The first, second and third grade electricity prices are 0.573 yuan per kilowatt hour, 0.623 yuan per kilowatt hour and 0.873 yuan per kilowatt hour respectively. According to the official website of Shiyan Power Grid, the electricity price in Shiyan City is calculated according to the grading standard of annual ladder. The first grade is 0 to 2 160 degrees, the second grade is 2 16 1 to 4800 degrees, and the third grade is 480 1 degree and above. Shiyan Power Grid "one household, one meter" residential users, the first, second and third grade electricity prices are 0.573 yuan per kilowatt hour, 0.623 yuan per kilowatt hour and 0.873 yuan per kilowatt hour respectively.