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What's the smallest diesel generator that can charge an electric car to 20% (in less than a day)?

by seydor 3y ago

mattmaroon 3y ago
How much time does it have to do so?
- RuggedPineapple 3y ago
  That's the real question, because with enough time you could do it with a hand cranked dynamo.
  - fragmede 3y ago
    they should outfit vehicles with bicycle pedals inside so you can charge the car while you drive it, and get exercise too!
PaulKeeble 3y ago
A typical mid range EV (say 250 miles) is about 50 KWH. So to just get 20% you only need 10KWh. The smallest generators are around 12KG and put out about 1.1KW but they tend to only run a couple of hours due to small tanks. About double that at 22KG you have something with more reasonable run time and puts out 2KW (https://www.amazon.co.uk/Panana-Aokaidun-Portable-Inverter-Generator/dp/B0CFLD55RW https://www.amazon.co.uk/Panana-Aokaidun-Portable-Inverter-G...) and within its typical 6 hour runtime is going to get you 20% and in a 24 hour cycle with refills gets you nearly a full EV. This suggests to charge the car fully you would need about 4 x 4 Litres of fuel, that is 16KG of fuel and 22KG of generator your carting around in the back of the car, its basically a persons extra of weight for one refill which would take about day to complete.
greenavocado 3y ago
Using the power consumption figure of 87.8 kWh at the wall for a Model 3 with this methodology https://electrly.com/ev-charging-guide/tesla/model-3/how-many-kwh-to-charge-a-tesla-3 https://electrly.com/ev-charging-guide/tesla/model-3/how-man... 20% or 17.6 kWh can be attained in 9 hours at 2000 watts output with a Honda eu2200i generator. This is the largest generator the average person can hold like a briefcase. Larger generators are insanely heavy.
fulafel 3y ago
This 10 kg turbine is probably the type of thing you'd be looking at if you require diesel fuel: https://fusionflight.com/arc/ https://fusionflight.com/arc/ It's still more powerful that needed so maybe there's something smaller. (Note that as of this writing products mentioned sibling comments are not diesel)

What's the smallest diesel generator that can charge an electric car to 20% (in less than a day)?

by seydor 3y ago

What's the smallest diesel generator that can charge an electric car to 20% (in less than a day)?

mattmaroon 3y ago

How much time does it have to do so?

RuggedPineapple 3y ago
That's the real question, because with enough time you could do it with a hand cranked dynamo.
- fragmede 3y ago
  they should outfit vehicles with bicycle pedals inside so you can charge the car while you drive it, and get exercise too!

PaulKeeble 3y ago

A typical mid range EV (say 250 miles) is about 50 KWH. So to just get 20% you only need 10KWh. The smallest generators are around 12KG and put out about 1.1KW but they tend to only run a couple of hours due to small tanks. About double that at 22KG you have something with more reasonable run time and puts out 2KW (https://www.amazon.co.uk/Panana-Aokaidun-Portable-Inverter-Generator/dp/B0CFLD55RW https://www.amazon.co.uk/Panana-Aokaidun-Portable-Inverter-G...) and within its typical 6 hour runtime is going to get you 20% and in a 24 hour cycle with refills gets you nearly a full EV. This suggests to charge the car fully you would need about 4 x 4 Litres of fuel, that is 16KG of fuel and 22KG of generator your carting around in the back of the car, its basically a persons extra of weight for one refill which would take about day to complete.

greenavocado 3y ago

Using the power consumption figure of 87.8 kWh at the wall for a Model 3 with this methodology https://electrly.com/ev-charging-guide/tesla/model-3/how-many-kwh-to-charge-a-tesla-3 https://electrly.com/ev-charging-guide/tesla/model-3/how-man... 20% or 17.6 kWh can be attained in 9 hours at 2000 watts output with a Honda eu2200i generator. This is the largest generator the average person can hold like a briefcase. Larger generators are insanely heavy.

fulafel 3y ago

This 10 kg turbine is probably the type of thing you'd be looking at if you require diesel fuel: https://fusionflight.com/arc/ https://fusionflight.com/arc/ It's still more powerful that needed so maybe there's something smaller. (Note that as of this writing products mentioned sibling comments are not diesel)