Stand-alone PV Power System (off-grid)
System includes:
1. PV Array: A number of PV panels connected in series and/or in parallel giving a DC output out of the incident irradiance. Orientation and tilt of these panels are important design parameters, as well as shading from surrounding obstructions.
2. PV controller: Control battery bank charge and discharge reasonable and safety.
3. Inverter: A power converter that "inverts" the DC power from the panels into AC power. The characteristics of the output signal should match the voltage, frequency and power quality limits in the supply network.
4. Battery bank: Can be a single battery or multiple batteries connected together to create essentially one large battery of the required voltage and amp-hour capacity. In some ways the battery configuration and capacity are the most important electrical power decision to make, and a wise choice can help guarantee a steady supply of electrical power as well as a system that is simple to operate and maintain.
5. Loads: Stands for the network connected appliances in the building that are fed from the inverter, or, alternatively, from the grid
Apparatus
Solar cells and modules:1000Wp;
Free maintenance lead-acid battery:600AH/24V;
Inverter:2000W;
Charge controller:30A;
Supply for rainy days: 3 days
Supply the electricity for these appliances below: |
| Name | Watt of Load | Quantity | Working hours per day | Consumption per day |
| Lamp | 11W | 6 | 4 | 264Wh |
| Computer | 140W | 1 | 5 | 700Wh |
| Printer | 30W | 1 | 1 | 30Wh |
| Washer | 300W | 1 | 0.5 | 150Wh |
| Microwave oven | 1200W | 1 | 0.1 | 120Wh |
| Color TV | 140W | 1 | 6 | 840Wh |
| Air condition | 800W | 1 | 3 | 2000Wh |
| Total | 2480W | | | 4104Wh |
Yueqing Zonhan Windpower Co., Ltd.Was founded in China with the purpose of supplying people with the knowledge and tools necessary to generate ecologically friendly electricity through the use of wind turbines.
Recognizing the needs of the small wind market, Zonhan has directed its creative expertise to developing wind generators for homeowners, farmers, manufacturers and business proprietors who are looking for a cost-effective and environmentally friendly energy source.
Zonhan develops and manufactures revolutionary small wind energy systems, offering the cost-efficient and easily customized wind power solutions for grid and off-grid applications worldwide.
Our cutting edge technology and in-house expertise allows us to offer the most reliable and cost-saving wind power turbines to fulfill consumer, business and industrial needs, at the highest performance available today.
