Typically solar power is dumped onto the wires, for use by factories during the day...... and then returned to homeowners by the Electric company at night
The problem is that netting to grid doesn't scale. Power consumption is higher during the day, but actually peaks between 4-7pm, when many businesses are still operating, but many people are also arriving at home and kicking on the AC. So power demand peaks just as the sun is setting.
There are several solutions: 1. Storage. 2. HVDC long distance transmission, so Arizona sun can power ACs in Florida. 3. Flexible pricing. People will conserve if they save enough. They don't need to run the dryer at 5pm.
If he's got nothing, he should have taken the deal.
If he's got nothing, the deal shouldn't have been offered. "A nominal fine and no admission of guilt" is not appropriate for inexcusable misconduct at this level.
a single device that stores solar energy directly as chemical energy that can be extracted as electricity later.
That is not what the paper says. It clearly states that the solar collector is PV, which produces electricity, not "chemicals".
Once the energy is in the form of electricity, you can use a wire to move it anywhere. So why put the redox battery on an exposed hot roof, rather than a cool garage or closet?
It is not an electric device charging a separate battery.
I don't see anything in TFA or the paper which leads to this conclusion,
the optimistic 25% efficiency of the battery they are proposing.
TFA is written very poorly, but I think they mean the combined efficiency of the panel + battery. So 25% of incident solar energy would end up in the battery (in the best case). That would be very good.
If the 25% is just the battery, then that is horrible, and makes no sense at all.
Yeah I'm struggling to understand the advantage of integrating the storage into the panel.
By putting the battery with the panel, on the roof, it is exposed to weather and temperature fluctuations, so it degrades faster and creates jobs for maintenance workers.
The energy density is 126 Wh/L. So if you need 10 kwhr to make it through the night, that would be about 80 liters or 20 gallons.
Is it Toxic?
A related compound is used as an herbicide (Paraquat).
TFA leaves out the most important point: WTF is the point of integrating the battery and solar panel into a single device? None that I can see. Wouldn't it make far more sense to have two independent devices that can be maintained and/or replaced separately?
So they took two pre-existing ideas, did nothing to improve either, and then combined them in a way that makes no sense.
"no reasonable person would believe anything I promise".
Except plenty of people did believe it, and the stock price went way up. Plenty of shorties lost money based on false information. They have grounds to sue, maybe for billions.
The ball technique would not protect them from human-operated mowers either
Actually, it does, because humans have eyes. They see the hedgehog curl up, and then they avoid it. Nobody wants hedgehog guts splattered across their lawn.
And you're contributing to the increase in tempature.
Nope. AGW is not caused by humans producing heat, but by humans producing gases that increase the retention of heat. So the problem is dH/dt increasing, not H.
I live in California, where 10% of all electricity consumed is used to pump water through aqueducts. So by using less water, I am producing less CO2.
Why don't the hedgehogs run away from the robot lawn mowers?
Darwinian evolution.
For millions of years they have perfected the strategy of rolling into a ball with their quills protruding outward, much like an American porcupine. This works to deter predators, but not lawn mowers.
Behavior can change, but it takes time. For instance, musk ox will form defensive circles to repel wolves, but they have learned to run from humans.
My neighbor has one, and they are slow, with small blades, and little power. The risk is way less than a human controlled powered lawn mower kicking up rocks or debris. I can't imagine it injuring anyone unless they purposely went up to it and stuck their toes into the blades, and that would be difficult since the blades are not exposed.
The low power is not a problem: it can just take longer, since no human time is involved. It will periodically return to the docking station to recharge.
I use a much better solution: I replaced my lawn with gravel, desert shrubs, and cacti. No grass to mow, and a 75% reduction in my water bill.
But three times the lifespan times twice the strength (numbers pulled out of my ass) means it'll sell if it costs no more than six times as much as conventional concrete.
