[zapdrive]

> We know how many BTU equivalent are used for electricity generation vs gasoline for transportation. And how much BTU equivalent is needed to power electric cars.

Show us the data.

> There is.

There is literally no relation.

"Cars use 27% of total energy in US. And 25% of 27% is equal to 7% of electricity generated." HOW??

[onlyrealcuzzo]

I already did.

[zapdrive]

Unless you show us data on how much %age of total energy usage is electricity, there is no relation between the two!

According to some sources, electricity accounts for about 20% of total energy usage. So with your numbers, we would need extra 6.75% of total energy used. 6.75% of 20% is an extra 33.5% of electricity.

[onlyrealcuzzo]

It's literally right here: https://www.eia.gov/energyexplained/us-energy-facts/

100.4q BTU total US energy usage.

37.8q BTU electricity (~37% or ~18% depending on how you count loss).

27.5q BTU transportation (~27% OR ~36% depending on how you count loss).

You're assuming that ~60% of NEW electric generation will come from fossil fuels. We won't have a ~60% loss in electric generation from solar & wind - which is currently ~90% of NEW generation. In 5 years, coal & natural gas will likely drop to ~0% of NEW generation.

[gruez]

So you admit your original conclusion of "we only need 25% * 27% = 7% more electricity." is wrong?

If you take energy use used for transport (27.47), multiply it by 25% (because it's more efficient), you get 6.87. That's 18% of how much we generate in electricity today (37.75), not 7%.

[zapdrive]

Ok, 25% of 27.5q BTU = ~ 7q BTU

So we need extra 7q BTU of electricity, right? Which is about 18% of 37.8!

So, not 7, not 9, we would need at least 18% extra electricity.

TLDR: Your math was wrong!