how many kilowatts does it take to charge a car?
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Most electric cars get between 3 and 4 miles per kWh. Drive 60 miles, and your electric car will probably require between 15–20 kWh to recharge. Power. Power measures how fast the energy is delivered.
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An average electric car consumes approximately 0,20 kWh/km. On a daily basis, this makes approximately 47 kilometers of driving.
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A standard EV battery requires 30 kWh per 100 miles. 1 Using the average national residential utility rate of about 13 cents per kWh, we can find how much it costs to drive those 100 miles.
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Charging at home or work is possible via a standard electrical power point (240 volt AC / 15 amp electricity supply). The rate of charge will depend on the EV's on-board charger – 2.5 kilowatts (kW) to 7 kW is usual. So at 2.5 kW, a Nissan Leaf will be fully charged overnight1.
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An average electric car consumes approximately 0,20 kWh/km. On favourable weather conditions the consumption can be even 0,15 kWh or less, but year-around average in most countries is closer to 0,2 kilowatthours.
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So, fully charging your car battery will cost you about 5 cents of home electricity. A new battery is in the $100 range. How long will the charging take depends on the power of your charger, with 10-16 hours being typical (slow is good, puts less strain on the battery internals).
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The Prius Prime takes 7.2 – 8.8 kwh to charge a fully drained battery.
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The cost to charge a Chevy Volt depends on electric rates where you live. Around the U.S., electric rates generally range from around 10 to 20 cents per kWh. This means that, in general, it will likely cost you somewhere between around $2-5 to charge your Chevy Volt from empty.
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Charging at home or work is possible via a standard electrical power point (240 volt AC / 15 amp electricity supply). The rate of charge will depend on the EV's on-board charger – 2.5 kilowatts (kW) to 7 kW is usual.
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To charge the car engine must be running. To explain further, the open circuit voltage of 12.9 volts is not enough to move the chemistry even in a fully discharged battery. You need to be above 12.9 to start the chemistry moving at all, and up at 13.5V to charge at a significant rate.
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Summary. The time it takes to charge an electric car can be as little as 30 minutes or more than 12 hours. This depends on the size of the battery and the speed of the charging point. A typical electric car (60kWh battery) takes just under 8 hours to charge from empty-to-full with a 7kW charging point.
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Charging a mid-sized car battery with a typical charge amp of around 4-8 amperes will take about 10-24 hours to charge it fully. To charge your battery to be able to start your car, it would take around 2-4 hours. You can charge your car battery fast, but it may cause damage to your car battery.
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For this case, let's take into account a 120 volt charger that draws 10 amps. Volts multiplied by amps yields watts as the product, so the result is 1,200 watts. Divide 1.2 kilowatts by an hour and an electric golf cart consumes about 1.2 kWH.
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A Chevrolet Bolt, which is EPA-rated at 28 kWh/100 miles and is one of the more efficient EVs available, would need at least a 3.5-kW system to get 50 miles of range per daily charge. Such a system costs about $7,000 and doesn't include the cost of a storage battery to hold power for overnight charging.
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Electricity Costs for Charging If electricity costs $0.11 per kilowatt-hour, charging an EV with a 70-mile range (assuming a fully depleted 24 kWh battery) will cost about $2.64 to reach a full charge.
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Cost to Charge a Chevy Volt. The cost to charge a Chevy Volt depends on electric rates where you live. Around the U.S., electric rates generally range from around 10 to 20 cents per kWh. This means that, in general, it will likely cost you somewhere between around $2-5 to charge your Chevy Volt from empty.
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Cost to charge an electric car at home Most drivers will charge their electric car overnight, waking up to a full battery every morning. Average domestic electricity rate is about 14p per kWh.