How Can Household Distributed Photovoltaic Power Stations Increase Power Generation?

1. Strictly control the quality of solar power plants

Photovoltaic modules, inverters and batteries are not general consumer products, with a life span of several years or decades, but their long-term reliability should not be judged only by appearance. In order to ensure the quality and long-term reliability of photovoltaic products and components, users can take the following measures:

(1) The most basic is to require the manufacturer to provide authoritative test and certification reports to ensure that the technical performance of the products submitted for inspection meets the technical standards and passes the third-party test, and the mass-produced products are in accordance with the same standards as the products submitted for inspection. Production.

(2) Since photovoltaic modules and inverters are not short-term consumer goods, they need to be checked again after one year of operation.

(3) In addition to the quality of products and components, the design and construction of photovoltaic projects are also very important. In order to ensure the quality of the project, the project developer can also entrust a qualified and experienced third party to review and supervise the whole process of engineering design, construction and installation, and project inspection.

2. Pay attention to the safety of photovoltaic power generation systems to prevent catastrophic accidents

Safety is the most important part of the quality of a photovoltaic system. The safety of photovoltaic system includes: building safety, power grid safety, anti-electric shock, system wind resistance, lightning protection, fire prevention and arc prevention, anti-theft, sand storm prevention, etc. Building safety includes building load, anti-leakage, non-destructive insulation layer and building fire protection. Building safety assessment needs to be carried out by professional departments. Distributed photovoltaics combined with buildings should first pass building safety assessment before construction. If the insulation of the pole is damaged, a parallel circuit arc will occur, and the damage to the ground insulation will cause an arc to the ground. Therefore, if the quality of the cables, connecting devices, contactors, and circuit breakers is faulty, or the engineering installation is not careful, arcs may occur. cause a fire.

The wind resistance of the system needs to be designed according to the local maximum wind speed within 30 years, but it needs to be optimized and balanced among various factors such as the installation inclination of the phalanx, annual power generation, and building load, land occupation, and shadow shielding. The load is directly related. The inclination angle of the square array designed to maximize the annual power generation may need to withstand greater wind loads, thus requiring greater counterweights, which just exceed the maximum load that the building can withstand, which requires changing the policy inclination to adapt to the building load. For another example, a high inclination angle requires a larger land occupation, which increases the cost. Sometimes the roof area is limited, which does not allow a larger spacing between the square arrays. Therefore, the wind resistance design of the square arrays needs to be adapted to local conditions.

3. Pay attention to daily operation and maintenance work

(1) Choose a manufacturer with data monitoring services, so that you can view the power generation data of the power station anytime and anywhere, so as to find and solve problems in advance.

(2) Choose a manufacturer with after-sale quality assurance services that can provide regular after-sale inspections.

(3) Strengthen daily cleaning and maintenance to improve the conversion efficiency of photovoltaic modules.