For remote applications in which there is no possibility of connecting to the Grid, the best option is off grid system, there are mainly three types of off grid systems:
Off-grid wind independent power supply system
System working principle: Small Wind turbine generates electricity, the electricity is charged into the battery group by the charging controller, and then through inverter, the system supply AC power for loads.
| Equipment | Technical specification | Quantity |
| Wind turbine | RW-5kW variable pitch, DC240V | 1 |
| Tower and accessories | 8m, monopole tower | 1 |
| Solar panel and bracket | 5kW, nanocrystal | 1 |
| Off-grid wind controller | 5kW wind, DC240V | 1 |
| Inverter | 5KVA/DC240V/AC220V | 1 |
| Battery and Bracket | 12V/200Ah | 20 |
This system is widely used where there is no power at remote area; In order to reduce energy consumption and environment pollution and save cost, it applies wind and solar power to meet the power use requirements. This system can make full use of the new energy and improve new power efficiency to reduce the diesel consumption and environment pollution and save energy
System configuration:
| Equipment | Technical specification | Quantity |
| Wind turbine | RW-5kW variable pitch, DC240V | 1 |
| Tower and accessories | 8m, monopole tower | 1 |
| Solar panel and bracket | 5kW, nanocrystal | 1 |
| Off-grid wind solar and
diesel hybrid controller |
5kW wind, 5kW solar, DC240V | 1 |
| Inverter | 10KVA/DC240V/AC220V | 1 |
| Battery and Bracket | 12V/200Ah | 40 |
| Diesel | 5kW | 1 |
System advantages
Modularized design; improve the system reliability through redundant design, which guarantees the system can still work when one of subsystems has malfunction.
Multiple energy complementation; control the rated power to switch diesel for power use when system energy insufficient and meanwhile cut off unnecessary load to enlarge the system power supply time.
Since the primary energy is dubious and limited, the efficiency of the system must be treasured; the system adopts IGBT power modules and PWM control mode to reduce the system energy consumption.
The system uses modular design to guarantee the system scalability; provide the switch to increase system power capacity to make sure the system upgrade
The whole system application adopts automatic way to control the system and reduce human control, not only to improve the working efficiency, but also increase the system safety and reliability
Application field
Home application, island, small village, small power station, micro grid system, rural domestic, small holdings, agricultural, commercial.
Wind solar and grid hybrid power supply system
Working principle：Wind turbine and solar panel generate electricity, the electricity is charged into the battery group by the charging controller, and then through inverter, the system supply AC power for loads.
When there is no electricity in batter group, inverter will switch to grid and continue to provide power for loads, meanwhile, inverter will charge into battery to keep battery in good condition.
| Equipment | Technical specification | Quantity |
| Wind turbine | RW-5kW variable pitch, DC240V | 1 |
| Tower and accessories | 8m, monopole tower | 1 |
| Solar panel and bracket | 5kW, nanocrystal | 1 |
| Off grid wind solar hybrid controller | 5kW wind, 5kW solar, DC240V | 1 |
| Off grid inverter with grid switch function | 10KVA/DC240V/AC220V | 1 |
| Battery and Bracket | 12V/200Ah | 40 |
System advantages:
Suitable for places with unstable electricity grid.
Application field:
Home application, island, small village, small power station, rural domestic, small holdings, agricultural, commercial.
