Key questions include:1. Should a solar system be installed? This depends on the customer's budget, roof suitability, local incentives, and long-term planning.2. What is the household's electricity consumption? What is the total household load in kilowatts? Is the mains power supply stable? Is the purpose of installation to save on electricity bills or to ensure a stable power source?3. How much sunshine is available locally? Does the local power grid allow for solar power integration?

1. Should You Install a Solar System?

Please consider these points first.

a) Are your electricity bills high?

If you have high bills, you can consider on gird system. If you there always lack of electricity, off grid system is best. If your goal is simply to save on electricity bills and generate profit by selling excess solar power, hybrid system is recommended.

b) What is your rooftop materical and area?

What is the area of ​​the roof that can receive sunlight? Do you know anything about the materials used in the roof?

c) Do local incentives offset costs?Federal tax credits (e.g., the U.S. 30% ITC), state rebates, and net metering programs can reduce upfront costs by 30–50%. Check databases like DSIRE (dsireusa.org) for incentives in your area.

Photovoltaic systems generate green, clean energy. As a sustainable and clean energy source, solar energy has entered millions of households. Feel free to contact us if you are also planning to purchase one.

2. How Many Solar Panels Do You Need?

Sizing your system involves three steps:

Step 1: Your daily electricity consumption
Review 12 months of utility bills to find your annual kWh consumption. The average U.S. home uses 10,700 kWh/year. Divide this by your area’s “peak sun hours” (e.g., 4 hours/day in California) to estimate system size

Step 2: Assess roof space
Design plan based on your roof area and daily electricity consumption.

Step 3: The system supports parallel operation, enabling capacity expansion.

On grid system, off grid system, hybrid system

3. Choosing the Right Inverter

Inverters convert solar DC power to usable AC electricity. Three types dominate the market:

a) String Inverters

b) Off grid Inverters

c) Hybrid Inverter

Key Metrics:

Efficiency: Look for >97% efficiency (e.g., Enphase IQ8 or SolarEdge HD-Wave).

Warranty: Opt for at least 10–12 years.