Comment by philipallstar
5 hours ago
> comparison of spent energy for fossil fuels vs electricity is not a good way to do it because electric motors use less for the same output. Compare kWh per 100km for an ICE car and EV. Electrification will lead to a drop simply because of this
Yes but there are losses in generating electricity, and in transmitting it as well. If you only measure from energy in your car's battery to motion you're right, but I don't think that's a useful measure.
Then you also have to account for losses in drilling oil, shipping it to a refinery, refining it into gasoline or diesel, shipping it to a distribution hub, then to a gas station. And all the electricity consumed in doing that. And the navy and coast guard ships that need to patrol all the oceans to keep the oil tankers safe. And...
Yes, and the same for building and fuelling the power station I suppose. That's why I'm saying you need to pick a sensible point to compare efficiency at.
Building power stations is a one-time cost. If the power station is solar or wind, same thing, only no fuel. Not the case for fossil fuels.
Solar panels or windmills are like oil drills. They aren't oil.
There are no losses in generating from solar which is the topic of the article. There is no loss since there is no fuel. There is a loss in transmission but not enough to offset the roughly 4x reduction in energy use. As the other person also pointed out, there is the same loss in transmission for e.g. combustion engines. You don't pour the gasoline that came out of your back yard. It's extracted and processed for most of the world somewhere very far away and then transported. If anything, the losses in electricity are less than the energy required to transport these huge amounts of fossil fuels.