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re: where will we get the juice for all these EVs?
Posted on 6/13/21 at 9:46 pm to tiger2180
Posted on 6/13/21 at 9:46 pm to tiger2180
quote:
So the grid connected to your home is required to power the batteries for EV’s ,but EV’s will power your home for days? How? I’m confused!
It’s called an energy storage device. It stores energy for later use. You can do the same thing with batteries on your house, but the EV just gives you the ability to do either.
1
Posted on 6/13/21 at 9:47 pm to BuckyCheese
quote:
Some really large excavators used in mines are electric iirc.
Those are rare compared to diesel powered excavators. The electrics are gargantuan machines used only in the biggest mines. They’re not practical in most mining applications.
Posted on 6/13/21 at 9:52 pm to tiger2180
quote:Car is charged, grid goes down. That's it.
So the grid connected to your home is required to power the batteries for EV’s ,but EV’s will power your home for days? How? I’m confused
Posted on 6/13/21 at 9:52 pm to Darth_Vader
quote:
Those are rare compared to diesel powered excavators. The electrics are gargantuan machines used only in the biggest mines. They’re not practical in most mining applications.
That's why I qualified them by saying "really large in mines". They are likely connected directly to a substation. They don't run off batteries.
Electric powered excavators of the size used on typical construction projects would not be very practical nor user friendly.
Posted on 6/13/21 at 9:57 pm to billjamin
quote:
It’s called an energy storage device. It stores energy for later use. You can do the same thing with batteries on your house, but the EV just gives you the ability to do either.
So the battery capacity of an EV that I can’t charge will run my all electric home(ac/ heat, water heater, microwave, tv, computer, phone Chargers) for several days?
Posted on 6/13/21 at 9:59 pm to BuckyCheese
quote:
Electric powered excavators of the size used on typical construction projects would not be very practical nor user friendly.
True. Ironically though, there is a type of electric excavator starting to get traction, namely the >3 ton mini-HEX. Some of the smallest of these little excavators can be run via a small Diesel engine or hooked up to a power source similar in fashion to the massive mining shovels.
Posted on 6/13/21 at 10:00 pm to udtiger
quote:
Radio on? Maybe 20 watts
Windshield wipers? Negligible
Bluetooth? Laughably negligible
Navigation? Negligible
Dashboard display? Negligible
Basically think about how long your ICE car will run all that stuff off its little battery with the engine off, and then multiply by roughly 100.
quote:This is the only major power draw, dwarfing all the others you mentioned combined by about 100 times.
All that PLUS A/C...
quote:Not quite. A Tesla, for example, requires about 2kw to run the AC. That means it will lose maybe 5-10 miles of range per hour running the AC constantly. For comparison, an ICE might burn 1/4 to 1/2 gallon of fuel per hour idling with the AC on (obviously depends on engine). That means it will lose a similar 5-10 miles of range per hour.
You'll have a line of fricking paperweights littering the highway.
Posted on 6/13/21 at 10:01 pm to tiger2180
quote:
So the battery capacity of an EV that I can’t charge will run my all electric home(ac/ heat, water heater, microwave, tv, computer, phone Chargers) for several days?
I don’t even know why I respond to this level of stupidity. Don’t worry about it. Just ignore it, there’s nothing happening at all.
Posted on 6/13/21 at 10:03 pm to tiger2180
quote:
So the battery capacity of an EV that I can’t charge will run my all electric home(ac/ heat, water heater, microwave, tv, computer, phone Chargers) for several days?
Posted on 6/13/21 at 10:06 pm to tiger2180
quote:
So the grid connected to your home is required to power the batteries for EV’s ,but EV’s will power your home for days? How? I’m confused!
Not sure if you’re being facetious but yes, a fully charged 75+ kWh battery (I believe the largest current Tesla offering is 100 kWh) will power your entire home for days.
This is why grid infrastructure and residential wiring are such a big talking point regarding EV’s - when you install a 240V, 40A charger in your garage it immediately becomes by far the largest electrical load in your house when it’s charging. In fact, it’s likely using more power than everything else in your house combined.
