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The good ol' comma operator. Designed specifically to trap young players.
I grew up, many moons ago, in the era of 80 x 25 character screens for programming and so squeezing as much code as you could into as few lines as possible saved the ESCCtrl + F / B keys from wearing out. The ++/-- operators, dense conditionals in loops and single character variable names were what kept you productive (sorta).
Those days are long, long gone now. The comma operator now just gives me 'Nam flashbacks
cheers
Chris Maunder
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The lowest price in my lifetime for oil was about $3/bbl - until today - when it dropped to $2/bbl, then below $1/bbl and finally went ![Elephant | [mastadon]](https://codeproject.freetls.fastly.net/script/Forums/Images/elephant.gif) ing negative!
Normally, I'd delighted when oil prices drop - it save a lot of money for virtually everyone, both directly and in manufacturing costs. Apparently the "too much of a good thing" can really be bad.
Ultimately, a lot of the smaller producers will go under - and when all this straightens out, we may unfortunately see the $100-$150/bbl again as the OPEC-ish countries have their day.
Well, I didn't wish for this, but it certainly is a good example of "Be careful what you wish for".
| Ravings en masse^ |
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| "The difference between genius and stupidity is that genius has its limits." - Albert Einstein | | "If you are searching for perfection in others, then you seek disappointment. If you seek perfection in yourself, then you will find failure." - Balboos HaGadol Mar 2010 |
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It complements negative interest rates nicely. 
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I cannot help but wonder where it all will end? 
Get me coffee and no one gets hurt!
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"Oh Brave New World!"
| Ravings en masse^ |
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| "The difference between genius and stupidity is that genius has its limits." - Albert Einstein | | "If you are searching for perfection in others, then you seek disappointment. If you seek perfection in yourself, then you will find failure." - Balboos HaGadol Mar 2010 |
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Momma! 
Get me coffee and no one gets hurt!
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We have seen similar situations with electric power generated from windmills in Denmark and Germany. When the working day is over, the need for electricity falls drastically i Middle Europe, but the windmills spin at the same speed. Nor can other kinds of power plants, like oil and more than any other: coal, easily be cranked up and down to adjust production to needs.
It turns out to be cheaper to pay Norway for accepting the excess electricity than alternative ways to regulate it. Besides, the Norwegian peak consumption is highest in early morning, before business life wakes up, and from late afternoon until midnight. This is because we are much more dependent on electric light and electric home heating that most other countries. Norway's hydroelectric turbines can be turned from zero maximum production (or vice versa) in not that many minutes. (It takes more time to switch the direction of those huge trans-ocean cables than it takes to adjust the production!)
So, during a few periods the last few years, Norway has been paid for covering peak demands mid-day, and been paid for handling the surplus power at night time. That's a fairly good deal. All it takes to copy that for the oil is to have storage space for a few billion barrels of oil. Or an immediate need for a few billion barrels, but that is less likely.
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Being fortunate enough to have won the topography lottery and have lots of hydro to buffer renewables peaks refusing to align with human activity (wind peaks overnight, solar at noon). Elsewhere until batteries become a lot cheaper the only reasonable option is to build lots of gas turbine plants that can spin up/down in the course of a few minutes.
In the US cheaply produced domestic gas also has the benefit of costing less to produce power than burning coal (vs places where it's an expensive import and coal is cheaper) meaning that winning marketshare in a shrinking (non-renewable) market means that over the last ~15 years we've largely built up the gas generation we'll need to handle first production/demand mismatches and later weather refusing to cooperate while gutting the most polluting legacy power plants in the process.
Did you ever see history portrayed as an old man with a wise brow and pulseless heart, weighing all things in the balance of reason?
Is not rather the genius of history like an eternal, imploring maiden, full of fire, with a burning heart and flaming soul, humanly warm and humanly beautiful?
--Zachris Topelius
Training a telescope on one’s own belly button will only reveal lint. You like that? You go right on staring at it. I prefer looking at galaxies.
-- Sarah Hoyt
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Further south in Germany, where it is getting more mountainous, as well as in several other countries (USA included), they have built huge artificial dams in the hills. At nighttime these are being filled from a lower reservoir by electric pumps utilizing the surplus electricity from wind power, nuclear power, coal and oil power plants. At daytime, when all the power is needed, the dams are emptied through water turbines to the the lower reservoir. This is a local/regional alternative to ship electrons back and forth across the North Sea.
If you do the math, you'll see that it takes huge amounts of water to produce a thousand kWh. Or, the water must be lifted to a great height: If you collect it as rain at 1500 meters above sea level, it represent 15 times as much energy per cubic meter as you get by pumping it up to an artificial dam 100 meters up. So those pumped hydro power stations do not have sufficient capacity to save energy from one season to another, only from nighttime to daytime.
(We certainly have huge artificial dams in Norway as well - take a look at Vatnedalsdammen[^], and notice the fellow standing at the foot of the dam. The water surface is roughly 800 m above sea level and dam capacity is 1.15 billion cubic meters.)
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I'd slightly disagree with your fear of future higher prices. I can't speak for the rest of the world, but the US fixed this problem by deregulating oil and natural gas production. When prices fall below a certain point, most of the older oil wells are just turned off. When the price starts going up, they're turned back on. It keeps us from having the stupidity that we had back in 1973 "the oil crisis".
Now your concern is valid for many other businesses. I'm glad I don't own stock in cruise ships, hotels and airlines, but that reminds me, might be a good time to buy now.
Charlie Gilley
<italic>Stuck in a dysfunctional matrix from which I must escape...
