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3千瓦一小时多少度电,会算电费超简单!一个公式全家都懂
Sou Hu Cai Jing·2025-09-01 20:21

Core Insights - The article emphasizes the simplicity of calculating electricity costs by understanding power and time, which helps identify energy-consuming appliances [1][2][4] Group 1: Understanding Power and Electricity Costs - The concept of power is introduced, with an example of an oven having a power rating of 3 kW, indicating its energy consumption [1] - A formula for calculating electricity consumption is provided: Power (kW) × Time (hours) = Consumption (kWh) [1] - The cost of electricity is calculated based on a rate of 0.6 yuan per kWh, demonstrating that using the oven for one hour costs approximately 1.8 yuan [2] Group 2: Practical Examples of Electricity Consumption - The article provides practical calculations for various appliances, such as a heater with the same power rating of 3 kW, costing 3.6 yuan for two hours of use [4] - An old kettle with a power rating of 1500 watts (1.5 kW) consumes 0.5 kWh for boiling water, costing about 0.3 yuan [4] - Other appliances are analyzed, showing that a refrigerator consumes 1 kWh over 10 hours and a heater consumes 2 kWh in one hour, highlighting the importance of energy efficiency [6] Group 3: Energy Efficiency and Savings - The article suggests that newer energy-efficient appliances can save up to 10% of electricity compared to older models, promoting long-term savings [4] - A reminder is given to unplug unused appliances to avoid standby power consumption, which can accumulate over time [6] - The overall message encourages families to estimate electricity usage before operating appliances, leading to cost savings and a greener lifestyle [6]