Want to read Slashdot from your mobile device? Point it at m.slashdot.org and keep reading!

 



Forgot your password?
typodupeerror

Comment Re:Carbon capture is stupid. (Score 2) 291

So they assume 30 years of imaginary grid-scale batteries, and discovered that wouldn't work, so they also assume generous "demand response". So, sure, if you allow the power companies to turn off your A/C and idle your workplace, you can use all renewable energy.

"For the 50 states separated into eight grid regions (WECC, MRO, TRE, RFC, SERC, NPCC, ASCC, HICC), they are a combined 29.8 TWh."

This year about 2.5TWh of batteries have been build into cars. Up 70% from last year [https://cleantechnica.com/2021/12/31/the-top-electric-vehicles-in-world-during-record-sales-month/ ]. This trend will continue. Once the cars get old the batteries will get a second life in storage, since requirements are much lower.
Why are 29.8 TWh unrealistic in 30 years time? is currently available or stored."

"Loads subject to demand response can be shifted forward in time a maximum of 8 hours. Loads subject to heat/cold storage can be met with such storage or with electricity, either currently available or stored. Inflexible loads must be met immediately with electricity that is currently available or stored."

Volkswagen in Germany is already offering smart charging an electricity tariff where you have an app to specify a time you expect your EV to be fully loaded and they will optimize charging according to grid load/electricity prices [https://www.youtube.com/watch?v=yx1tGfyk5nY ]. Vehicle2Grid is planned for the end of the year.
A smart heat pump can store thermal energy by heating/cooling water. There are many loads that can be shifted without consumers noticing.

---rant on---
It always amazes me how adversarial users on tech sites can be to tech that does not fit their world view. My previews comment was moderated "Troll". For citing a study!? And what about the socialist comment? A grid with many small producers competing in a market is socialist, but nuclear power plants operated with goverment subsidies and insurances is a free market?
---rant off---

Comment Re:Carbon capture is stupid. (Score 1, Troll) 291

"This study analyzes 2050/2051 grid stability in the 50 U S. states and District of Columbia after their all- sector (electricity, transportation, buildings, industry) energy is transitioned to 100% clean, renewable Wind-Water-Solar (WWS) electricity and heat plus storage and demand response (thus to zero air pollution and zero carbon)." https://web.stanford.edu/group...

Comment Re:Big mistake (Score 2) 215

Name one where no EVs are viable.

That is, basically mostly everywhere except a few densely populated regions in the "developed" world, where electric cars "dominate" at about a fraction of 1% of all vehicles.

In Norway 16% of all cars are electric. In november 74% of all newly registered cars were electric. Norway is cold and not very densely populated.

You have, for example, Germany, where it is not unusual for people to be stuck in a traffic jams for hours in very cold weather, which lasts several months a year. For them, EVs aren't really an option, as most will have to be ferried out of such a traffic jam.

I'm living in Northern Germany. Never heard anything like this. Also more than 20% of new car registrations in Germany are electric cars. The share is rising fast.

Comment Re:What about the batteries? (Score 1) 182

"Global plugin vehicle registrations were up 98% in September 2021 compared to September 2020, scoring a record 685,000 units (or 10.2% share of the overall auto market, the first time the global market share reached two digits). (from https://cleantechnica.com/2021... )

Of course manufacturers are scrambling to double production every year. This will always be hard. But on the other hand they only need to keep doing this for less than 4 years ;) Grid storage will be easier once the first cars reach their EOL.

Comment Re:Records will continue to be broken (Score 2) 159

There is some hope: The increase in births has already stopped. Total births slightly declined for the first time in 2019: https://ourworldindata.org/gra...
Now the world population only grows because of an increasing life expectancy.

China has a fertility rate of 1.3 (2.1 are required for a stable population). Removing the 2-child limit only prevents the population from crashing down (if it has any effect at all). Chinas population will start declining within the next few years (https://www.scmp.com/economy/china-economy/article/3132980/china-population-latest-census-confirms-increase-1412-billion ).

Comment Re:Not just WebLogic, also JBoss, Websphere, 1300 (Score 4, Informative) 30

Going one level broader, the concept that you don't keep data and executable code separate is dangerous. That's precisely what strict object-oriented approaches require, though. If you can't accept data without accepting code attached to that data, that is dangerous, and that's exactly what OOP (in the strict sense) requires. Java has this issue mostly because it's "overly" object-oriented, because simple data like a string comes with executable code attached.

This is not quite right. Serialized objects only contain data and no code. But still code is being executed when deserializing an object (but this is code that already resides on the server-side and is not sent by the client). So the exploit is a bit more difficult. The original (I think?) description can be found here: https://foxglovesecurity.com/2...

Comment Re:Where IS Java today? (Score 2) 89

Write once run anywhere failed. But we also found out it isn't important. THe fact is you don't change your backend server's OSes that often (or really ever), so the ability to port it without effort just isn't that valuable. Its an idea that would have rules the 80s (had it worked), but is pretty pointless in the 2010s.

This is just wrong. Most of the Java development happens on Windows/Linux while the backend servers run on Linux/ZOS/Cloud/whatever. So while you seldom port the backend servers themselves you always port while going from a local to a production environment. So this is really relevant and it's working and saving lots of money.

Comment Re:The liberals are in fact aiding the moslems ! (Score 1) 965

And then you can talk about how, instead of simply paving those areas over into glass, which we could do any time we want,

So this isn't about doing what is right or will lead to a better world, but being stronger and forcing everyone into submission? I got the bigger club: Do what I say. This isn't the best way to instill confidence that the "western way of living" is better or more moral.

we're instead going to as much trouble as possible to hit and limit damage to individual targets that match very specific criteria.

