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#power

43 posts39 participants2 posts today
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The comment came as #Trump remained adamant that he wanted to ship undocumented #immigrants out of the country & said it was inconceivable to hear millions of cases in #court, insisting he needed the #power to quickly remove people he claimed were murderers & drug dealers.

“I was elected to get them the hell out of here, & the courts are holding me from doing it,” he said.

#Australia’s largest carbon emitter proposes big expansion to WA #GasPower plant reneweconomy.com.au/australias

#Australian utility AGL #Energy is proposing an up to 250 megawatt expansion to its existing gas-fired #power plant in Kwinana, near Perth, that according to its application will emit 196,000 tonnes of #CO2 annually, for roughly 30 years.

Yep, #Australia. Really couldn’t give a kangaroos fart for the #Environment.

RenewEconomy · Australia’s largest carbon emitter proposes big expansion to WA gas power plantAustralian utility proposes up to 250 megawatt expansion to existing gas-fired power plant near Perth that will emit 196,000 tonnes of CO2 a year for 30 years.

SOFTWARE ENTRYPY:

-80—236 classes
Cuis 7.0—675 classes
Squeak 6.0—2832 classes
Pharo 11.0—9986 classes

I miss those simpler days of , back in the late 1970s and the early 1980s, when the was just high enough to do substantive work cheaply, and the was still low enough that one person could grasp almost any codebase in its entirety.

Continued thread

Since #Congress ultimately decides & approves #spending levels, it is significant that Senator #SusanCollins, #Republican of Maine & the chair of the #Appropriations Cmte says she has “serious objections” to #Trump’s proposed #defense spending levels & cuts to programs like the #LowIncome Home #Energy Assistance Program & those that support #biomedical #research.

“Ultimately, it is Congress that holds the #power of the purse,” Collins said.

#law#funding#budget
At my previous full-time role I worked on a simulator for just these sorts of black start events. The US has come very close to having regional outages of this scale several times in the last decade, and our black start capability is largely untested to my knowledge (by which I mean largely untested in real-world scenarios).

Spain is about to face the challenge of a “black start”
https://arstechnica.com/science/2025/04/why-restarting-a-power-grid-is-so-hard/

#ElectricPower #power #PowerGrid #BlackStart
A row of wind turbines leave long shadows over an agricultural field behind them.
Ars Technica · Spain is about to face the challenge of a “black start”By John Timmer
Replied in thread

@mkj

The author did get back to me.

> I got in touch with Google and asked them to confirm - they assured me that
> they mean 1 MW per rack.

Straight from the horse's mouth...

I still don't see how this is remotely practical.

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“We won both Wars, nobody was close to us in terms of strength, bravery, or military brilliance, but we never celebrate anything,” #Trump said in a late-night post on Truth Social. “We are going to start celebrating our victories again!”

The announcement was not accompanied by an #ExecutiveOrder, & Trump did not say whether he intended for May 8 to be a federal holiday, like #VeteransDay. The #power to create & amend public holidays rests w/ #Congress.

#law #idiocracy
nytimes.com/2025/05/02/us/poli

New York City’s annual Veterans Day Parade in 2018, which marked the 100th anniversary of the end of World War I.
The New York Times · Trump Says He Is Renaming Veterans Day as ‘Victory Day for World War I’By Qasim Nauman

I saw an article today that was talking about some cloud #hyperscaler - Google, I think - switching to a high-voltage DC power system in anticipation of supporting #racks with a power density of 1 MW.

A #megawatt, in a standard rack? I know Nvidia's selling GPU racks at 120 kW, which is much more than a traditional rack can handle, and there's talk about 250 kW, but this is 4 times more than even that. It seems ... impractical.

Doing a few calculations - a 42U standard rack is 600mm wide, a meter deep, and 2 meters high, for a total volume of 1.2 m^3. If that was a solid block of mild steel, it would mass ~9500 kg. In round terms, 1MW input would be able to raise the temperature of that almost-ten-tonne steel block from the freezing point of water to the boiling point of water... in one second flat.

The cooling requirements for a system like this would be prolific, but I think it would require some never-seen-in-computing changes as well, like a "thermal crowbar". Just as a crowbar circuit shorts the power to cause a breaker to trip when some failure condition is detected, you would need something to immediately kill power to such a rack if the cooling system was impaired at all. You don't have time for this to take ten seconds!

They're also talking about it being an 800VDC system, so you need 1250A. For that, you would need a copper busbar with a cross-sectional area of more than 500 mm^2...

This doesn't smell right.

Solar/power-inclined folks with batteries, I accidentally overwrote the settings for the Amps at which our battery discharges and charges to 0. It looks like the factory setting is 50A but I'm a bit nervous about what to put in that box. It says it will take 0-60. We have 5 Pylon 3.5kW batteries hooked up to the system. Any suggestions? #solar #power

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Today, #access to the sitting US president carries a greater potential political currency than ever. “#Trump is amalgamating even more #power in the #ExecutiveBranch than anyone has before,” claims Jeff Hauser, executive director at the Revolving Door Project, an organization that seeks to scrutinize the behavior of elected officials. “With ever greater power comes a larger warehouse of favors that can be sold.”