How much electricity does it cost to use air energy heat pump for heating in a year?

The air source heat pump is used to heat a family of 100 square meters. The actual heating area is about 80 square meters, and about 5 sets are needed. According to the installation calculation per square unit time, the heat dissipation is 40W per square (different buildings in different regions have different heat dissipation). The total power is about 3200 watts. According to the actual electricity consumption of 8 hours per day, the daily electricity consumption is 25.6 degrees. The monthly electricity consumption is 768 kWh, and the monthly electricity charge is around 230 yuan. The annual heating fee is calculated according to the heating time.