"Where liberty dwells, there is my country." B. Franklin, 1783
“They who can give up essential liberty to obtain a little temporary safety deserve neither liberty nor safety.” BF, 1759
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Oil wells, sure. But a lot of shale oil producers are toast unless something changes very quickly. Forget their shareholders; even their bondholders will learn a lesson that they'll not soon forget. Unless, of course, shale oil gets bailed out, which wouldn't surprise me. It would just be another variation on the insane easy money policies that have seen artificially low interest rates encourage the financing of all manner of asinine endeavors, including stock buybacks by zombie companies that would go bankrupt if they couldn't keep rolling over their debt.
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Greg Utas wrote: It would just be another variation on the insane easy money policies that have seen artificially low interest rates encourage the financing of all manner of asinine endeavors,
Like moronic real-estate investments, probably the main reason wanting to have 0% interest and risking someone else's money.
| Ravings en masse^ |
|---|
| "The difference between genius and stupidity is that genius has its limits." - Albert Einstein | | "If you are searching for perfection in others, then you seek disappointment. If you seek perfection in yourself, then you will find failure." - Balboos HaGadol Mar 2010 |
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0% interest rates are now a tiger by the tail. If they were set on the market, they would destroy government budgets and all the real estate bubbles. This is not going to end well.
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touche', I'll plead my ignorance on the shale oil industry.
It's going to be interesting.
Charlie Gilley
<italic>Stuck in a dysfunctional matrix from which I must escape...
"Where liberty dwells, there is my country." B. Franklin, 1783
“They who can give up essential liberty to obtain a little temporary safety deserve neither liberty nor safety.” BF, 1759
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Breakthrough Solid State Battery - 900 Wh/L Samsung [2020] - YouTube[^]
If it's not total bull (and if you think I understand all that, you don't know me that well) then that's the kind of breakthrough we need if we are to get electric vehicles out of "niche" and into the mainstream. 1000 Km range, 1000 charge cycles, faster charging, lower manufacturing cost? That's ticking a lot of boxes for those of us who don't live in a city with a private drive to park the car on while it charges.
And ... a phone that lasts more than a day without needing charging? 
"I have no idea what I did, but I'm taking full credit for it." - ThisOldTony
AntiTwitter: @DalekDave is now a follower!
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I wonder why they went from defining battery capacity in Wh/kg to Wh/L?
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Not sure, but I can imaging that it bether illustrates the relation to the car volume (and also makes it maybe more easy to compare it to gasoline per car volume)
It does not solve my Problem, but it answers my question
modified 19-Jan-21 21:04pm.
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I suspect they may have a higher density and therefore seem better in comparison to older batteries.
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I did not watch the video 
It does not solve my Problem, but it answers my question
modified 19-Jan-21 21:04pm.
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I looked at a minute, reacted on the fact that they use nonstandard measurements and went for info on the web instead.
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OriginalGriff wrote: 1000 charge cycles
Not sure about the 1000 charge cycles. That's only three years if you charge it everyday like you do with a phone.
People have got into the habit of charging frequently whenever they can.
A Fine is a Tax for doing something wrong
A Tax is a Fine for doing something good.
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...but if you can get 1000km on a single charge, you're not going to be recharging every day.
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This is where you run into other issues. Most people will be try to charge their vehicles at home. To charge a battery of any type to capacity to last 1000km will require a significant amount of electricity from you home supply which will not generally be rated for that capacity. Hence the charging will generally be over many nights with driving during the day. Unless of course you make major change to your power supply. (and the utility company will play a large part in deciding that)
Hence it all depends on how the battery will handle half, quarter charges (or whatever) on a frequent bases.
A Fine is a Tax for doing something wrong
A Tax is a Fine for doing something good.
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yeah I remember when I got my latest phone,
went for days on each of the first few charges
... few months later already needing daily charging.
same as the phone before, and the one before that ...
oh, and has your phone, (even when new) achieved it's claimed charge lifetime?
"1000km" - IN THE LAB = real-life maybe (being generous) 700km on the first few charges
after 6 months you'll be doing well to get 300km
and 3 2 years, yeah about then: calling AA for a tow home from the shops after all-night charging.
pestilence [ pes-tl-uh ns ] noun
1. a deadly or virulent epidemic disease. especially bubonic plague.
2. something considered harmful, destructive, or evil
Synonyms: pest, plague, CCP
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When I go vacationing in North Norway, I have several times been driving 1000+ km a day. I also had a vacation home in South Norway, 900 km driving, and I often did that in one setting.
I guess Norway is the country with the highest electric car density - more than half of all new cars sold are electric. We have been using so much electricity in this country, for heating, hot water, light, cooking, ... everything. Now also for electric cars. My main fuse is 3*63A (although I have never been close to needing that!)
If you buy an electric car, you install a charger with minimum 7 kW charging effect. Most established car models cannot handle more than 11 kW, so many el-car owners stop at that, but a fair share go for 22 kW chargers - they are not that much more expensive, and future-proof even if your current car cannot utilize it. Then you can fully charge a 100 kWh battery in less than a night, even if charging is slower as the battery fills up.
I do not have an electric car yet (but I do have an electric motorcycle). Yet, when I put up a new free-standing garage this summer, I plan to install an 11 kW charger, for future proofing, and for el-car friends visiting me.
(We have a somewhat special approach to electricity in Norway. When I bought a new cooking store, with two gas burners and two electric induction hotplates, everybody laughed at me. Gas? What do you want that for? I even have a couple portable 4.5 kW propane heaters, both because they are great boosters when I come home to an ice cold house, and in case we have a power outage. But Norwegians don't see the point of it. Electricity is everything.)
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