Tek-Tips is the largest IT community on the Internet today!

Members share and learn making Tek-Tips Forums the best source of peer-reviewed technical information on the Internet!

  • Congratulations LittleInch on being selected by the Eng-Tips community for having the most helpful posts in the forums last week. Way to Go!

California high speed rail 1

According to Wikipedia, 57% of China's electricity in 2020 was generated by coal, and that percentage is growing.
Coal, diesel... it's still fossil fuel with a carbon footprint.
 
"China is the world's largest electricity producer, generating approximately 30% of the global electricity supply, primarily from coal, which accounted for 62% of its electricity generation in 2021. However, renewable energy sources are rapidly increasing, with over half of its installed capacity coming from renewables as of 2023."
The graphic below shows growth of coal electricity production out paces all other sources.



Coal.png
 
The problem with HSR America is not so much how fast the train can go, but the first and last mile(s). In the States, cities and population are pretty spread out.

You have to arrange transportation from your home to the station, park the car, deal with an Uber, etc. Gots to show up at the station somewhat in advance to avoid missing it. Then the train takes two or three hours to go north. Then at that station, gots to again get ground transport (friend, rental car, uber, etc). Second ground hassle might be an hour or two.

So total it up: 2hr get to station. 3hr in train. 2hrs station to destination. 7hrs total. Plus all the associated costs (Uber, parking, train ticket, rental car, etc)

Or you can drive your own car. 6.5hr total and your car shows up WITH YOU, with what ever crap you want to throw in it. Cost about 60bucks for fuel, some wear and tear on the car. Get to listen to what you want, no crowds.

When I traveled a lot, my threshold was about 12hr drive. More than that, consider flying. Consider... 12hr, I would probably drive.

Also, what does HSR have as advantage over flying for that route?? Riddle me that!! Commercial air travel is roughly 50mpg on a per seat basis (varies a lot). That is pretty hard to beat.

BooooooonDoooogle.
 
How much jet fuel do you think it will take to offset the CO2 and pollution footprint of the infrastructure required to build HSR?
 
From post #42: China has "half of installed capacity from renewables as of 2023". Gots to put a critical eye on this term "installed capacity". Since those sources are by nature periodic (wind and solar), if you want to do a decent analysis, you need to break the sources out by total generation, not installed capacity. Geez.
 

Part and Inventory Search

Sponsor

Back
Top