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The Water Cooler
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The Tesla Electric Truck
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<blockquote data-quote="Hobbes" data-source="post: 3296760" data-attributes="member: 3371"><p>With respect to going up hill, yes extra energy will be removed from the batteries just like a gasoline truck would require more fuel to climb that grade.</p><p>Hills and mountains usually have 2 sides though and on the downhill side most of that energy would be regenerated back into the batteries.</p><p></p><p>EVs are wildly efficient.</p><p>Consider....</p><p>In a gasoline or diesel vehicle a lot of the energy is converted into wasted heat from the combustion process itself.</p><p>Then some, call it X amount, energy is used to accelerate the vehicle to say 40mph.</p><p>Now we come up to a stop sign or red light.</p><p>When we apply the brakes that X amount of kinetic energy is converted to even more heat in the brakes and lost to the atmosphere.</p><p>When the light turns green we have to burn more fuel and convert it into kinetic energy to move the vehicle back up to 40mph.</p><p>Over and over again.</p><p>if it had been an EV the braking process would have regenerated most of that kinetic energy and recharged the batteries.</p><p></p><p>On average, an internal combustion is only 20% efficient.</p><p>Only 20% of the energy consumed is converted to mechanical work.</p><p>EVs frequently exceed 75% efficiency.</p><p></p><p></p><p>Here is a video that crunches some $ figures.</p><p></p><p>[MEDIA=youtube]7bIBs8GuUYY[/MEDIA]</p></blockquote><p></p>
[QUOTE="Hobbes, post: 3296760, member: 3371"] With respect to going up hill, yes extra energy will be removed from the batteries just like a gasoline truck would require more fuel to climb that grade. Hills and mountains usually have 2 sides though and on the downhill side most of that energy would be regenerated back into the batteries. EVs are wildly efficient. Consider.... In a gasoline or diesel vehicle a lot of the energy is converted into wasted heat from the combustion process itself. Then some, call it X amount, energy is used to accelerate the vehicle to say 40mph. Now we come up to a stop sign or red light. When we apply the brakes that X amount of kinetic energy is converted to even more heat in the brakes and lost to the atmosphere. When the light turns green we have to burn more fuel and convert it into kinetic energy to move the vehicle back up to 40mph. Over and over again. if it had been an EV the braking process would have regenerated most of that kinetic energy and recharged the batteries. On average, an internal combustion is only 20% efficient. Only 20% of the energy consumed is converted to mechanical work. EVs frequently exceed 75% efficiency. Here is a video that crunches some $ figures. [MEDIA=youtube]7bIBs8GuUYY[/MEDIA] [/QUOTE]
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