You are not considering secondary effects. Let's say you are constructing a building. If it is twice as strong, you need half as much for the same strength. But if you need half as much on the upper floors, then you need less concrete on the lower floors to support the weight... so you end up using much less than half as much. The reduced weight will also bring savings on the steel rebar and steel frame... but maybe more cost for wind vibration damping.
There are also secondary effects of the longer life. If you are building a bridge, and the concrete is 50% of the cost, then a 3x lifetime increase saves you 6x not 3x (assuming concrete is the critical path item for longevity).
Slashdot Mirror
Or..you know..we could continue to build out nuclear energy.
Nukes are base load, not peakers, so they don't mesh well with renewables.
The demand at 5pm can be three times the demand at 3am. Nukes don't produce that kind of variable output.
a generating station the size of a small office building can power an entire city.
Bullcrap. There is a lot more to a power station than just the reactor.
There are a number of people who will contract the flu virus but never show any symptoms. These people will still spread the flu
Flu spreads by droplets that are coughed or sneezed out. If you don't have coughing or sneezing symptoms, you aren't going to be an effective vector.
Typically solar power is dumped onto the wires, for use by factories during the day...... and then returned to homeowners by the Electric company at night
The problem is that netting to grid doesn't scale. Power consumption is higher during the day, but actually peaks between 4-7pm, when many businesses are still operating, but many people are also arriving at home and kicking on the AC. So power demand peaks just as the sun is setting.
There are several solutions:
1. Storage.
2. HVDC long distance transmission, so Arizona sun can power ACs in Florida.
3. Flexible pricing. People will conserve if they save enough. They don't need to run the dryer at 5pm.
We will likely need all of the above.
The feds say different.
First responders to a medical emergency are not "feds".
I can only surmise that the reason the watch doesn't ask for voice confirmation before dialing is, they assume the wearer is unconscious.
According to TFA, it does ask for confirmation. It dials if there is no response.
criminal charges for a joint spotted on their table ...
I live in California. Pot is legal here.
Or just do what Oregon has done, and use mail-in ballots for everyone.
In California, voting by mail is optional, but about 70% of voters do so.
Any real government would reschedule the election in this scenario.
Do you mean like how the 2000 Florida vote was redone because off the clearly defective ballots?
Can you provide an example of an American election ever being redone because of weather, or traffic conditions?
Also, what is a "real" government?
If he's got nothing, he should have taken the deal.
If he's got nothing, the deal shouldn't have been offered. "A nominal fine and no admission of guilt" is not appropriate for inexcusable misconduct at this level.
So would it be okay for roommates, or renters to share the plan?
Yes, as long as they reside at the same address.
Or one night stands?
Yes, but you have to cancel in the morning.
a single device that stores solar energy directly as chemical energy that can be extracted as electricity later.
That is not what the paper says. It clearly states that the solar collector is PV, which produces electricity, not "chemicals".
Once the energy is in the form of electricity, you can use a wire to move it anywhere. So why put the redox battery on an exposed hot roof, rather than a cool garage or closet?
It is not an electric device charging a separate battery.
I don't see anything in TFA or the paper which leads to this conclusion,
about 2 liters of charged liquid battery per hour of driving should be enough.
No. A Telsa uses about 0.3 kwhr per mile. So at 130 whr/L you would need 2 liters per MILE not per hour.
That is about a 1/4 the volumetric energy density of lithium batteries.
MVCl2 flow batteries make no sense for vehicles.
the optimistic 25% efficiency of the battery they are proposing.
TFA is written very poorly, but I think they mean the combined efficiency of the panel + battery. So 25% of incident solar energy would end up in the battery (in the best case). That would be very good.
If the 25% is just the battery, then that is horrible, and makes no sense at all.
Yeah I'm struggling to understand the advantage of integrating the storage into the panel.
By putting the battery with the panel, on the roof, it is exposed to weather and temperature fluctuations, so it degrades faster and creates jobs for maintenance workers.
My first thought was, what is this "liquid"?
It is methyl viologen di-chloride, an organic compound.
How many gallons would it need to run a house?
