Wall Observer BTC/USD - Bitcoin price movement tracking & discussion

[jbreher]

the lithiums have made impressive strides in energy density, outpacing your Trojans by a fair bit

that said, and I am quite aware of the dangers inherent in H2SO4, if I had one of those power walls it would be installed in an airtight bunker some distance from the dwelling...

when lithium decides to do the bad, it is really bad

True. For a house system weight and energy density aren't as big a problem as in a car (where you have to like move it). So L16 or T105 batteries can get you a lot of power for a reasonable price without the major fire problem of lithiums.

As for hydrogen I've never seen issues with lead, however I guy I knew did blow the bed off his battery powered truck with flooded NiCD batteries. Those last forever but really can gas hydrogen on charge. Oh well.

100ah AGM batteries are quite nice as well but a bit more pricey per AH. Any way you go, you need to figure out how much power you need per day, then build your solar panels to put that much power back in 1/2 day (factoring in cloudy days) with a battery capacity of at least 3-4 times your load for rainy days and the like. Thus if you want to run the fridge (200 watts*24=4.8kw) some lights (about 1kw a day) and a toaster (1,500 watts for an hour a day) you're at 7kw. Thus a 28kw battery pack and 14kw of solar will do it. Assuming 5 hours of sun per day (and you factored in the 2x oversize for solar) and you're talking a ~2kw array and if the batteries are 48v then a 500ah battery pack or 16 T105's.

Takes more power than you think.

Thanks for the info. But you have a unit problem.

Watts != Watt-Hours

I hate screwing that up, but I think the math holds. watt hours is what everything should be measured in with watts alone just used for peak demand calculations.

Yeah, after interpolating to Watt-Hours where apparently intended, I didn't trigger on any math problems.

OTOH, a unit error is a math error.

Just the OCD engineering in me. Carry on...

Incidentally, someone else posted KW/h (literally KiloWatts per hour) where KWh (KiloWatt-Hours) was obviously intended. Units people, units. <<smh>> <g, d, &r>

[Biodom]

just for space exploration junkies...
https://spacenews.com/falcon-heavy-to-launch-nasa-psyche-asteroid-mission/

16 Psyche... 253 km in diameter, weight 2.4x10^16 tons (!), 90% metals, probably enough to eventually built a Dyson (RIP) sphere or maybe not...

https://www.popularmechanics.com/space/deep-space/a11098/dyson-sphere/

Psyche value:
$700 quintillion ( $7X10^20 OR $93 billion per each current Earth inhabitant).

[xhomerx10]

There are 6 confirmed cases of covid-19 in my neck of the woods now - all imported - 3 from China and 3 from Iran.

[bitserve]

... somehow isolate from the grid...

OK, I'm going to just give up and be snarky, it is an AMAZING new technology



BUT WAIT, THERE'S MORE!

THEY ARE CONTROLLED BY ROBOTS NOW!!!



living in the future man

That's funny... But what does the Tesla exactly do differently so that it is LEGAL to run an on-grid solar installation during a blackout while other systems do require to be automatically shut down on blackout? It's not that those could not have a relay to cut from the grid until the power comes back.

Probably it is fed by a breaker from the main box, and powers a second breaker panel downstream. In that sense it's just a big UPS, you hook your critical loads to the breakers attached to the unit, and when power goes out it continues to feed them.

Just like a big UPS.

For that no anti-islanding is needed. Sunny boy grid tie inverters are a different thing because they *can* backfeed the grid. Thus they need circuitry inside themselves to note when the grid is down and shut themselves off (usually because they suddenly see the 120 volts dropping like a rock as your little panels try to power the neighborhood. Not going to happen :-)

Nice. "anti-islanding"... that's the word I needed to search for more information. Yeah it is basically like you are describing. I guess it's not only a "tesla" feature, even though only a few hybrid inverters seem to support that configuration... which is weird because it is so simply but... Also I am not fully sure if that configuration is allowed in all countries. For example here there is a clear legal distinction between on-grid and off-grid systems, with different requisites.

Reducing the electricity bill is good but... (IMHO) the main advantage of having a solar installation is to have a fully sustainable (even if at reduced "service") home so a system with anti-islanding almost make no sense... Well, no more sense than any other 5-10% ROI investment that is...

Batteries like the tesla are way too expensive yet though. I wonder if they will reduce in price at the same rate than solar panels in the next few years.

[Biodom]

Bad economic numbers out of China (official numbers):

PMI 35.7 (down from 50 in january).
non-manufacturing 29.6 (down from 54 in January).
Only 43% of small companies reopened as of Feb 26.

https://finance.yahoo.com/news/virus-hit-chinas-february-factory-activity-hits-record-014411209--finance.html

Bitmain actually fulfilled it's end of February obligations, surprisingly.

[Globb0]

https://twitter.com/hmichellerose/status/1233578788228943873?s=20

Probably I would order this one for damn sure

Hell yeah that sounds delicious

Good way to pick out wrench attack marks

[Lambie Slayer]

I expect to break back up over 9k as soon as we are done messing around in this 8500-8900 range.

72 days till the Halvening and all is well.  

Time to start thinking about how you will spend your Halvening. Party plans, etc.

"halvening" is that where half the worlds population dies of bitcoinvirus?    reeee *good morning*

No GemTrannyBitz its where you sell your asshole door to door for half off bc you lost money shorting King Bitcoin.  Weeeeeee

[Paashaas]

Coronavirus update:

- 86,980 confirmed cases worldwide, 2.979 deaths.

- Countries reporting first cases: Armenia, Ireland, Luxembourg, Ecuador, Qatar, Monaco, Iceland, Azerbaijan, Wales, Belarus, Mexico, San Marino, Lithuania and Nigeria.

