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Rooftop Solar Could Reach Price Parity In the US By 2016

ggpauly Re:cost/price per kW hour comparison is nonsense (495 comments)

No. The standard system in my area (North Carolina) is grid tied, using the utility as storage. Storage is implicitly included. This is the system detailed above.

A battery system would be more expensive.

The figures above are representative of actual costs and benefits. And it _includes_ backup: there is a receptacle that comes on when the power grid goes down. If the PV system fails there are two cutoff switches (DC and 240 VAC).

4 days ago
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Rooftop Solar Could Reach Price Parity In the US By 2016

ggpauly cost/price per kW hour comparison is nonsense (495 comments)

A solar installation is an investment. The proper analysis is return on investment. Current actual price before credits and rebates for a 4kW rooftop (16 panels, abt 25 m^2), installed, is about $16,000. This includes a substantial profit for the installer -- it should be available for less in a competitive market. There's a 30% US federal tax rebate, and here in North Carolina a 35% state tax rebate and a ~$1300 utility kickback. Assuming your tax situation allows you to take advantage of the credits, the net cost is about $6000. This will completely offset an annual electric bill of about $2000 - $2500. This is about 35% return on investment. Amortizing the net cost over a lifetime of 15-20 years for various components gives about 30% per year return. This return is tax free. This is an astoundingly good return. Berkshire Hathaway's total return over 49 years is 20% annually.

In other jurisdictions without the state tax rebate and utility kickback the tax-free return is 10 to 15%. Much better than the long-term return of any mutual fund.

Without any direct incentives the return is about 6%, tax free, very safe. CDs are currently about 1%.

Comparing the actual costs is the fair comparison. Apparently TFA omitted the actual government incentives on solar, while implicitly including them in the per kWh utility figures.

Rooftop solar has other benefits as well. Inverters are available that provide power during grid failure (during sunshine), and there are external benefits in replacing dirty coal or dirtier nuke power and slightly reducing the size and power of a monopoly corporation.

4 days ago
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'Curiosity' Lead Engineer Suggests Printing Humans On Other Planets

ggpauly Planting an oak (323 comments)

Conforming to einsteinian space-time, it will take more than a present-day human life span to get a printer and your scan to a nice(ish) planet.

Maybe we need to work on the lifespan.

I plant oak seedlings; most do not.

about 6 months ago
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Ask Slashdot: Does Your Employer Perform HTTPS MITM Attacks On Employees?

ggpauly Re:perhaps not mitm. (572 comments)

Eg. we blocked youtube

Youtube is a vast collection of information of all kinds. Do you block wikipedia too? Why not the entire web?

about 9 months ago
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Ask Slashdot: Does Your Employer Perform HTTPS MITM Attacks On Employees?

ggpauly Not MITM (572 comments)

The client computer must be compromised for this to work. This is not MITM. The client is participating in the "attack".

Using an untrusted computer is always dangerous: keyloggers, scrapers, custom DNS. Laptops are security devices.

about 9 months ago
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Alan Turing Pardoned

ggpauly Re:Such Bullshit Speculation (415 comments)

You misunderstand. The inference is that the apple was spiked with cyanide. IIRC the apple was reportedly discarded untested by the investigating authorities.

The posting is misleading too. Intentional suicide is the canonical explanation for his death by cyanide poisoning, however it is really only one hypothesis of several and is not particularly well supported by publicly known evidence. Curiously, the posting also omits Turing's contributions to chemistry. He developed cyclic reactions based on reaction-diffusion patterns, and had a lab for his chemistry research at the time of his death. Articles mentioning his name in chemistry were published in Science this past year. I do not believe that a chemist would choose cyanide for suicide. I would not. Turing was a polymath much smarter than I am. His supposed depression is likewise supported by no actual evidence.

Other hypotheses, such as murder by British authorities, make at least as much sense given publicly available information. Accidental poisoning is also possible. The recent book on this topic uses twisted logic to conclude that he committed suicide. The Turing situation puts the British government in the uncomfortable ethical position of having to prove their innocence. However they put themselves in this moral situation, so I have no sympathy for them. They have done precious little effort to address this matter. They seem to want it to fade into history.

A pardon is overdue, and completely beside the main moral question they face.

Turing is one of the greatest polymaths of our age. He saved Britain several times with his cryptography genius and leadership. He made many useful contributions to mankind, many ahead of his time. He was repaid by persecution and humiliation.

about a year ago
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Ask Slashdot: Best SOHO Printer Choices?

ggpauly Re:My two rules of printing (381 comments)

My HP inkjet fried it's printhead after less than 2 years. A new printhead cost exactly $1 less than a new printer.

Now I have a Samsung B&W laser bought off craigslist a year ago. Works great, no expenses so far.

about a year ago
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What Are the Genuinely Useful Ideas In Programming?

ggpauly Re:Recursion (598 comments)

and higher order functions

about a year ago
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What Are the Genuinely Useful Ideas In Programming?

ggpauly Re:Abstractions (598 comments)

Correct you are

about a year ago
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U.S. Spy Panel Is Loaded With Insiders

ggpauly It's the Clapper! (clap-clap) (330 comments)

To restore freedom the national security apparatus should be dismantled. NSA, CIA, HSA, military - shut them all down.

