8000 kwh. It is necessary to calculate the electric energy consumed by an electrical appliance with a power of 8 kilowatts for one hour. First of all, we need to understand the relationship between power and electric energy. The relationship between electric energy (E) and power (P) and time (T) can be expressed by the following mathematical formula: e = p× t This formula tells us that the consumption of electric energy is the product of power and time. In this problem, power p = 8kW = 8000W and time t= 1 hour. Substitute these values into the formula and you can get the answer. The calculation result is: an electrical appliance with a power of 8 kW consumes 8000kWh in one hour. So, 8 kW travels 8,000 kWh per hour.