Good presentation of the big problem with wind and solar for electricity -- they're not predictable over time. For anything close to 100% renewables this has to be addressed. They're right in saying Li-ion is not going to cut it for a number of reasons. Will the solution proposed actually do the job? No idea here.

You mean a Brahma day? Close. It's around a 311+ Trillion year cycle, and hardly resembles astrophysics beyond the one hypothesis that the universe "bounces" in and out of existence, expanding then collapsing then expanding....forever....but most hypotheses disagree. Some claim the universe will not collapse but expand eternally, ending in a big freeze, some suggest collapse in 5 billion years from now. Until we understand dark matter/energy, we are in the dark on this question.

The lifespan of Brahma (creator god) lasts for 100 of his years. His 12-hour day or Kalpa (a.k.a. day of Brahma) is followed by a 12-hour night or Pralaya (a.k.a. night of Brahma) of equal length. At the start of his days, he is re-born and creates the planets and the first living entities. At the end of his days, he and his creations are unmanifest (partial dissolution). His 100-year life is called a Mahā-Kalpa, which is followed by a Mahā-Pralaya (full dissolution) of equal duration, where the bases of the universe, Prakriti, is manifest at the start and unmanifest at the end of a Mahā-Kalpa.[13][24][25]

1 day (12 hrs: Kalpa) of Brahma = 4.32 billion solar years (1,000 Mahā-Yugas) (14 Manvantaras + 15 Sandhyās)
1 Day (24 hrs: Kalpa + Pralaya) of Brahma = 8.64 billion solar years
30 Days (1 month) of Brahma = 259.2 billion solar years
12 months (1 year) of Brahma = 3.1104 trillion solar years
50 years (Parārdha) of Brahma = 155.52 trillion solar years
100 years (lifespan: 2 Parārdha) of Brahma = 311.04 trillion solar years
I see a slight similarity, but not a correlation.


Oh my god, that's what you call perfectly describing psychology? Ok, your standard of proof is clearly light years away from mine.

Good poetry outweighs crusades, dark ages, etc?! Not to me.

You can say that, it's just a tool and can be used for good or bad, but in reality it's a tool for controlling the masses and pitting different segments of the population against each other. As a whole, religion has done exponentially more damage to individuals, society, and progress than any estimation of it's real world benefits. Only by adding the infinite good of heaven can the scales be even close to balanced imo.
The same may be true of science, it's real world benefits, which are ubiquitous and undeniable, may be outweighed by it's side effects since making the planet uninhabitable clearly outweighs extending grandpa's expected lifespan by 10% and keeping his lights on.

OK, since there's a bunch of experts on this thread, when did the Tie fighters first show that they had folding "wings" (solar array panels) as @ the 1:13 mark. I ain't no Star Wars expert, but this is the first time I've seen this. Help?

Tesla is a good buy today even at 52 week highs. There is a growth path forward in which new factories are coming on line
Giga
Shanghai
Berlin
Texas

+ Giga Nevada battery factory adding lines.

Limiting factor is battery. Battery day should lay out the path forward.


Tesla is profitable , last 4 quarters, and believe this will continue.

I am looking long term. Min 5 years to 10 years.
I am looking for production to double approx every year.

600k this year goal
1.2mil min goal next year
2.4mil + in 3 rd year.

I've posted the 2020 NC transportation outlook on the Sift. It is really worth a look.



Also any one interested should look at Kathy Wood of ARC investment. Just look for her on you tube.
This is ARC investment link
https://ark-invest.com/analyst-research/tesla-price-target/

Sandy Monroe ( you tube) tore down a 2012 and a 2020 model and was astonished at not only in improvements but absolutely astonished in the technology lead of the produce. His group does this and sell reports to all. Evey Asian and Europe atuo manufacture has bought his report. Not 1 American Auto maker has.

Ford, GM are far behind.

Every ICE maker ( ICE Internal Combustion Engine) will have to not only continue that investment and also invest in EV. Dont think they have enough Research investment dollars on hand to do both.



Musk is a visionary Just look at what he is doing besides cars.

Space X . Few step into the space race and succeed like Musk.

Boring company . Fed up with traffic jams he look for solutions. Looked at boring machines and found then to be 15 times slower than a snail. Got a team together and designed a boring machine 15 times faster.

Supplemental storage energy for peak energy demands.

Solar panels. Redesigned and lower cost of ownership.

Musk salary /bonus ties to achievement goals, not just a set amount.


This a BUY time.
This is like buying Apple when Steve Jobs came back to Apple.


Over valuation is what people see Tesla to be worth.
Market forces, Technological improvements and Government regulations will push EV market to forefront over the next decade. There is no stopping this.

IMO, As someone who is successful at life with little to no effort, I'll say luck plays a HUGE part in my success, way more than working hard if that's even a factor.

I own my nice home and 3/4 acre yard outright, and 4 cars, a racecar, a pond I can swim in, solar power, orchard, etc.
Most of the money that bought these things came from the luck of being born into a fairly wealthy family and outliving a few. I broke my back at 31 and essentially retired.
I feel like I'm more successful than most Americans financially and elsewise, with zero debt, multiple assets, a long and stable marriage, etc....and I feel I've put less effort into achieving these things than most people. The only logical explanation I can come up with is luck, including the luck of my birth with decent genes and money for nothing.

