Biden energy secretary doubles down on electrifying US military's vehicle fleet by 2030:

Charging tech is settled. There are no technical advances that will change it. If you have a 1000 kWh battery and a 100KW charger it takes 10 hours to charge it, period. Kinda like 2 + 2 = 4 is not subject to technology advances. (This must really be boring to you....... science and technology and all.)

 

No, but you motivated me to. I assumed a 10,000 kWh battery for a tank (40 times the largest EV battery today) and I have no idea if that is reasonable, but it is comparable. Using the top volumetric efficiency today of 500Wh/liter (which is improving all the time) this battery would take up 20% of the total volume of a M! Abrams tank and about 15 times the volume of its current engine. It would also weigh 60 tons (which probably indicates my assumed 10,000kWH is way off.) The current Abrams tank engine weighs a little over 1 ton, less than the weight of the current Hummer's 210kWH battery (3000lbs). In any case it seems the battery would not only not fit but it would take all the battery's energy just to move the battery!

 

Thanks for taking the time to research this. Too bad the Biden administration won't.

 

They probably can't and certainly don't want to. Facts always get in the way of a ideologue's agenda

 

I wouldn't say its "settled". Its just the best we can do at this point in our technological capabilities. I'd imagine that if we ever hit stage 1 on the Kardashev Scale we could be charging things faster than what you say here.

 

I've seen command posts use battery and solar power, at FT Monmouth 12 yrs ago. The fact that there is another push for other electric equipment is part of their ongoing upgrades,

 

Only with a larger generator. If you have a 1000kWh battery to charge and a generator capable of exactly 100Kilowatts it will tale you 10 hours to fully charge your battery -- not 9 hrs-59min or 10hrs-1min, but 10 hrs. And there is no, as in none, zero, zip, zilch, nada, possible advances in technology that will ever alter that. Like how many gallons of water does it take to fill a 5 gal pail? Ans - 5 gallons. There is no remotely possible technical advances that will allow you to fill your 5 gallon pail with only 4 gallons. It'll never ever happen.

 

Hit a nerve did I

BUT hey, don't you worry, you'll get there eventually too, I talked to the lord and he promises it'll happen..

Thoughts and prayers to moms and dads too!

 

China probably just ordered Oodles of EMP's hearing this.

 

Never eh? Lol

there are a lot of variables that factor into charge time.

 

It’s hard to say which one of Biden’s cabinet is the worst. All of them say they don’t know what a women is, which has to a form of mental illness. Still Jennifer Granholm has to be among the worst. When it comes to energy policy, she talks like moron.

In the military, there are huge tanks that are rated as “gallons of fuel per mile” than “miles per gallon.” How far does she think one of these vehicles is going to go running solely on electricity? How many charging stations are there on the battlefield? How long do you think the electrical generating facilities are going to last if the enemy knows that they are sources of power for all military vehicles? How about what happens to the power lines? Taking out a wind mill farm or a field full of solar panels would be quite easy.

Does Ms. Granholm care about the lives of our military who fight to keep us safe? Apparently those lives are less important than her obsession with the Green New Deal.

Yep, Jennifer Granholm is a moron. She is perhaps the biggest fool of all because she has stuck her ignorant nose where it does not belong, in the running of the military,

 

Uh huh.

But there are real challenges to electrification and hybridization of the military’s ground vehicles. Batteries are obviously a critical component, and they are overwhelmingly manufactured outside the United States and rely on lithium, cobalt and other raw materials that are also largely sourced and refined outside the United States. This creates a weak and brittle supply chain in peacetime and could cut off the defense industrial base from critical supplies completely in a major conflict. Increasing production of consumer electric vehicles will reinforce the critical battery sector but could also compete with production for the military. Several new domestic battery manufacturing plants are projected to open over the next few years, which will be critical for supporting domestic electrification. Similarly, expanding sources of lithium and other key materials are crucial for supporting the electrification of the military’s vehicles. The government needs to aggressively support these two essential industries to make electrification viable for the military.

Battery transport safety is another risk of electric vehicles that needs to be addressed. All services, but particularly the Army and Marines, transport large numbers of tactical vehicles by ship, and even some through airlift. Battery fires add new risks to that movement. However, these ships already transport even more dangerous cargoes like munitions and jet fuel—so establishing safety protocols for vehicle batteries is well within the realm of possible. The Navy has already established a dedicated battery safety office to meet this need.

And nothing here addresses the obvious questions:
-How do you charge these vehicles in the field?
-How do you charge them 200km from their start lines?
-How much does 500gal of diesel weigh compared to a 8,000kw battery?

 

Wut....?

 

Correct.
The rate of charge is ultimately limited by the charging source -- no matter how awesome your battery is, a 1000kW generator (powered by diesel) will take at least 8 hours to charge an 8,000kWh battery.

Democrats
Dogma > basic physics

 

Reality means nothing to these people
In the field, the Abrams burns 500gal diesel in 8 hours. That's about 8,000kWh.
The Tesla X had a 100kWh battery, it weighs ~1150lbs.
You need 80 of them for the Abrams.

And you need to charge it. In all conditions.

 

Here is some more for you.
https://www.defensenews.com/land/20...-power-electric-combat-vehicles-in-the-field/

I have seen command posts powered by all electric. You may want to review, the army uses a brigade combat team that can be semi autonomous while on a mission.

The us military has always pushed technology.

 

Each tank company followed by a mile long convoy of diesel generator trucks followed by another convoy carrying spare parts. The enmy will shoot up the diesel generator trucks ... a lot easier than killing a tank. And when they are all gone we'll just use the generator trucks we capture from an electric powered enemy force.

 

News for you - she wasn’t talking about electrifying every vehicle. She said “climate friendly”.

She was talking about using biodiesel from Iowa instead of petroleum diesel.

 

You can't expect some people to actually read the links they provide that even mentions the quoted words of Granholm " homegrown" and "non-tactical vehicle fleet" but choose to believe the headlines and bias interpretation, aimed to please their supporters as facts, and then go on some partisan rant

 

Some people want to be angry.

So they make up lies to be angry about.

 

Defending emotional driven with emotional drivel.. Shocking!

You have people discussing the issues with said "policies" and you have the above.. Let me guess which one you think is the educated stance /facepalm

 

See my first post. People are angry about the idea of electrifying Abrams tanks when that isn’t what’s being proposed.

So go ahead and be angry about that if you want, but know that it’s because you WANT to be angry. Not because you have anything to be angry about.

 

Has someone told you that biodiesel does not emit carbon dioxide??

 

While I think it's absolutely stupid to go electric with the military, this is not true.

https://www.theguardian.com/environ...es-race-ahead-with-five-minute-charging-times

They are close to mass production on batteries with a much lower charging time.

 

Yes it is true. They are charging the batteries with much larger chargers. If you have a 1000kWh battery and charge it with a 1000kW charger then it takes only one hour instead of the 10 hours in my example with a 100kW charger. There is technology improvements that allow this because batteries do not like being charged at high rates. If you continually charge a current lithium battery at 10 times the normal rate (with a ten times larger charger) you'll reduce the battery life by maybe 50%. -- called the C-rate.