73310766 yuan.
About 50 kilowatts per mu, and 50 acres can install 2,500 kilowatts. One acre of land is equivalent to 666 square meters and the size of a 330 watt photovoltaic panel is 1.6 square meters. After converting the difference and installing the other necessary parts, that's almost 50 kilowatts. The cost of photovoltaic construction is about 3 yuan/w, which requires an investment of 2,443,6922 times 3, which is equivalent to 7,3310,766 yuan.
If operating costs are not included in 50 acres of photovoltaic power generation, the cost will be recovered in 3 to 4 years. Of course, operating costs cannot be ignored. In fact, it will take almost 10 years. years to recover the cost.