Eratosthenes actually knew from local lore that the sun shone directly down a well at modern day Aswan, in Egypt, on the summer solstice. On the same day at noon he measured the sun's angle using a vertical stick at Alexandria.

Well explained here: https://www.khanacademy.org/partner-content/big-history-project/solar-system-and-earth/knowing-solar-system-earth/a/eratosthenes-of-cyrene

Your video, Could Solar Storms Destroy Civilization?, has made it into the Top 15 New Videos listing. Congratulations on your achievement. For your contribution you have been awarded 1 Power Point.

Kinda lost me when he claimed wind creates 11g CO² per kwh with no reference, calculations, or explanation.
Wind energy production is zero emission.
Are they including every gram produced by every step of construction and estimating a short lifespan, but not doing the same for nuclear, which takes exponentially more resources to build, run, fuel, store waste, and dismantle?
I also have a problem with him saying more expensive, higher profit natural gas plants have better prices because they're much HIGHER than nuclear prices per kwh.
He seems to ignore the spent fuel disposal/storage costs, which are significant in both cases, but while the natural gas plants don't pay for their waste (massive amounts of CO² and methane), nuclear has no choice.
Diablo canyon refurbishing was canned after Fukashima, because it's got all the same dangerous issues of being in an active earthquake/tsunami zone right on the coast with no way to shield itself from tsunamis. Before Fukashima, they totally planned to revamp and continue operations.
His levelized cost of electricity slide conveniently ignores the cost of environmental damage caused by fuel production/use.
Include all costs, coal is worst, followed by natural gas, then nuke, hydro, wind, and solar cheapest. Geothermal is great, but only in areas where it can be easily tapped, which are few and far between.

In short, his vast oversimplification and inconsistencies in what's included in his cost basis make his conclusions relatively meaningless, imo.

or... put a 4-way stop, where the main road (and cyclists in danger) would have to stop as well.

Or create a new sign "Cyclists, look left for arseholes"

Even if you don't put a 4-way stop, could certainly have a solar-powered (battery at night) LED "flasher" on the stop signs that would blink when detects movement on main road. A raspberry-pi has enough cpu power. Might cost $20k to install a pole to mount 2 cameras and solar panel(s). This "blinking stop sign" would be so rare, that it would catch drivers attention and they'll be more likely to stop.
(I'm not suggesting raspberry pi are reliable enough for this application, but my point is the computer vision can be done in < 10W, which can easily be handled by a solar panel, even in England)

Solar powered traffic cams with, you know, internets and stuff?
Or kickstarter the 100k and stagger the junction right now.

Way too long, didn't watch, but I must disagree with the description.
Population control is hardly removed from the debate. IMO it's just ignored when it's brought up because the vast majority of people won't even consider not having children to the point where when China tried to take action and limit couples to one child the world called them draconian monsters instead of intelligent.
I personally often say I think every problem facing humanity and the planet is a function of overpopulation, and I'm not alone. I admit, I'm rare in that I put my money where my mouth is and had a vasectomy in my twenties before having children. I'm of the belief that no other action could possibly have the positive effect that not adding to the population does, but I also bought a full solar system over a decade back and try to grow most of my own food, and I drive well under 5000 miles a year.
There's no reason to abandon population control in favor of technological fixes or vice versa, indeed I believe maximising both won't fully solve our issues that have taken over a century to create, but I also believe not acting in every way possible to mitigate our damages leads to certain doom for most species.
I also think none of this will make a whit of difference in the grand scheme because way too many people have decided making any lifestyle sacrifices or not wastefully living above their means is intolerable even if it means their children suffer for it.

The original solar panels. If they weren't so beautiful the sun would never be attracted to them.

Take note Elon.

This still does not wish away the problem of having to cover all wind and solar power sources with backups for windless nights.

North Africa is still the same time-zone. Consider connecting Australia.

Yes, California could export more solar and wind power, but would be forced to stop removing fossil fuel plants, stop creating new renewable energy generation, and would have to buy dirty electricity from it's neighbors. We also would, as mentioned, lose all control over our energy production to the federal government, which is owned by the oil industries.
If it was as simple as selling our excess electricity, it would be great, but it's simply not. Joining an RTO would mean California would not be able to go 100% renewable ever, because our neighbors don't and the Fed doesn't want to.
If our neighbors want to make an agreement outside of the Fed to share our cleaner power, we would likely jump at it, especially if we could insist they agree to strive for 100% clean renewable energy production. If the Fed is involved, it's a non starter. We've spent billions on making our state cleaner, fighting the federal government tooth and nail the whole way. There's no way in hell California is going to toss that investment and the freedom to regulate our own energy production in the toilet just to sell our excess to our dirty neighbors. We would rather secede.

*promote

I suspect I know what the real game is here: a military contract for forward operating bases...
You still have to move the diesel for the generators---although I know the military wants to get more and more into solar...The cost per gallon at the front line for diesel (transport and whatnot)---is unbelievable when calculated.

In 2009, the cost estimates varied from $40 to $400/gallon...