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Car radiator fans can replace windmills as a renewable source of energy

Shireesh Apte
Shireesh Apte May 08, 2022
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The radiator fan in a car currently is designed to spin either in response to a thermostat or continuously upon engine turnover. In either case, the power to turn the fan is provided by the car battery. If the fan were to be placed in front of the radiator (as opposed to the back as it currently is now), it could effectively harness the wind to turn it when the car is in motion. This 'pinwheel' could then be used as a generator to power another battery (the 'windmill battery') in the car. When the car pulls up at a petrol (gasoline) station, the engine could be kept running and the windmill battery could be used to feed power into the grid using the car's ignition coil as a step up transformer to create a positive voltage gradient between the windmill battery and the power grid. These 'millions of windmills' could obviate the need to build gigantic windmills. The vehicle operators/owners could be given credits on how much electricity they upload to the grid and use those credits toward a reduction in gasoline price.
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General comments

Spook Louw
Spook Louw19 days ago
This would be great! Do you have any idea how much power you would be able to generate on a fan of that size?
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Shireesh Apte
Shireesh Apte19 days ago
Spook Louw Thank You. Assuming a car battery is 12 V, 500 Ah, it can hold a charge of 1.2 KWh. Assuming it takes 30 minutes driving to fully recharge a battery, and assuming 1 hour driving per day, that would be 2.4 KWh of charge per day. 10 days driving would power a house for 1 day (24 KWh). you would need a battery to store 24 KWh and upload to the grid every 10 days. 50 million cars driving 10 days would power the entire single family housing stock of the US for 1 day. This is a first approximation.
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