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greendave

744 karma · joined March 12, 2020

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greendave··on How should net metering affect your electric bill?
FWIW, there's already a $10/mo minimum monthly charge, and a $0.02-$0.03/kWh non-bypassable charge for all energy consumed from the grid in NEM 2.0. So even a net-zero solar customer always pays $10-15/mo or so.

The only reason why some solar customers pay zero is that they _significantly_ overproduce (export more than they use) and overproduction is compensated at the wholesale rate (typically $0.03-$0.04/kWh for PG&E), not the retail rate ($0.11-$0.45/kWh for PG&E).

greendave··on How should net metering affect your electric bill?
Well, if my net usage from the grid were to drop to zero, without solar (say because I used a gas generator or whatnot), I’d basically be paying the utility zero too (modulo some small connection fees). The utility still wouldn’t save on any of its fixed costs though. What net metering with solar does is simply make this option much more practical.

The straightforward solution would be to fund major infrastructure costs using something other than volumetric pricing. But it’s easier to just impose fees on solar.

greendave··on Apple M1 Pro and Max Surprises
Yep, just as they did with the 2013 Mac Pro. We all remember how well that worked out.

There's a substantial subset of high-performance computing tasks that are limited by GPU performance. But that's far from the whole equation.

greendave··on Facebook-owned sites were down
They work at facebook. Can’t imagine they have any illusions regarding their privacy/anonymity.
greendave··on A professor’s resignation highlights pressures within academia to conform
Err.. that’d be 1088. Saracenic education in 1988 would’ve been quite something, I’ll wager!
greendave··on Do not leave XPS laptop in any sleep/hibernate/standby mode when placed in a bag
That’s not quite possible. I wish 10.14 supported the 2019 rMBP 16 but alas..
greendave··on Forest Service officials close all California national forests
Yes, there’s an assumption by lots of folks that things will ‘recover’ and return to a similar state as the past, but that’s not what usually happens with megafires, especially with a warmer, drier climate.
greendave··on Forest Service officials close all California national forests
Smoke in Idaho and western Wyoming was awful a few weeks ago. Maybe it’s improved since then, but I wouldn’t bet on it.

Maybe central Montana?

greendave··on Wildfire restored a Yosemite watershed
It’s pretty bad news for the creatures and plants in that ecosystem. Maybe in evolutionary terms it’s not a big deal, but it will mean the wiping out many populations and even species.

At a personal level, the extinction of the giant sequoias or the spotted owls doesn’t seem like a very desirable outcome.

greendave··on Google and Facebook mandate vaccines for employees at U.S. offices
Also regular schools, in most cases (both public and private).
greendave··on Toyota has stepped up lobbying to preserve its investments in hybrids, hydrogen
Even back in 2019, without federal incentives, people were walking out the door with new Bolts under $30k (including tax and registration). It’s more than possible - it’s already happened. The problem is that most Americans buying new vehicles don’t want an EV hatchback - they want either a Tesla or a non-EV SUV.
greendave··on A backlash against gender ideology is starting in universities
This nicely captures the crux of the argument. I suspect it also explains why you’re going to have an uphill battle convincing a lot of folks.

When the presumption of ill intent (and not e.g. confusion or ignorance) is automatic, there’s not much left to discuss.

It’s worth remembering that cis children (and adults) are misgendered too, including for reasons as banal as unorthodox appearance or unusual names.

greendave··on Towing a Tesla at 70 MPH replenishes battery at fast charger rates
Depends entirely on the vehicle. The lookback on some is fairly long, others not so much (Bolt EV).

New EV users often forget that unlike 'gallons of gasoline' or 'kWh', 'estimated miles of travel' are not a true unit of energy.

greendave··on Experience with Apple Silicon M1 MacBook Pro as a Software Developer
And this guy needs to avoid posting the same comment twice...
greendave··on M1 Macs: Truth and Truthiness
Sure, and when they do, we can have that conversation.

But claiming that what’s available today from Apple is of great interest to the high performance market is jumping the gun.

There’s also the fact that cost (including peripherals and support) and software availability, not performance and efficiency, are what guide most PC purchases. The M1’s advantages are far less pronounced in those areas.

greendave··on The international student bait-and-switch
> The whole point of moving to the developed world is to not have to deal with developing world problems.

Tell that to the people living in Appalachia or on skid row in LA.

Like most third-world countries, the US is a fine place to live, if you have money and/or access to power. But if you're not in that category, don't expect anything from public institutions.

greendave··on Apple announces it will switch to its own processors for future Macs
> Apple will release the first Mac with Apple silicon end of this year, and it expects the transition to take two years.

That's more than twice as long as the transition from PPC. Sounds like they've not yet figured out how to do high-end. Hopefully, they won't be as quick to drop support on the $6k 2019 Mac Pro as they were on the 2005 Power Mac G5 quad (<4 years from release to unsupported by OS X).

greendave··on Why Our Intuition About Sea-Level Rise Is Wrong
> What do Roman fish tanks tell us about sea levels?

