They sell Jet-A here at the airport. They will put it into boats or cans. Can you run a Diesel on Jet-A?
More Nuclear, Coal or Natural gas power?
- Thread starter ZZman
- Start date
And what are the efficiencies of the various energy sources to charge that Li-Ion battery, including all the efficiencies of voltage conversion and charger losses?
If it’s solar electricity charging that battery, not only will it take forever, you get 75% x 21%, or about 16% overall efficiency… half that of gasoline engines.
Don't beleive it's dyed...there's a slight difference, people who "stole" fuel oil from the power stations usually had issues with lack of lubricity, and sometimes a "mortdant" additive is used on big sites, which boilers do fine on and diesels don't.
Let's do apple to apple comparison.
21% of solar efficiency is never lower than the efficiency of growing biomass to create the oil millions of years ago underground, pumping it out of the ground, hauling it to a refinery, refine, hauling it to the gas station, etc. You will never get 100% of the energy from the sun whether it is solar panel (20%) or growing plants (below 10%). Even compare to sugar cane ethanol you will likely not get above 15% efficiency no matter what, due to biology.
Speed of solar charging is likely nothing if you are on a grid tied solar, or if you have a battery to store the charge and swap in and out of the car.
The efficiency of Li-Ion battery should be compared to fuel cell (which is just a battery replacement, if you are cracking hydrogen with electricity by cracking water, or natural gas being burnt in a combustion engine if you are cracking hydrogen from natural gas). It is actually pretty decent compare to hydrogen fuel cell, and these days is cheaper (fuel cell has precious metal in platinum group, and the storage tank is very expensive and very high pressure), easier (you can charge EV everywhere but hydrogen pumps aren't), and charge fast enough (20 mins fast charging in a pinch, overnight on 220V 30A).
twouvakind
Site Donor 2025
Nuclear
NG
Coal
In that order
NG
Coal
In that order
Nuclear but we have to learn how to build them in less than 10 years and at a reasonable cost. There is some work being done on small scale factory built units which sounds like a reasonable way forward. If they can build reactors for a nuclear sub why not mass produce them for electricity generation use. I'm sure bigger reactors have a theoretical economy of scale but in practice we can't seem to build them at anything less that double or triple the original forecast cost. Whoever comes up with a cheap and reliable factory built unit is going to make a fortune.
After yesterday's weather, I just had to post this: Also of note, all the windmills I saw (except one small one that was clearly overspeeding) were locked down due to high winds. If only we had a source of 24/7/365 clean, reliable power...
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