3kw Solar Power System for Home
Installing a 3kw solar system at home not only reduces your monthly electricity bill but also provides you with free and non-polluting photovoltaic power for at least the next 30 years. The 3kw system is mainly adapted for small homes with 2 to 3 people. If the main use of electricity is during the day, then a 3kw grid tied system can be chosen. If the electricity consumption is higher at night this requires an off grid system with batteries.
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How much kWh power does a 3kw solar system produce?
A 3kW solar system can produce between 9kWh and 17kWh of electricity power per day, and between 250kWh and 500kWh per month, depending on the average annual solar radiation in the area where the PV is installed. Secondly, seasonal variations also affect the amount of electricity generated by a PV system. For example, there is a big difference between the amount of electricity generated by PV panels in summer and in winter. Finally, the efficiency of the PV panels and the conversion efficiency of the PV inverter are also important factors.
You can refer to the image below to know the peak sunshine hours per day in your area to calculate the amount of power a 3kw system can generate in your area.
For example, if the area is 5.6kwh per day, then the 3kw can generate 3×5.6=16.8kWh per day.
You can also contact us and we will help you calculate the PV power generation according to your city.
3kw Solar System Size
The size of a 3kw solar system is around 15.5m²/166.8ft², this is based on 6 of the more popular 550watt solar panel currently available, and the dimensions of the individual 550watt solar panel is 2279x1134mm.
3kw Solar System Price List
Prices for 3kw solar systems range from $800 to $2000 depending on whether it is a on grid, off grid or hybrid system. On grid system are the cheapest, off grid systems with batteries are a little more expensive, and hybrid systems combine them and are therefore a little more expensive, here is an approximate breakdown of the prices quoted.
| Model | Price |
|---|---|
| 3kw on grid solar system | Around 900USD |
| 3kw off grid solar system | Around 1600USD |
| 3kw hybrid solar system | Around 2000USD |
3kw Solar System Installation
(1), Install the PV panels on the roof or on the ground. (2), Connect six 550watt PV modules in series to the PV inverter. (3), Connect the PV inverter to the batteries via DC cable and set up the communication. (4), Connect the AC output of the PV inverter to the household load and utility input. It is important to note that in order to ensure safety, PV installations need to be carried out by a professional installation company or with the help of an electrician.
You can also contact us for a free detailed PV installation manual.
3kw Solar System Load Capacity
A 3kw solar system can load resistive household appliances up to 3kw in total, such as televisions, refrigerators, computers, lighting fixtures, and so on. It can power a 2HP motor, such as an 18,000btu air conditioner.
Where is the 3kw solar system kit suitable for installation?
1. Small and medium-sized families: suitable for families of 2-4 people, able to meet basic daily electricity needs such as lighting, television, computers, and refrigerators.
2. Small residences or apartments: suitable for small residences or apartments with limited roof area, which can effectively utilize space for power generation.
3. Remote areas: suitable for remote areas without power grid coverage, such as mountainous areas, islands, or pastoral areas, providing an independent power supply.
4. Small commercial premises: can meet the daily electricity needs of small offices, shops, or studios, reducing operating costs.
5. Emergency and backup power supply: suitable for places that require a backup power supply, such as emergency rescue, camping, or ships, to ensure power supply.
6. Eco-friendly households: suitable for households that value environmental protection, reduce carbon emissions, and save electricity costs through power generation.
7. Agricultural facilities: can be used for agricultural irrigation, livestock farms, or small greenhouse power supply, reducing production costs.
How to maintain a 3 kw solar system?
1. Regular cleaning of solar panels: Clean the solar panels every 6 months to remove dust, bird droppings, and debris to maintain optimal efficiency.
2. Check for obstructions: Regularly trim the surrounding trees and shrubs to avoid shadows blocking the solar panels.
3. Check for component damage: Check the solar panel quarterly for cracks, loose wiring, or corrosion.
4. Monitoring system performance: Use monitoring tools to check the system’s power generation and efficiency every month and promptly detect any abnormalities.
5. Maintain the inverter: Check the inverter indicator lights monthly to ensure good ventilation and avoid overheating.
6. Pay attention to ventilation: Ensure that there is sufficient ventilation space around the solar panel and inverter to avoid overheating and affecting performance.
7. Avoid using harmful chemicals: Avoid using corrosive chemicals during cleaning to prevent damage to the surface of the panel.
8. Check the battery (if any): Regularly check the electrolyte level and connection of the energy storage battery to ensure its normal operation.
3KW Solar Power System FAQ
A 3kw solar system consists of 3kw PV panels and a 3kw inverter. The electricity generated by the PV panels is used by the household load during the day, and the excess electricity is stored in the batteries and can be used at night when the electricity consumption peaks.
The 3kw solar system can load one air conditioner not higher than 18000btu or two air conditioners with 9000btu.
A 3kw solar system has six 550watt solar panels, 6×550=3300watt.
The 3kw solar system can support common household appliances up to a total power of 3kw, or no more than 2HP in the case of appliances with motors.
A 3kw solar system can produce 3kw of power when the day is fuller, and less than 1kw if it’s morning or afternoon.
The cost of a 3kw solar system is between 700 and 2000USD, depending on whether you need batteries for backup and whether you need to sell the excess power to the utility.
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