This article has many such gems. Fascinating and well-written.

(Note that it was originally published in 2016).

greendave··on Tesla adds bidirectional charging capability
Many EVs automatically charge the 12V battery from the traction battery. Still not ideal, but it does work in a pinch.
greendave··on The Intel Comet Lake Core i9-10900K, i7-10700K, i5-10500K CPU Review
Certainly true, but as the article notes, it means that you're going to need to account for a good cooling setup when you build one of these systems. Last few systems I've built (Haswell i7 and Skylake i7) have used relatively inexpensive air-coolers which have been quiet and effective. That's just not going to cut it here.
greendave··on The Intel Comet Lake Core i9-10900K, i7-10700K, i5-10500K CPU Review
> Through our tests, we saw the Intel Core i9-10900K peak at 254 W during our AVX2-accelerated y-cruncher test. LINPACK and 3DPMavx did not push the processor as hard.

That's a lot of power. Granted, on non-AVX code, the max they measured looks closer to 190W but that's still dramatically more than the 140W max that the 16-core Ryzen needs.

greendave··on The Supermicro H11DSi Motherboard Mini-Review: The Sole Dual EPYC Solution
This feels a bit like they just took an existing Intel design and tried to adapt it for AMD. Nothing wrong with that per se - by all accounts it's a good solid board - but it leads to weird choices like not using 56 of 64 PCIe lanes on the second CPU.
greendave··on GM self-driving tech unit Cruise laying off about 8% of staff
> Before the layoffs, Cruise had 1,800 full-time employees.

Their hiring rate has been remarkable. Less than 3 years ago (6/2017) they had 200 employees. Just over a year ago (3/2019), they had ~1000.

greendave··on Tesla’s readying a ‘million mile’ battery that could greatly lower cost of EVs
An estimate last year claimed Tesla's costs were ~$160/kWh[1]. This article suggests by end of next year, <$100/kWh. In percentage terms that's a big improvement, but even going by last year's estimates, only $8k out of the $40k price tag of a standard Model 3 is actually accounted for by the battery. So if that $8k drops to $4k, I can imagine the car price dropping to say $35k. But not more than that.

[1] https://insideevs.com/news/400529/tesla-battery-costs-droppi...

greendave··on Tesla's batteries aim to rework the math for electric cars and the grid
Nissan's Leaf has the ability to do this (V2G or V2H) and the devices needed to enable it are starting to become available[1]. It's a shame they're not more widespread though. A lot of 1st generation EVs are available secondhand for much less than the cost of a Tesla PowerWall, despite larger batteries.

[1] https://www.greencarreports.com/news/1127590_nissan-leaf-as-...

greendave··on Tech workers consider escaping Silicon Valley’s sky-high rents
> Just as people can work from anywhere, employers can hire from anywhere. "The talent pool gets massive," he says. "Why would my employer pay me SF wages?"

This is sort of a non sequitur. These calculations are already happening and becoming more common, regardless of whether some individuals choose to move or not.

It's my hope that many people do move away though. Even setting aside the horrible traffic and insane housing costs, it's just not healthy for the region to be so highly dependent on tech jobs.

greendave··on Mini-Mainframe at Home: A 6-CPU Server from 1997
I was wondering why it had 6 CPUs (as opposed e.g. to 8). Seems that ALR did some clever engineering to work around a limitation in the chipset which was only designed for 4.

> 6x6 is based on the same 450GX chip set (previously known as Orion) as competitors' four-CPU offerings. The reason everyone else is shipping four-CPU systems is the chip set's 2-bit CPU addressing scheme -- allowing for four-CPU IDs. What ALR has done is implement two sets of three CPUs, where the missing fourth CPU in each set is actually a stand-in for the other entire group. The Pentium Pro's round-robin multitasking approach is preserved, and the four-CPU limit is broken.

[1] http://www.sandyflat.net/digerati/gatewayalr9000/infoworld%2...

greendave··on Woman stalked by sandwich server via her Covid-19 contact tracing info
> We don’t know much about the form, but it sounds like it was paper, as opposed to digital, given that Subway told Newshub that starting on Wednesday, it will have installed a new digital contact tracing system at all restaurants.

That sounds great. Now instead of having to worry only about the employees at the particular restaurant, you have to worry about whether Subway has properly secured their system from everybody with internet access (including all of their employees).

If the price of a Subway sandwich includes giving PII to Subway, I'll pass.

greendave··on My New Old Apple IIe Computer
And for productivity, there's always AppleWorks[1]. Well, I suppose one doesn't get a 37-year old computer for productivity, but just in case...

[1] https://apple2history.org/history/ah19/

greendave··on Error messages in Haiku?
The old Net+ errors[1] are still golden. My favorite:

  A file that big?
  It might be very useful
  But now it is gone.
[1] https://8325.org/haiku/
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