Coal demand for electricity during polar vortex

 
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oros35
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Post by oros35 » Fri. Feb. 15, 2019 1:24 pm

I agree storage is a key to renewable success. But in keeping with the green theme, how much toxic material and waste are being produced with these batteries? What will be done with them to protect the public?

I admit, I know little about batteries, but all the warnings on my lithium batteries brings up a concern. What will be the impact of producing billions of large capacity batteries for home or commercial storage? It is really a concern?


 
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Post by David... » Fri. Feb. 15, 2019 1:33 pm

I would expect it would be worth while to recycle the batteries just like lead acid ones.

David

 
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Post by KLook » Fri. Feb. 15, 2019 5:38 pm

What do you suppose they will use to heat the buildings the batteries are in? How about those winter temps BB?

Kevin

 
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Post by BigBarney » Mon. Feb. 18, 2019 4:12 pm

If you understand battery chemistry you know that an insulated

battery is self heating to a level where it can be recharged to full

output , all you need is a load. This is why Tesla's and other electric

vehicles have a lead acid battery to power the system if cold

temperatures are reached the lead acid battery charging can put

a load on the propulsion battery to get enough heat to be able to

accept a charge.Battery will heat then from current draw..

So the building needs no heat... Except the lithium ion battery.

BigBarney

 
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Post by KLook » Mon. Feb. 18, 2019 9:18 pm

You deflected and gave an obtuse answer. If any heat is required, it must be generated by something. And it ain't free.

Kevin

 
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Post by BigBarney » Mon. Feb. 18, 2019 10:15 pm

The batteries in the car can preheat themselves so they can be fast charged...

My Bolt EV loses about 40% in <0* F....Still enough range ~160 miles..

How Often do you drive over 160 miles in a day???? The big avantage is that

you have that mileage every morning ~ 240 miles in summer weather.

Car can be pre heated or cooled from anywhere on the planet from the

remote , even get the tire pressure and your report card on how you did

with braking , fast acceleration , and energy conservation . Can Also be

notified if there is a system problem with the vehicle , so you can get it

serviced before your stranded... Even open the trunk for UPS package

delivery anywhere .

BigBarney

 
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Post by David... » Tue. Feb. 19, 2019 3:17 pm

The batteries would probably be heated be electricity. Is this a problem?

David


 
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Post by KLook » Tue. Feb. 19, 2019 5:18 pm

The batteries would probably be heated be electricity. Is this a problem?
You cant be serious? There is not enough life in the batteries at present for most people and you want to use some to heat the car in zero weather? The prophet BB says 160 miles is enough, but I drive 75 right now in a truck and need the payload. His Bolt woldn't cut it.

Kevin

And neither will a truck with a big enough battery to do it, because it will reduce the payload.

 
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Post by David... » Tue. Feb. 19, 2019 9:04 pm

I'm sorry I thought when you asked how the batteries in a building would be heated that's what you were talking about. I have no doubt there will never be an electric vehicle that that meet your needs. A Chevy Bolt would work for me. If a battery could power my oil truck for 125 miles I would be satisfied.

David

 
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Post by KLook » Tue. Feb. 19, 2019 9:11 pm

Never mind.......

 
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Post by BigBarney » Wed. Feb. 20, 2019 4:05 pm

Batteries in an EV cannot now be charged when below

32* F so they have a preheat cycle in cold weather before

you charge.

But if you just drove the vehicle the batteries have already

heated up from the internal resistance so you can readily

high speed charge .

Use the average auto use per day of <40 miles and 99%

of all use is switched to EV's . Look at the savings you have

Car @60 KWHr battery and uses 80% till recharge so 48KW are

available and at 2.5 miles per KW = 120 miles and @$0.12

kWHr = $ 5.76 so $ 0.048 per mile and equal to about 56 miles

per gallon of $2.69 gallon gasoline. And this is under extreme

winter conditions. In summer weather it would be about 40% more

efficient .

BigBarney





BigBarney

 
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Post by Bubbalowe » Thu. Feb. 21, 2019 8:13 am

My Dad purchased a GE Elec-Trak in the early 70's and it was a great lawn tractor with electric attachments.. The batteries faded after several years and would need replaced so eventually Dad bought Mom a new Craftsman to cut grass. Batteries/ technology have come far in half a century, not the same game today.

 
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Post by KLook » Thu. Feb. 21, 2019 8:04 pm

And still not the same as hitting the start switch on a 24 hp gasoline engine......

Kevin

 
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Post by Bubbalowe » Fri. Feb. 22, 2019 9:33 am

KLook wrote:
Thu. Feb. 21, 2019 8:04 pm
And still not the same as hitting the start switch on a 24 hp gasoline engine......

Kevin
Correct. Torque from electric motors is greater.

 
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Post by KLook » Fri. Feb. 22, 2019 10:28 pm

Correct. Torque from electric motors is greater.

Until the battery runs out or just gets old.......

Kevin


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