1. I want to install household solar power generation. How do I operate?
Answer:
- You communicate with the customer service of the installation company to understand the needs and consult and answer;
- You need to provide the project installation location, residential type, roof structure, roof area, upload roof photos, monthly average power consumption, etc;
- The installation company will provide the preliminary design scheme in detail according to the data and get your confirmation. If necessary, the installation company will arrange on-site survey.
- After preliminary negotiation and determination of business terms, both parties shall sign a business contract;
- The installation company provides grid connection application materials to your local power supply bureau;
- The installation company makes detailed scheme design for users;
- Supply and installation construction by the installation company;
- Grid connection.
2. What equipment does distributed solar power generation include?
Answer: the basic configuration is: solar panel, inverter, support, cable and installation accessories. Large power stations also need transformers, distribution cabinets and other auxiliary equipment.
3. How to estimate the installation and power generation of distributed solar power generation system?
Answer: it should be calculated according to the actual area available on your roof. For ground power plants and cement roofs, 80-100 watts of solar panels can be installed per square meter; For color steel roof and sloping roof, 100-120 watts solar panels can be installed per square meter
4. What is distributed solar power generation system?
Answer: distributed solar power generation system refers to the user side grid connected power generation system that uses solar panels to directly convert solar energy into electric energy. The system is located near the user. The generated energy is used locally and connected to the power grid at the voltage level of 10kV and below. The total installed capacity of a single parallel network (380V) is not more than 6MW, and the total installed capacity of a single parallel network at 220V user side is not more than 8kw.
It is generally composed of the following parts: 1. Solar panel; 2. DC combiner box (optional); 3. Inverter; 4. Two-way electricity meter (provided free of charge by the grid). At present, the most widely used distributed solar power generation system is the solar power generation project built on the roof of buildings. Such projects must be connected to the public power grid to supply power to nearby users together with the public power grid. The principle is “nearby power generation, nearby grid connection and nearby conversion”.
5. Application scope and installation mode of distributed solar power generation system?
Answer: the distributed solar power generation system can be installed in any place with sunlight, including the ground, the top of buildings, side facades, balconies, etc., among which it is most widely used in schools, hospitals, shopping malls, villas, residential houses, factories, roofs of enterprises and institutions, car sheds and the top of bus stop signs; There are three types of installation methods: concrete, color steel plate and tile.
6. How much do I have to pay per month for a solar power system?
Answer: after installation and use, the service life of solar system is generally more than 25 years. In the next 20 years, you will have net income and zero electricity charge.
7. Will the installation affect my roof?
Answer: the existing designs are overhead, which will not cause any damage to the roof or cause ponding.
8. Does distributed solar power generation have an impact on voltage, and will it affect the use of household appliances?
Answer: due to the small power of distributed solar power generation system, the impact on voltage can not be felt at all. Moreover, the function of the inverter is to convert the low DC voltage generated by the solar panel into 220V civil power, and the solar special inverter itself has the function of intelligent voltage regulation, so the use of solar power is no different from that of grid power, and will not affect the use of household appliances.
9. How about the safety of household solar power generation and how to deal with lightning, hail, electric leakage and other problems?
Answer: first of all, DC combiner box, inverter and other equipment lines have the function of overload protection. When lightning strike, leakage and other abnormal voltages occur, they will be automatically closed and disconnected, so there is no safety problem. Secondly, the surface of solar panels are made of super impact-resistant tempered glass.
When passing the EU certification, they have undergone rigorous tests and tests. They can withstand wind pressure of 2400pa and snow pressure of 5400pa. It is difficult to damage solar panels in general natural climate. In addition, each solar panel can operate independently. Even if one solar panel is damaged, it will not affect the normal operation of other solar panels.
10. With solar power generation, will we still have electricity when the power grid is cut off?
Answer: No, when the power grid is powered off, the grid connected power generation system stops working. If you need to use it spontaneously in this case, you can choose to add an additional battery and other devices. The battery has high price and short service life, so it is generally not recommended to install it.
11. How long is the service life of solar power generation system? Will maintenance be troublesome?
Answer: the service life of solar power generation system is up to 25 years, and the after-sales warranty period is 20 years. The installation company will have special after-sales service personnel for regular inspection and maintenance, because the whole system originally has the function of intelligent monitoring, so the maintenance is relatively simple. Generally, it is to remove bird droppings, leaves and other shelters on the solar panel. In addition, solar panels are modular and closed, and generally do not need to be repaired.