This is also why these batteries represent a big opportunity for improvement of our electrical distribution methods. The ability to store that amount of energy efficiently could theoretically take a huge strain off of the grid during high demand. Or it could allow power plants to constantly run at peak efficiency rather than constantly cycling up and down based on load.
The caveat, of course, is that in reality these batteries aren’t just plugged in ready to accept a charge at all times. If everyone drives an EV and that’s the only high-capacity battery they own, then the electrical demand will more than double at night when the EV’s are plugged in and recharging.
So it’s a double-edged sword. Long-term I think you would see systems developed with two batteries - one permanently installed at the house, taking a slow-ish charge during low-demand hours. The other is the car battery, which would be charged directly from the permanent battery rather than the grid. But you lose efficiency that way and it obviously requires more batteries (and more lithium) so who knows.
Posted on 6/13/21 at 10:09 pm to tiger2180
quote:When you have power, your car will charge. When you don't have power, your car can run your house with its stored energy. That's what batteries do. I don't know what's so confusing.
So the battery capacity of an EV that I can’t charge will run my all electric home(ac/ heat, water heater, microwave, tv, computer, phone Chargers) for several days?
Posted on 6/13/21 at 10:11 pm to Darth_Vader
Magic
Posted on 6/13/21 at 10:12 pm to Darth_Vader
I hate the power company, so if EVs are the future I’ll look into putting solar panels up at my residence.
Posted on 6/13/21 at 10:14 pm to Korkstand
The smart folks will charge their cars at work then power the house off the car.
Posted on 6/13/21 at 10:15 pm to Darth_Vader
quote:
2. A standard EVs range on a full charge is 250 miles
Sounds like road trips need serious planning.
Posted on 6/13/21 at 10:15 pm to Darth_Vader
quote:
Getting approval for new power plants, is next to impossible. Environmentalists fight new power plants with endless lawsuits. Will there be the political will from the left to allow the construction of roughly 150 to 250 new power plants nationwide?
No it isn’t, Paradise CC came on in 2017 and Allen CC was in 2018. Our region will be shutting down all our coal over the next decade, so they will be building to replace along with investing more in renewables. Small modular reactors panning out would be nice. They will find a way to meet demand as more people transition to electric vehicles.
This post was edited on 6/13/21 at 10:17 pm
Posted on 6/13/21 at 10:16 pm to BuckyCheese
quote:
The smart folks will charge their cars at work then power the house off the car.
That's the new taking a shite on company time.
This post was edited on 6/13/21 at 10:17 pm
Posted on 6/13/21 at 10:16 pm to Korkstand
quote:
When you have power, your car will charge. When you don't have power, your car can run your house with its stored energy. That's what batteries do. I don't know what's so confusing.
Nothing unless my EV needs charging when I arrive home and then a multiple day power outage occurs and i don’t have solar power or a generator.
Posted on 6/13/21 at 10:24 pm to tiger2180
quote:A typical day's work for a vehicle is roughly 50 miles, so "needing" a charge when you get home should be a rarity. If you would routinely use nearly a full charge in a day, you probably shouldn't do something stupid like buy an EV right now. So if that 1%er of a day comes around when you burn a full charge at the same time that that 1%er of a day that starts a multi-day power outage, well then I guess you're just shite out of luck that 0.01%er of a day that comes around every 3 decades.
Nothing unless my EV needs charging when I arrive home and then a multiple day power outage occurs and i don’t have solar power or a generator.
Posted on 6/13/21 at 10:29 pm to tiger2180
quote:
then a multiple day power outage occurs and i don’t have solar power or a generator.
Lets say this were to happen. You think you can just mosey on down to the gas station and grab a couple gallons? People were buying that shite up for no reason just a couple weeks ago.
You're creating ridiculous hypotheticals like out traditional systems are perfect
This post was edited on 6/13/21 at 10:30 pm
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