Solar Cells Still Work After Sun Sets

Grengy analyzes with you about cost control of solar energy system. Features of solar power station  are high initial investment cost and low operation and maintenance cost. In the economic analysis of solar power generation, the cost and benefit should refer to the total cost and total benefit in the life cycle of the solar energy system.

Policy subsidies are an important factor that must be included in the analysis process and can offset part of the construction cost of grid-connected photovoltaic systems. Life cycle cost of grid-connected solar power generation system = investment cost + operation and maintenance fee - subsidy, investment cost of grid-connected solar power system, including solar modules, batteries, inverters, power distribution cabinets, brackets, cables and other equipment and material purchase costs, There are also engineering construction fees and transportation fees; operation and maintenance fees include operator wages, maintenance fees for electrical equipment such as inverters, solar module cleaning fees, etc. The operation period of solar energy systems is generally 20-30 years; construction and operation of solar mounting systems The total amount of policy subsidies enjoyed during the period. Unlike coal-fired and oil-fired power generation, which requires purchasing, transporting, storing energy and disposing of residues, the input energy of the solar photovoltaic power generation system comes from the sun, and the solar system does not require other energy during the operation period, and almost no residues are produced. 

If the solar array is fixedly installed, there are no vulnerable rotating parts in the photovoltaic system, and the service life of major electrical equipment such as components is more than 20 years, and the maintenance workload of the system is also very small. Therefore, the operation and maintenance cost of the solar energy system is significantly lower than that of the traditional power generation system. The benefit of the solar system is proportional to the power generation, and the factors that determine the power generation of the solar system are the rated capacity of photovoltaic modules, the amount of on-site solar radiation and the efficiency of the solar system.

The rated capacity of the solar module is the peak output power of the photovoltaic module obtained under the standard test conditions. Since the field conditions are different from the standard test conditions, the actual output power of the solar support module mainly depends on the amount of solar radiation on site. In addition, the output power of the solar system should also take into account the effects of various losses and aging derating. 

Solar power generation is greatly affected by the weather, and it cannot generate electricity on rainy days. Therefore, the local weather should be considered when designing the system. Users who have requirements for electricity consumption should also consider the number of consecutive cloudy and rainy days. Diesel power generation cost analysis The life cycle cost of diesel power generation is: the investment cost of diesel power generation, mainly including the purchase cost and engineering cost of the diesel generator set and supporting facilities; the fuel cost during the life cycle; it is the operation and maintenance cost during the life cycle of the unit. Mainly include maintenance costs, oil and other consumables costs during the life cycle of the unit.

Compared with the fixed solar bracket and the tracking bracket, the investment cost of the tracking bracket is large, and the labor cost of the later maintenance is large. The cost of photovoltaic power generation has reached an economic level with the cost of grid power supply, which can form a more economical photovoltaic system for electricity consumption. In areas without power grid, the diesel generator set and the solar energy system constitute a hybrid power supply system. Compared with the diesel generator set alone, the maintenance cost is low, there is no noise, and the power generation cost is also low. Now the solar off-grid system has also begun to enter people's field of vision. Practice has proved that in large-scale projects, diesel generator sets and photovoltaic systems constitute a hybrid power supply system with better economy. The economic analysis of grid-connected solar power generation should carry out a detailed analysis of the costs, subsidies and benefits in the entire life cycle, not only the initial investment cost.

We offer solar mounting solutions for all roof and ground. All Grengy Solar installation solutions are designed based on the on-site environment. GREENGY's professional technical team analyzes the structural form of the building, combines the arrangement, sunlight and angle, provides various feasible solutions, and determines the most efficient, convenient, safe and reliable solution.

GREENGY Solar's various efficient and flexible photovoltaic mounting solutions are waiting for you here! Welcome to consult aria@grengysolar.com.