jsamp17
Member
80mph for 5 hours so a 400 mile trip.
1.25miles / kwh efficiency with a 200kwh battery has us at 250 miles. We need 150 miles ER.
150 additional miles at the same efficiency would need 120kwh. To land at exactly 0% at the end of our trip means we have 5 hours to generate it -> 120kwh/5 hours means a 24kw generator would be needed.
(The generator can use the whole time because the 80mph at 1.25mi/kwh implies a burn rate of 64kw --this is more than the 24kw so there instantly "room" for the ER charge).
Quick backwards check:
200kwh + 24kw * 5 hrs -> 320kwh
320kwh * 1.25 miles / kwh -> 400mi
1.25miles / kwh efficiency with a 200kwh battery has us at 250 miles. We need 150 miles ER.
150 additional miles at the same efficiency would need 120kwh. To land at exactly 0% at the end of our trip means we have 5 hours to generate it -> 120kwh/5 hours means a 24kw generator would be needed.
(The generator can use the whole time because the 80mph at 1.25mi/kwh implies a burn rate of 64kw --this is more than the 24kw so there instantly "room" for the ER charge).
Quick backwards check:
200kwh + 24kw * 5 hrs -> 320kwh
320kwh * 1.25 miles / kwh -> 400mi
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