Solar-ShangHai EnYang solar technology CO.,LTD

The standard crystal silicon photovoltaic assembly can be used for at least 20 years under the conditions of proper installation. The actual life of the accumulator can last about 5-12 years if the model selection is correct and with appropriate maintenance. It is affected by the system type and working temperature. The charge controller of the system can last for more than 10 years. Therefore, if it is required the whole system can be used for 20 years, the expenses for exchanging the accumulator and the controlling unit shall be considered.
The using life of the accumulator in the photovoltaic system has a close relationship with the reasonable design of the system configuration and appropriate maintenance. The users shall make the choice between the price and the expected life. Surely, the most expensive battery will not have the longest using life. KLY is the expert to select the most appropriate accumulator in solar power system.
Under normal conditions, the expecting life of the accumulator designed in the system is within the following range (it is still related to the temperature of the specific using environment):

● Industrial system: 6-12 years;

● Rural power station system: 5-10 years;

● Villa home system in Australian areas: 5-10 years;

● The actual life of the common vehicle accumulator in the photovoltaic system will not exceed two years and we ca provide you more reliable selection.

Maintenance Requests

It is no need for maintenance for the photovoltaic assembly. Under major meteorological conditions, if the installation angle is above 15 degree, it can remain self-cleaning.

It is necessary to refill liquid every 6-12 months for the open accumulator. Normally, the sealing accumulator is free of maintenance but it is better to inspect once every 6-12 months for necessary cleaning.

It is no need to maintain the charge controller of the system. During system inspection, check the working status of the controller at the same time. The controller will issue alarm at system failure. The system still can work through the standby controller even at the emergencies.

Cost Comparison of Photovoltaic System and Other Powers

For cost comparison, we cannot only consider the preliminary investment, but also consider the possible expenses during continuous working within the stated age limit of the power system. There are following reference points:

The operation cost of the photovoltaic system is nearly null until it is necessary to exchange the battery.
The electric network expansion also causes higher preliminary investment; specifically, according to the network distance, user's quantity to share the expenses. Additionally, it also needs transformer and safety equipment etc, as well as the operation cost.
The diesel power generation possibly has lower preliminary investment but has a high operation cost, especially transporting the fuel or dispatching servicing personnel to the remote areas. As some other engines, the price of the special spare parts possibly is very high and it cannot be obtained within short time.
The original assembled battery has an extremely high operation cost (it is possibly 100 times than the power price of the electric network). Furthermore, the cost to dispatch servicing personnel for failed battery exchange is also very high. In addition, the waste and old battery treatment in a responsible manner also brings higher cost.