@KellyJay
Just look at the KW/Hr ratings of the batteries.
A good average for houses is 2000 watts 24 hours a day, maybe less but running with 2 Kw for one day, is 48 KW/Hrs of energy.
Now in solar power, if you want 48 Kw hours, you have to generate three times that, so 6000 watts for 8 hours happens to be 48 KW hours because you only get 8 hours or so of solar energy available.
So if the average is 40 Kw hour EV battery, that is 2000 watts running for 20 hours.
Some EV batteries have a lot more than that but running with that average number, if you pump 2000 watts into that 40 Kw hour battery, it takes 20 hours to get there.
If you pump 4000 watts, like 200 volts at 20 amps, which is not standard 240 volt power but for illustration, that would still take 10 hours to fully charge that 40 KW hour battery.
So if you had an 8000 watt supply, say 200 volts at 40 amps, that gets you charged to max in 5 hours.
So double that again, 16000 watts, 200 volts at 80 amps it still takes 2.5 hours
So double again, 32,000 watt supply, 200 volts at 160 amps it still takes 1 1/4 hours to fill that battery.
So a 64,000 watt supply, 200 volts at 320 amps it still takes like 45 minutes to fill that battery.
Now they really use more like 800 volts so that would be 80 amps but it still takes 45 minutes even at that since it is still 64,000 watts.
If you want to get it charged in 22 minutes, that would be 128,000 watts or 800 volts at 160 amps and even at that it would take some 3 times longer to fill that battery than filling up your gas tank with fuel.
So a house running 4000 watts which is roughly all you can expect out of a house, 240 volt charger, it is less than ten percent of a real EV charge station. Not very good.
NOBODY will be getting anywhere near even 32,000 watts from a home, that would be WAY over the current supplied by most any electric company for home use.
@sonhouse saidRoughly in a month, you could have 3 drivers living in one house, but if all three of them drove different electric cars that required charging, in one month best and worst case what would that mean to the power grid? Would this be a good idea if this is pushed in California which already has rolling blackouts due to power concerns? This isn't a political ideology question, it's just math when you can compare that to three gas-powered cars in one home.
@KellyJay
Just look at the KW/Hr ratings of the batteries.
A good average for houses is 2000 watts 24 hours a day, maybe less but running with 2 Kw for one day, is 48 KW/Hrs of energy.
Now in solar power, if you want 48 Kw hours, you have to generate three times that, so 6000 watts for 8 hours happens to be 48 KW hours because you only get 8 hours or so of solar energy a ...[text shortened]... from a home, that would be WAY over the current supplied by most any electric company for home use.
@KellyJay
That is the soft underbelly of EV's. If you want your 40Kw hour battery charged in a decent amount of time you have to pump in many kilowatts which comes from the grid, now the total amount of energy consumed would be filling a 40 Kw hour battery so the equivalent of 40,000 watts used for one hour or 4000 watts used for ten hours and so forth, but the grid can't give EVERYONE 600,000 watts at one time, the grid would melt down so a new electrical infrastructure has to be built to accommodate all that extra power flowing from the grid to all those chargers pushing hundreds of thousands of watts.
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@sonhouse saidSounds “a bit” like something else.🤔👍
@KellyJay
That is the soft underbelly of EV's. If you want your 40Kw hour battery charged in a decent amount of time you have to pump in many kilowatts which comes from the grid, now the total amount of energy consumed would be filling a 40 Kw hour battery so the equivalent of 40,000 watts used for one hour or 4000 watts used for ten hours and so forth, but the grid can't g ...[text shortened]... that extra power flowing from the grid to all those chargers pushing hundreds of thousands of watts.
@Great-Big-Stees
It means rebuilding our power infrastructure, a multi trillion dollar enterprise.
For instance, the west, Nevada, Arizona, New Mexico has a lot of desert land that could be and is being plastered with solar cells and wind generators. The problem is getting that power to the rest of the country, where the power lines, the major ones, are mainly in the perifery of the US, way north, East, south and west with not much in the center of the US which would be where the main solar power would and is coming from and that is literally a trillion dollar project just to carry the available power to the west, north and East.
@sonhouse saidI hope windmills can accommodate that, or solar, maybe we should have hamster farms? 🤔
@KellyJay
That is the soft underbelly of EV's. If you want your 40Kw hour battery charged in a decent amount of time you have to pump in many kilowatts which comes from the grid, now the total amount of energy consumed would be filling a 40 Kw hour battery so the equivalent of 40,000 watts used for one hour or 4000 watts used for ten hours and so forth, but the grid can't g ...[text shortened]... that extra power flowing from the grid to all those chargers pushing hundreds of thousands of watts.
@KellyJay
It sounded like you were poo pooing the idea of solar in the deserts and didn't understand there is little in the way of electrical infrastructure in terms of those million volt high power lines not being present in the desert where it makes most sense to have solar.
Wind is another issue, I don't think deserts have the highest winds year around but obviously deserts are a great place to harvest solar power.
There is another technology that might one day give us viable energy, still solar but this tech gets it from space, a satellite gathering solar energy converted to microwave radio beams sending that energy to Earth but so far it is just small demo versions.
There is some trepidation about the idea such powerful microwave beams could be hacked to use as military weapons if the beams are running gigawatts or RF energy.
@sonhouse saidSome of these alternative power sources that are supposed to be environmentally friendly also have downsides, The question is, can a lot of energy be generated in the desert with solar, enough and consistently? Wind, that is a joke due to all the issues that come with those.
@KellyJay
It sounded like you were poo pooing the idea of solar in the deserts and didn't understand there is little in the way of electrical infrastructure in terms of those million volt high power lines not being present in the desert where it makes most sense to have solar.
Wind is another issue, I don't think deserts have the highest winds year around but obviously des ...[text shortened]... ve beams could be hacked to use as military weapons if the beams are running gigawatts or RF energy.
@KellyJay
You can't use common sense to figure out the desert is a good place to put solar cells? The only downside is making sure those cells and take some 150 degrees they would get to in extreme heat days, hotter than the air around it because it is in fact absorbing and converting light to energy and that only 25% or so so 75% is heat so they will get hotter than the air.
But like I said, suppose some super rich dude, a Jeff Bezos type, makes a solar array generating 3 GIGAwatts, enough with battery storage to generate one full gigawatt of energy 24/7 come hell or high water. But suppose he forgets about the part there are no transmission lines in the area that are rated at 1000 megawatts down a wire, because those cells are say in the middle of New Mexico and those high power lines are a thousand miles north. NOW WHAT?
Now we are into the sticky part, what would he do? Charge up a giga watt battery and run it on a railroad car to a power distribution center?
That battery would maybe only be 50 feet wide and 1 half mile long....
So the next thing he thinks about, well, lets build some high power transmission lines about a thousand miles of it to the nearest power hub to put his power into the grid.
Then he hears the price, which may be equal or more than the thousand acres he planted cells. Oops.
@sonhouse saidAre you always insulting to everyone you talk too?
@KellyJay
You can't use common sense to figure out the desert is a good place to put solar cells? The only downside is making sure those cells and take some 150 degrees they would get to in extreme heat days, hotter than the air around it because it is in fact absorbing and converting light to energy and that only 25% or so so 75% is heat so they will get hotter than the ai ...[text shortened]...
Then he hears the price, which may be equal or more than the thousand acres he planted cells. Oops.