- First U.S death from Covid19. New cases in California, Illinois, Oregon, and Washington State (total 69). Governor of Washington State declares state of emergency.

- U.S. will deny entry to any foreigner who has been in Iran in the prior 14 days.

- Cases in Italy doubled in 2 days, 1.129 infections - 29 deaths. S.Korea 3.526 - 17. Iran 593 - 43 deaths.

- First deaths in Thailand and Australia. UK reports its first case of human-to-human transmission.

- Kuwait calls on its citizens to avoid travelling out of the country.

- Kenya suspends all flights from China.

- Australia bars travellers from Iran.

- Lebanon closes schools across the country for at least 1 week.

- Hyundai halted production at one of its factories in South Korea’s Ulsan after one worker tested positive for the coronavirus.

- At least 210 people in Iran are believed to have died of coronavirus, according to the BBC, citing hospital sources.

- 38% of Americans wouldn't buy Corona beer because of the coronavirus.

- FDA announces first drug shortage due to supply chain disruption.

- Coronavirus reappears in discharged patients.

- Mongolian President quarantined after 1-day visit to China after donating 30.000 sheeps.

- WHO raises global risk level to 'very high'.

- France bans large gatherings.

- Stock markets lost $6 trillion.

[jojo69]

( $7X10^20 OR $93 billion per each current Earth inhabitant).

now   THAT"S    inflation

[noormcs5]

Is this the reason of bitcoin / Stock market crash ?

[Biodom]

( $7X10^20 OR $93 billion per each current Earth inhabitant).

now   THAT"S    inflation

Someone should issue a 100-200 year "convertible Psyche bonds" with 3-4% coupon and an Attached right (guaranteed by all Earth goverments) to a part of uncovered wealth.
Say, $100k investment guarantees $10 trillion of "psyche future value" out of 700 quintillion projected.
So, 70mil such bonds at $100K/pop would raise $7 trillion right now, which should cover the development of necessary ships, technology, etc to do this.
Not sure who would pay the coupon, though, and numbers can be played with too.
The whole thing might jump-start the economy, though.
Sounds like a plan for after 2026 when the results come back.

[Ibian]

“Let us rejoice that we are poor, And have no Bitcoin to keep: We do not need to bar the door Ere we can go to sleep.” -Robert Leighton

"The World is the problem; the atomic bomb is the solution. kill them all " The God of War, Mahatma Gandhi (Civilization V )

“O Zeus, why is it you have given men clear ways of testing whether Bitcoin is counterfeit but, when it comes to men, the body carries no stamp of nature for distinguishing bad from good?” ― Euripides

 

That's the thing, we now know that it does. Commies are evil, they have negative human value. Kill them all.

[Ibian]

https://twitter.com/hmichellerose/status/1233578788228943873?s=20

Probably I would order this one for damn sure

Hell yeah that sounds delicious

Good way to pick out wrench attack marks

A live lived in fear is no life at all. Besides that goes for massive credit cards too. Let's stop being so damn paranoid.

[Ibian]

- 38% of Americans wouldn't buy Corona beer because of the coronavirus.

I bought it because funny. But only once, now I won't buy it because it tastes like horse piss

[fillippone]

There are 6 confirmed cases of covid-19 in my neck of the woods now - all imported - 3 from China and 3 from Iran.

Don’t worry, you are going to start local production very soon.

[dragonvslinux]

Love this hoody-wearing guy for his TA. Always manages to see the small details while focusing on the bigger picture:

The 30m $BTC chart is starting to show some striking similarities to what we saw on the 4h chart in December.

Shame it's on the 30 minute chart, but was starting to consider whether the 4hr bear flag is a form of accumulation pattern on smaller time-frames.
Either way, regardless of being out of proportion, the similarities are there. The measured move target from my calculations would be around $9,500.

[OutOfMemory]

- 38% of Americans wouldn't buy Corona beer because of the coronavirus.

I bought it because funny. But only once, now I won't buy it because it tastes like horse piss

You know how horse piss tastes like?!  

How come?    

There are 6 confirmed cases of covid-19 in my neck of the woods now - all imported - 3 from China and 3 from Iran.

Don’t worry, you are going to start local production very soon.

Could be that we all have to accept SARS-CoV-2 Covid19 as seasonal additional to the flu.

[jojo69]

man

I should get a book to talk

I hear people have books

[Ibian]

- 38% of Americans wouldn't buy Corona beer because of the coronavirus.

I bought it because funny. But only once, now I won't buy it because it tastes like horse piss

You know how horse piss tastes like?!  

How come?    

I went to the flips once (big mistake). Tried a beer named Red Horse. I can't imagine horse piss tasting worse than that.

[fillippone]

just for space exploration junkies...
https://spacenews.com/falcon-heavy-to-launch-nasa-psyche-asteroid-mission/

16 Psyche... 253 km in diameter, weight 2.4x10^16 tons (!), 90% metals, probably enough to eventually built a Dyson (RIP) sphere or maybe not...

https://www.popularmechanics.com/space/deep-space/a11098/dyson-sphere/

Psyche value:
$700 quintillion ( $7X10^20 OR $93 billion per each current Earth inhabitant).

How much of this metal is gold?
Gold stock to flow is going to be revised down!
Probably US (or anyone else) are smart enough not to bring this Gold to Earth...

<…>
Don’t worry, you are going to start local production very soon.

Could be that we all have to accept SARS-CoV-2 Covid19 as seasonal additional to the flu.

This is a very distinct possibility according to some epidemiologist heard on Italian media.
Of course no one knows a fuck of this virus, this is for sure, every day is something new (latest one: dog can be infected from humans).