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> If you don’t believe me you can look up the per capita energy consumption per American and observe that it is basically stagnant since 1970 I think the more
by dntrkv 5y ago
> If you don’t believe me you can look up the per capita energy consumption per American and observe that it is basically stagnant since 1970
I think the more likely explanation for that is optimization. Look at cars as an example. In the first half of the century, we built cars without much of a focus on fuel economy. As we scaled up the amount of cars we produced and in turn, the oil resources we consumed, we began to optimize the efficiency of these cars. Compare a car from 1970 and 2020, and you see a much more reliable, efficient, safe, comfortable car. So the per capita consumption has been reduced by using less gas and also having to replace the cars less often while providing a better quality of life.
There are similar stories across every industry.
So I don't see how looking at our per-capita energy-use as a major contributor in this discussion. That's not to say energy prices have had no effect, but I could make the opposite argument that energy prices have forced us to innovate past burning things we find in the ground.
As far as renewables go, I'm not an expert in this space, but it seems like we have the technology and resources to implement a reliable green energy grid. We just don't have the political will to do so.
If we had the political cohesion to muster up an equivalent to the Interstate Highway System project, but for energy generation/transmission, it would propel us into a new era.
- thewarrior 5y agoHow much more efficient can a car become ? It’s not as much of a change as going from horses to cars.
- dntrkv 5y agoAverage efficiency of a car in 1970 was 11 MPG. Today we are at an average of 25 MPG (and that's only because gas is still too cheap) and many non-electric cars get up to 40 MPG. Newer electric cars like the Model 3 are at about 130-150 MPG. As the transition to electric cars accelerates, our energy use will see a significant decline. Transportation makes up 35% of our total energy use in the US. Going from an average of 25 MPG to a conservative 50 MPG will have major impacts on our energy sector.
- thewarrior 5y agoElectric cars are only a fraction of transportation energy costs. Electric trailer trucks and electric airplanes are far less feasible because of the poor energy density of batteries. I’m also talking about the cost of the car itself. Sure there are improvements but they are not improving at the rates they used to. An electric car is still too expensive for a lot of people around the world.