Common photovoltaic new energy power generation consulting questions

Common photovoltaic new energy power generation consulting questions

1. Does the new photovoltaic energy power station have radiation?

Answer: Photovoltaic power generation converts light energy into electrical energy according to the principle of photoelectric effect, without pollution and radiation. The inverter has passed the electromagnetic compatibility test and is harmless to the human body.

2. Will there be lightning strikes or lightning strikes in the household electricity after a thunderstorm?

Answer: Photovoltaic power plants are equipped with lightning protection measures, install lightning protection grounding, and install lightning protection surge protection switches to protect the safety of the system and the power grid.

3. Is there a risk of electric shock in the new energy photovoltaic system?

Answer: Photovoltaic modules have undergone high-voltage insulation testing. The cables are protected by conduits. They are installed in a regular manner. Like household electricity, there is no risk of electric shock.

4. Is the voltage of the photovoltaic system stable?

Answer: The photovoltaic system generates direct current, which is converted into a stable 220V or 380V voltage through an inverter.

5. How stable is the photovoltaic power generation system? Will it fail in a few years?

Answer: Photovoltaic modules are made of crystalline silicon, with stable performance and a life span of more than 25 years. It is recommended to buy large-brand modules and inverters. After 20 years, the power generation efficiency can maintain more than 80%.

6. Confirm whether you can install household photovoltaics in your home?

Answer: First, you must have a roof that belongs to your own property rights, or a certificate of approval of the property, and you can apply to the Power Supply Bureau.

7. Can I get subsidies for both self-use and sale to the grid? Has the subsidy dropped?

Answer: The national policy subsidizes the entire power generation of the photovoltaic system. The state subsidizes for 20 years. The subsidy price is based on the subsidy price at the time of installation and grid connection, and remains unchanged for 20 years.

8. Is the roof leaking?

Answer: The roof is fixed by special stainless steel components, extending along the back of the tile, without damaging the roof structure.

9. How much does it cost to install a photovoltaic power generation system

Answer: It is determined according to the system capacity installed in the house, the difficulty of construction, and the selection of materials.

10. How much roof area is needed to install photovoltaic rooftop power generation system?

Answer: Generally 1KW requires 8-10 square meters

11. How soon can the photovoltaic system recover its costs?

Answer: The state and government subsidies are high. Shanghai is generally about 5 years, the system life span is 25 years, and the state subsidies are 20 years. The installation is economical and the benefits are high.

12. How many kilowatt-hours of electricity can the photovoltaic system generate in a day?

Answer: According to the average annual radiation level in Shanghai, 1000W generates about 3.8 kWh a day, and it can generate more than 6 kWh during the peak period of a sunny day.