The energy density is 126 Wh/L. So if you need 10 kwhr to make it through the night, that would be about 80 liters or 20 gallons.
Is it Toxic?
A related compound is used as an herbicide (Paraquat).
TFA leaves out the most important point: WTF is the point of integrating the battery and solar panel into a single device? None that I can see. Wouldn't it make far more sense to have two independent devices that can be maintained and/or replaced separately?
So they took two pre-existing ideas, did nothing to improve either, and then combined them in a way that makes no sense.
These are the same ones who reported every piece of bad news about Tesla they could find, for personal gain.
So? As long as they weren't lying, there is nothing illegal about that, nor should there be.
"no reasonable person would believe anything I promise".
Except plenty of people did believe it, and the stock price went way up. Plenty of shorties lost money based on false information. They have grounds to sue, maybe for billions.
if you keep in decent shape, and practice basic hygiene ...
So ... victim blaming?
...you can easily approach women, GOOD looking women and get laid.
You need to understand Stacy, Becky, and Chad. I find Becky more appealing, but the incels want Stacy. Unfortunately, Chad is a
cockblocker.
Interesting.....I've never heard about this before.
Read about the Toronto van attack and the UCSB incel murders. In both cases, incels murdered multiple women ... because women in general weren't having sex with them.
Incelism is likely biggest in Japan, where millions of men are not having sex, or even relationships, and their race is asymptotically dwindling away.
what's so hard about getting laid? Geez....
It is not so hard if you are willing to lower your standards. But incels want to have sex with supermodels.
The ball technique would not protect them from human-operated mowers either
Actually, it does, because humans have eyes. They see the hedgehog curl up, and then they avoid it. Nobody wants hedgehog guts splattered across their lawn.
And you're contributing to the increase in tempature.
Nope. AGW is not caused by humans producing heat, but by humans producing gases that increase the retention of heat. So the problem is dH/dt increasing, not H.
I live in California, where 10% of all electricity consumed is used to pump water through aqueducts. So by using less water, I am producing less CO2.
Why don't the hedgehogs run away from the robot lawn mowers?
Darwinian evolution.
For millions of years they have perfected the strategy of rolling into a ball with their quills protruding outward, much like an American porcupine. This works to deter predators, but not lawn mowers.
Behavior can change, but it takes time. For instance, musk ox will form defensive circles to repel wolves, but they have learned to run from humans.
My neighbor has one, and they are slow, with small blades, and little power. The risk is way less than a human controlled powered lawn mower kicking up rocks or debris. I can't imagine it injuring anyone unless they purposely went up to it and stuck their toes into the blades, and that would be difficult since the blades are not exposed.
The low power is not a problem: it can just take longer, since no human time is involved. It will periodically return to the docking station to recharge.
I use a much better solution: I replaced my lawn with gravel, desert shrubs, and cacti. No grass to mow, and a 75% reduction in my water bill.
But three times the lifespan times twice the strength (numbers pulled out of my ass) means it'll sell if it costs no more than six times as much as conventional concrete.
You are not considering secondary effects. Let's say you are constructing a building. If it is twice as strong, you need half as much for the same strength. But if you need half as much on the upper floors, then you need less concrete on the lower floors to support the weight ... so you end up using much less than half as much. The reduced weight will also bring savings on the steel rebar and steel frame ... but maybe more cost for wind vibration damping.
There are also secondary effects of the longer life. If you are building a bridge, and the concrete is 50% of the cost, then a 3x lifetime increase saves you 6x not 3x (assuming concrete is the critical path item for longevity).
how will they deal with gamma rays and bombardment by meteors?
A tunnel would be an obvious solution.
So, to be clear, you allege that Gizmodo also lied about Amazon's statement?
Probably not an outright lie, but Gizmodo is clearly trying to twist the facts. Why else would they omit a link to the video?
They want to cherry pick, and they don't want you to see the cherries that weren't picked.
Amazon admits that the video exists.
Then where is it?