This would be great for the economy in the long run. In the short run religious insanes might take advantage, however local or in some cases state or national police can and should handle these incidents. Crazy people who do not fear death can cause damage, however they are inherently self-limiting. Freedom is for the brave.

The savings to govenrment would allow us to fund the entire national government without income taxes. Debt payments and payback can be funded by import duties on foreign governments controlled by religions. Such duties would cut off the religious terrorists at the root and generally improve the planet.

Obama's committee will never consider this. We need a new committee to implement this plan.

about a year ago
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NSA Posts Opening For "Civil Liberties & Privacy Officer"

ggpauly I assumed it'd be shut down (177 comments)

didn't anybody read Snowden's leaks?

about a year ago
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Murdoch's AP Computer Science MOOC Goes Live

ggpauly Why Java? (67 comments)

Python already has a dictator - no role for Rupert.

Lisp is illegal in Russia.

Google uses it so it must be good.

Java is maintained by a large corporation.

Java is not a functional language.

Too many third-world software designers already - first world kids should learn to become something non-exportable like plumbers, waits, or politicians.

Smart phones!

Rupert thought it was just like Javascript, only shorter.

Teaching a language they could use would be too dangerous. Leave cracking to the Nazional Sekurit Apparatus.

Paid off.

about a year ago
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New Bill Would Declassify FISC Opinions

ggpauly Re:I can see it now... (130 comments)

@cold fjord:

Some politicians and CIA/NSA people use a foul mixture of fear and lies to advance a totalitarian agenda.

The wikipedia article cited (http://en.wikipedia.org/wiki/United_States_v._Reynolds#Subsequent_declassification_of_documents) illustrates this, in that the original claim, in modern times, of a National Security privilege was based on a lie and powered by fear.

Other examples are the sinking of the Maine, the Gulf of Tonkin incident, and Iraq WMDs. Hitler stirred up Germany this way, and North Korea is a fear and lies government in its purest form. Every war the US has been involved in since WW I is based on this political/military/state secret police strategy. Shamefully, some of them have been perpetrated by our government.

Fear and lies are good for other totalitarian agenda items too: war on drugs, fear of immigrants/locking down borders, and (to get back to the present topic, the PATRIOT act and PRISM.

You have been infected with a morbid fear of Al Qaeda. Personally, I'm more pissed off at them than afraid. I bought a Diesel and used biodiesel after 2001.

Have courage! We can take care of those assholes without suspending our constitution. Liberty is a risky affair. If you aren't willing to face up to those risks move to China. China is extremely safe - very low crime. Al Qaeda has no foothold there. Good luck.

about a year and a half ago
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Ask Slashdot: What To Do With New Free Time?

ggpauly Make yourself useful (299 comments)

Write an Edward Snowden biography.

about a year and a half ago
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New Bill Would Declassify FISC Opinions

ggpauly Re:I can see it now... (130 comments)

Your position is no better than "We can't tell you anything", just on the opposite extreme.
National security is no mere excuse.

Not only is it no mere excuse, it's often an outright lie, for example when it was argued to the US Supreme Court, and first upheld by that court, that a State Secrets Executive Privilege exists in the constitution:

http://en.wikipedia.org/wiki/United_States_v._Reynolds#Subsequent_declassification_of_documents

Do something people! You, do something!

about a year and a half ago
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Newegg Defeats Alcatel-Lucent in Third Patent Win This Year

ggpauly Consequences? (143 comments)

What happens with the settlements that Amazon and others made over this patent? Can that money be clawed back?

 

about a year and a half ago
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Ask Slashdot: How Can a Blind Singer 'See' the Choirmaster's Baton?

ggpauly Feel the force (189 comments)

As an erstwhile musician, my opinion is that conductors are overrated. Once you learn the music you should be able to perform by listening to the others in the group.

I played in a professional orchestra where the conductor gave a downbeat, a rest, and the orchestra had to play the opening note in unison without any indication from the conductor. It worked fine. There a many groups playing very complicated music, with abrupt and gradual changes in tempo, without a conductor. Jazz and jam bands do this without a conductor and improvisationally, although often one of the players is a leader. If the choir is a capella, the conductor could give a couple of taps with the baton on the music stand to set the tempo at the start of a piece. Perhaps the blind singer lacks confidence: go ahead and make a few mistakes rather than be constantly behind. If there's a particularly rough bit join in afterwards. The best advice is the same as to a sighted musician: listen.

Blind people have much larger areas of their brain devoted to hearing, and some are very gifted musicians. Stevie Wonder, Doc Watson, many others. In China street musicians are almost always blind. I like this about China.

about a year and a half ago

Submissions

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Sun takes over MySQL

ggpauly ggpauly writes  |  more than 6 years ago

ggpauly writes "Sun announced the acquisition of MySQL for $1 billion. They can have my copy at a fraction of the price. Sun explains the move as "accelerating" their position in enterprise IT and the $15 billion database market. Sun now claims to be the largest commercial open source contributer."
Link to Original Source

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