1. Equipment usage fee: This is the most direct cost in the leasing model, including the power and capacity of the energy storage system. Depending on the region and the size of the project, the rental fee will vary, generally between 200 and 600 yuan/(kW·h·a).
2. Operation and maintenance costs: including cleaning, monitoring and minor repair and maintenance, etc., this part of the cost is about 70,000 to 150,000 / year. The exact cost will vary depending on the size of the energy storage system and the complexity of operation and maintenance.
3. Software fees: Some rental services may include the cost of monitoring and control software for the energy storage system.
4. Installation cost: Costs involved in the installation process of the energy storage system, including labor and materials.
5. Taxes and fees: Under the leasing model, the taxes and fees that enterprises need to pay are also part of the expenses.
6. Venue rental fee: For light storage projects that require a venue, the venue rental fee is also an important cost, and the cost will vary according to the region. For example, the leasing fee for the industrial and commercial light storage project is 618,000 yuan/year.
7. Insurance: The cost of insuring the energy storage system to reduce the risk of unexpected losses.
8. Repair costs: the repair and maintenance costs that may be required during the use of the energy storage system.
9. Other supporting equipment and expenses: including monitoring and control system, power distribution room construction, communication and security equipment, etc., the total cost may be between 330,000 yuan and 550,000 yuan.
10. Grid connection, intermediary, insurance and other miscellaneous: the total cost may be about 300,000 yuan.

These costs constitute the total cost of the optical storage system leasing model, and enterprises need to consider these costs comprehensively when considering leasing optical storage systems to evaluate the economic benefits of the project.