solar panels: solar power system in the central part, is also the most valuable part of solar system. Its role is to project the Sun's radiation into electricity, or to a battery store, or promote the work load.

2)solar mounting bracket: fixed solar panels. According to the different installation methods, installation and ground-mounted solar mounting bracket into the roof; roof installation is also divided into tiles installed with color steel tile installation due to different frame designs of the different installation methods, the customer at the time of purchase need to be confirmed in advance.

3) SPDlightning surge protection devices: lightning switch, disconnect protection when lightning charge controllers and other electrical equipment.

4)solar charge controller: solar controller role is to control the working state of the whole system, and played a battery charge, over discharge protection role. In difference places, qualified controller should have temperature compensation function. Other additional features such as control switches are light control switch, controller should be optional.

5)battery: light emitted by solar panels power stored and released again when needed.

6)inverter: output DC solar direct. To be able to220VAC,electrical power needs to be emitted by solar power systems convert DC power to AC power.

7)cable (users to install themselves according to their actual configuration).

2. off-grid PV system applications;

1)household solar power supply: for no power as plateaus, Islands, remote pastoral areas, border posts and other military and civilian power consumption, such as lighting, televisions, tape recorders, etc;

2)family luminaire: Garden lights, street lights, lanterns, camping, hiking fishing lamps, lights, black lights, lamps, energy saving lamps and other tapping.

3)traffic areas such as navigation, traffic/railroad signals, traffic warning/marker lamps, yuxiang road lamps, high altitude obstacle light, highway/railway wireless telephone booths, unattended power supply.

4)communication/communication areas: solar-powered unmanned microwave Repeater, optical cable maintenance stations, broadcasting/Communications/paging system; photovoltaic systems, small rural carrier telephone communication equipment, soldiersGPSpower supply.

5)petroleum, maritime, meteorology: cathodic protection of oil pipelines and reservoir gate solar power systems, oil rigs, marine life and emergency power supply test equipment, meteorological/hydrological observation equipment.

6)solar building solar power combined with building materials, makes the future large-scale construction to achieve electricity self-sufficiency is a major development direction in the future.

3.  Photovoltaic power generation system;

1)system and good durability, corrosion resistance to salt spray and;

2)can withstand maximum pressureof 2400Pa, pressure snow5400Pa;

3)excellent low light performance, cloudy days power;

4)year depreciation less than7‰,25years can still be80%more than performance;

5)viaWIFIsmart networking, real-time monitoring system for power generation (optional);

4 . System configuration;

1) 240Wsolar panels:2sets

2)PV charge controller:1set

3) 500Woff-grid inverter:1set

4)solar mounting bracket: roof-mounted/floor mounting1

5) battery (optional)

5. system connection diagram; 

6. the detailed parameter;

1) 240Wsolar panels

2) PV charge controller;

3)500Woff-grid inverters;

4) mounting system installation;

Pitched roof mounting bracket

Floor mounting

Installation case;