how many watts does an electric vehicle use?
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There is a direct conversion between horsepower and watts: 745.7 watts is 1 horsepower. Car motors for modern vehicles range from about 50 horsepower to 500 horsepower or more. An average medium size family car might have a 150 HP motor. To duplicate that with an electric motor you would need 111,855 watts of power.
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How much electricity does a laptop use per hour in the UK? A laptop typically uses about 50 watts of electricity, the equivalent of 0.05 kWh. This means that if a laptop is on for eight hours a day, it will cost 5p a day to run the laptop (based on an average energy unit cost of 12.5 p/kWh).
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Conventional solar panels usually produce about 250 watts per panel, with varying levels of efficiency. In contrast, SunPower panels are known to be the most efficient solar panels on the market.
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Watts are Volts x Amps so say you need 2400 watts to crank a car engine (about the same as an electric kettle) - then you could theoretically have that as 12v x 200 amps (2.4kW) or 120v x 20 amps (same 2.4kW) or even 240v x 10 amps (still 2.4kW) - but asking how many volts without knowing the current (amps) is ...
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Electric cars vs petrol cars With the average UK electricity price sitting at around 14p per kWh and if you assume an electric car will travel 3.5 miles per kWh on average, to travel 100 miles would cost around £4 or 4p per mile.
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W is the power consumption in watts. For example, if the electric motor uses 50 amps at 240 volts, the wattage is 50 x 240 x 1.73, or 20,760 watts. Electricity costs are based on kilowatts (kW), so divide watts by 1000 to convert to kilowatts (20,760 wats/1000 = 20.76 kW). Record the time the motor is in operation.
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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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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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EVs have several advantages over conventional vehicles: Energy efficient. EVs convert over 77% of the electrical energy from the grid to power at the wheels. Conventional gasoline vehicles only convert about 12%–30% of the energy stored in gasoline to power at the wheels.
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It is easy to convert HP to watts based on the equivalence of 746 watts per horsepower and arrive at 5 HP = 3730 watts. However, in practice, motors seldom run at their nameplate current (FLA or Full Load Amperage).
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Noting that our units both have hours in them. So here's how we make them the same, watts =amps times volts. Thus a car battery has a Wh rating of its voltage, 12 in cars, times its Ah rating, usually 40+ depending on car engine size. So a basic car battery has about 500 Wh.
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Power Inverter, 150 Watts. Plugs into the 12-volt lighter socket in your vehicle or boat. Coverts battery power into household AC power. Operate up to a 13" TV-VCR, camcorders, radios,musical instruments and satelitte equipment computers and other tools and DC appliances in your vehicle.
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A watt equals a joule per second. If a smart phone uses five joules of energy every second, then the power of the phone is five joules per second, or five watts. The animation above demonstrates the difference between energy and power.
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Power consumption on buses with full-electric heating, “diluted” over 100 km, stands in the range between 179 and 235 kWh. In other words, consumption is reported to span between 1 and 1.4 kWh/km on buses with fossil fuelled heating systems, and up to 2.35 on electrically heated ones.
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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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"A home charging station costs between $800 - $2,000." In B.C., if power costs $0.10 per kilowatt-hour, an EV ends up costing about $0.016 per km, Argue says. "A rule of thumb is the cost to fuel an electric car is about an eighth of the cost of a gas-equivalent vehicle," Argue says.
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Depending upon where you live, charging an electric vehicle typically requires 7 or 9 solar panels. Again, it's worth noting that these calculations are based heavily upon the assumption that you drive the same amount per year as the average American driver.