What specific criteria? http://www.huffingtonpost.com/... http://www.businessinsider.com... Is there a court that can be called to question drone strikes? What happens if somebody does not adhere to these "specific criteria"? Any consequences? No? So these are just arbitrary killings.
Also the words "as much trouble as possible to hit and limit damage" strike me as caustic. A proper way would be to arrest those people and give them a proper trial. But obviously that is far to much trouble.

No, they have a huge problem with immigrants who don't want to become part of French culture, don't want to do what's necessary to thrive in that economy, and who show up expecting to be handed a nice standard of living in exchange for ... showing up.

Well you could make them feel more welcome:

https://www.youtube.com/watch?v=ZhfGcXeFCtU
http://www.france24.com/en/20150120-calais-france-migrants-denounce-police-brutality-hrw
If you treat people like shit, it is fairly likely that they won't want to integrate.

Just like is happening across Europe generally, now. Europe has only itself to blame for allowing it to happen.

Blame ourselves whatfor? In my town we got a great new restaurant opened by a woman from Iraq which is great. I worked with a software developer from Afghanistan (which didn't make any difference whatsoever). The CEO of a company I worked for was from Turkey. Many of the people from the middle east are integrated into society without any problems.

It's about culture. The religion in question is the organizing system within the culture that's causing the problems. The voices of that religion are the motivating features of the culture, and the fundamental features of that religion spell out how the people who adhere to it are supposed to interact with those who aren't members.

Just take a look at history. Christianity has been used to justify the inquisition, burning witches, the crusades, wars between catholics and protestants. Only in the last 200 (?) years it has been more or less a religion of peace. Homosexuals have been a problem for the church for years, but now it's changing. Divorces are getting more and more accepted.
Since the bible hasn't changed in all those years, this somewhat indicates that religion is more a backwards reflection of society, than it is coining society.

Quit making excuses for medieval-minded theocratic thugs and their willing followers.

I don't really care all that much about those thugs. They are a lost cause. Most of the actual terrorists are already dead anyway. And I just hope the police catches whoever is behind this (organization/financing) and locks them up for good.
What I care about is that we (as the western world) do not response in a likewise medieval manner and start another pointless war or kill more civilians. I think you can see in Israel / Palistine what happens if fundamentalists on both sides work together to create a stable environment of mutual violence.
Also I care about the next generation of immigrants which has not been radicalized yet, and where we should try to help then integrate into our society. The people currently arriving are running away from ISIS not supporting it.

There are poor people in Appalachia, too. They're getting even more unhappy as the EPA strangles their historical way of making a living. They aren't shooting up concert halls or lopping heads off of people they don't like.
I guess the difference is, that things are ok, if you are poor, but proud. Not so much, if you are being discriminated. Of course the immigrants have to change their ways. But we have to give them all the help possible to do it, too.

Comment Re:The liberals are in fact aiding the moslems ! (Score 1) 965

Don't condemn the group, condemn the atrocities, the actual violation of human rights, and those who do the violating.

You're forgetting to condemn the millions of people amongst who the live, and who allow them to continue to operate, be funded, preach hate and recruit. The militant jihadis could never operate without the tacit approval of many millions of their less violent but none the less supportive co-religionists.

So lets condemn all Americans, because they allow the US government to operate, which is performing terrorist drone strikes all over the world.

The problem is, that the world is never that easy. Many people inside the areas occupied by ISIS will cooperate with ISIS just to survive. Can you blame them?

If you look at France: They have a huge problem integrating immigrants (or at least treating them reasonable well).If you read an article like this: http://www.theguardian.com/wor... you have to wonder, if this is really about religion or about the youth having no future and then finding a reason for getting violent.

Comment Re:Germany has reciprocal spying agreements (Score 1) 111

I agree they should not prosecute the bloggers, but exactly what the hell were these bloggers thinking? They were going to shut down or change the nature of spying? Make it respectful and transparent? What kind of quixotic cluelessness about reality is this?

The bloggers published some budget plans of the "Verfassungsschutz" indicating that they were working on monitoring social networks. This should not be secret information at all and is not about spying but about controlling the spies. Or do you think the agencies should be allowed to operate without any supervision?

Currently the Verfassungsschutz is sponsoring right wing terrorists ( https://translate.google.com/t... ) instead of doing what they are supposed to do. So there is a severe lack of supervision.

Comment Re:Germany should pay war reparations for WWII (Score 1) 743

This kind of ridiculous stunt is why the Germans are sick and tired of giving Greece money.

Germany is not giving money to Greece. See e.g. https://www.youtube.com/watch?... Germany has a balanced budget because of the crisis in southern Europe. Even if Greece is bankrupted, Germany will still have a net profit.

Also quite some of the debt of Greece comes form buying German weapon systems. The have been rumors that new credits have been tied to those deals in the past.

Comment Re:Too many secrets (Score 1) 74

Unless that is the German government has something it wants to keep secret from its own people. But in that case they become the pot calling the kettle black.

Well the parliament has the oversight over the secret service (in theory at least). So they have to be told what the secret service does. This information should be secret, because why bother having a secret service, otherwise? While I agree that most political decisions should be transparent, it makes some sense to keep things secret in this case.

Also I don't think the US would react in a positive way, if the BND published all information it has on the CIA in the parliament.

Slashdot Top Deals

"There are some good people in it, but the orchestra as a whole is equivalent to a gang bent on destruction." -- John Cage, composer

Working...