1. If you have a power grid over there, you can choose to connect to the grid for power generation. If you don't need batteries, you can basically be self-sufficient at 250kw during the day, and you can also get electricity from a small amount of power grid. In this way, the whole system includes: solar panels, inverters, mounting brackets (we choose to fix at low latitudes, and you can choose dual-axis tracking at high latitudes, which costs a little more), cables and supporting devices, confluence and protection devices, labor costs and others. If the labor cost in Qinghai is slightly higher than that in the mainland, it is also 200W W, and the main cost is solar panels, followed by inverters and mounting brackets, accounting for more than 85% of the total cost. At night, electricity will be completely taken from the urban power grid.
2. If you can go through the relevant procedures and get the support of relevant policies, you can design a 500kw power generation system without batteries. The inexhaustible electricity generated during the day can be transmitted to the power grid, which is equivalent to selling electricity during the day and buying it back at night. The total system price is the same as the above 1 system price *2.
3. If the power generation system with energy storage device is designed as 500kw, the total price of system 2+ energy storage device is about 25W, which is about 4.2 million. It should be reminded that the later maintenance cost of energy storage batteries is high. Generally, the life of lead-acid batteries is only a few years, while the design life of other systems is generally more than 20 years, which is basically maintenance-free.
What I gave you was the internal installation fee.