bcheary Loc: Jacksonville, FL

https://www.youtube.com/watch?v=R44denxWmzE&t=556s

Personally, I believe that hydrogen is the way to go.

burkphoto Loc: High Point, NC

It's gonna take a LOT of different technologies to get to the future. We drive four hybrids in our family. Using them doubled our family average gas mileage and cut our long term total cost of car ownership almost in half. They work for us. But my wife's thinking solar-powered battery electric, because her employer just installed solar over all of their rooftops during a plant expansion project.

I'd love to see Hydrogen fuel cells take off, but the overall efficiency isn't really there yet, and it will take years to build all the filling stations we need.

Every technology from gasoline internal combustion engines to battery electric has a long list of advantages and disadvantages. Call my kids in 40 years and ask them, "What won?" I'll bet it's something we haven't seen yet.

The James Webb Space Telescope and CERN are re-shaping what physicists and mathematicians theorize about how the universe works. I wouldn't be surprised if half our assumptions about math, physics, and chemistry are re-directed in the coming decades, and that THAT leads to new sources of energy.

Dan' de Bourgogne

Me too!

tgreenhaw

The problem with hydrogen as a passenger vehicle fuel is distribution.

Wind and solar are cheap and cost effective and we already have a distribution system in place although it does need updating.

Japan is different than the US as it is smaller, but even they never solved the distribution challenges even after a huge effort.

kpmac Loc: Ragley, La

I'll use gasoline until they take it away from me by longer refining it.

bcheary Loc: Jacksonville, FL

I came across this: https://www.energy.gov/eere/fuelcells/hydrogen-fuel-basics

bcheary Loc: Jacksonville, FL

bcheary Loc: Jacksonville, FL

bcheary Loc: Jacksonville, FL

DWU2 Loc: Phoenix Arizona area

Hydrogen is da bomb!

bcheary Loc: Jacksonville, FL

burkphoto Loc: High Point, NC

Google 'Csar Bomba' and you will be horrified.

bcheary Loc: Jacksonville, FL

A long time ago and different technology!

DirtFarmer Loc: Escaped from the NYC area, back to MA

F****l f**ls will be around for a while.

Hydrogen is certainly a contender for future energy but it takes energy to produce Hydrogen so I consider Hydrogen more of a storage medium. Solar is probably a good contender for producing Hydrogen as long as it can be done near a good water source. And of course if it's near a good water source there will be clouds. Hydrogen does have storage issues. Hydrogen embrittles steel and it has to be stored at high pressure so containers have to be made from something other than steel. You definitely don't want your high pressure fuel tank to be brittle for a moving vehicle. You can store Hydrogen at low temperature to get around the high pressure requirement but if I recall correctly the sea level pressure temperature of liquid Hydrogen is 23K. Kind of chilly. Liquid Nitrogen is 77K.

I suspect it will be greener to use Hydrogen in fuel cells to produce electricity to run your vehicle. Hydrogen certainly burns well, but it needs oxygen, and rather than have tanks of both Hydrogen and Oxygen in your vehicle, air will probably be used for an internal combustion engine. That means oxides of Nitrogen will also be produced.

I am not impressed with the current Electric Vehicles. They lack range and do not recharge quickly, reducing their utility for long trips. Better battery performance is needed, in charging speed, weight, and energy storage. Current EVs are OK for commuting, but not for working vehicles that require more power. E.g. tractors and snowplows.

Even if f****l f**ls are not used to produce energy, they are used for a LOT of other things: medicines, textiles, fertilizer, plastic, etc. Before f****l f**ls get dangerously low we have to find ways to synthesize all those other things as well as change energy sources.

burkphoto Loc: High Point, NC

There are enough engineer-entrepreneurs — and venture capitalists throwing money at them — to produce some innovative solutions. The best paradigm shifts seem to come from outside of existing industries, or just far enough outside existing markets to see a new solution.

The key is to do something that is renewable, cheap, clean, efficient. We went to the moon and we're going back. We can find better ways to produce and store and t***sport energy.