Slashdot

By coincidence, today is the day I got my first yearly bill for my new photovoltaic system. Where I live (Orange County, CA, with Southern California Edison as my utility), people who have residential PV systems get billed yearly rather than monthly. A year is also pretty much the minimum amount of time for which you need data in order to find out how your system is performing, since both your energy production and your energy use fluctuate seasonally.

My bill for this year was $353.63. The system is nominally 4.4 kW, and cost $28k after rebate. It's covering about 90% of our use, which was almost exactly what we shot for -- if we produce more than we use over 12 months, they don't pay us for the excess.

People always want to know the number of years until the system pays for itself. Basically that's utterly impossible to predict. There's a reason that they exclude energy from the consumer price index -- it's because energy prices are extremely volatile. If the increased price of fossil fuels starts to be reflected in the cost of electricity, then I'm going to look like a financial genius. The other thing that's completely unknowable is how fast the technology will progress. If there's a breakthrough in technology five years from now, and the price of panels per kilowatt comes down by a factor of two, then I'll wish I'd waited. It's also kind of funny hearing the quick-buck psychological attitude a lot of Americans have toward investing money in something like this; from the way people talk, you'd think they were going to take that money that could have gone into photovoltaics and invest it in some kind of magical pixie dust that was guaranteed to pay a steady 20% annually until the end of time. And finally, beware of anyone making blanket statements about whether PV is ready for prime time or not. It completely depends on factors like the price of electricity in your area, which way your roof faces, your latitude, the amount of cloudy weather, and the amount of shade. PV is like Linux: it's ready for prime time for some people, and it's not ready for prime time for other people.

Residential solar installations typically have no batteries, so there is no maintenance cost for batteries, nor replacement costs. This type of installation uses the grid as a kind of giant battery, feeding power to the grid during the day and drawing from the grid at night.

Literally.

We had an old 8ft dish. My dad and I covered
the mounting holes with stainless mesh, filled
it with good soil and compost and planted a
nice selection of butterfly/hummingbird flowers
in it.

This kept certain plants from roaming beyond
the area desired. Use plants that trellis or
hang to cover the ugly sides/underside.

That oversized planter has been going for over
a decade now. The plants do a good job of
reseeding every year.

-AI

I have a son who was born with birth defects that affected his brain in early development. I love my son dearly, and would gladly give my life to be able to go back and fix his problems so he doesn't have to go through life like that. The poor kids only 8 years old, but has been receiving 30 hours of special ed assistance for 5 years now and barely graduated 2nd grade. I would not wish that upon the most vile scum of the planet. Death would have been kinder.

Glass is not a liquid of any kind, "technically" or otherwise.

Glass is a solid.

Glass is not a crystalline solid.

Glass is an amorphous solid.

Yes, I am a materials engineer.

This is one of the comments on the newspaper story:

He's NOT a hacker!
Jun 19, 2008 08:21
He's just lazy and stupid.

First off, this idiot goes to the same high-school as me - Tesoro High School. The guy is a total loser who just wastes his time trying to act cool and trying to "party it up" cause his family is relatively well off.

The "38 years in prison" is just a tagline. He *faces* that much time in prison because of the 69 seperate counts of felony charges, but he'll probably get a fine and probation and that's about it. (Well, that and getting blacklisted from the major schools that he had no shot of getting into.)

Secondly, since when has installing a keylogger program on a computer been considered hacking? In which case, we're all "hackers" cause we installed software on our PC. He doesn't know the first thing about programming. He asked me to fix his spyware infested computer on repeated occasions. The guy would get others to do his work for him and pay them off. He even asked people to take the SATs for him! jeez!

Lastly, he's a lazy idiot. He got caught AFTER he was denied admission to the UCs (yes, he still got rejected with his modified transcripts), when he tried to appeal the decision and have more transcripts sent out - that's when the counselor noticed the discrepency. If he had taken the time to study for the SATs instead, he'd be in by now, even with his terrible GPA.

What a ridiculous world we live in.

Amit

They're useless to me unless the source is available, preferably under the GPL. I really wish they'd work -inside- the framework of the kernel, Mesa, and xorg projects instead of building one-off binary drivers. What if I want to use their card on PowerPC, want to link against the latest (or a non-mainline) kernel, or just want to run an all-open system?

Right now I would settle for a driver that works on recent kernels since one of those improvements mean much to me if I can't actually install them.

I used to be a huge ATI fan but I've completely stopped buying their stuff. If they can't be bothered to make working drivers or have useful support answers. I can't be bothered to shell out money for something that's just going into the garbage bin anyways.

I thought so at first, too, but in depressing fact, that's the real price from Denon.

And it looks like you save 100 pennies if you order from Denon rather than Amazon:

http://www.amazon.com/Denon-AKDL1-Dedicated-Link-Cable/dp/B000I1X6PM

The reviews are hilarious :)

timothy

Although the word "nazi" is now accepted to mean "a person who is fanatically dedicated to, or seeks to control, some activity, practice, etc." this is etymologically inaccurate. Outside of playful uses (such as "grammar nazi" or a TV serial's "soup nazi") the word "nazi" should be synonymous with "a member of the National Socialist German Workers Party," and we ought to come up with some intermediary term (like "asshole" if you feel like you require a more abusive term) to refer to this kind of pedantic overbearing we've found ourselves saddled with.

Word definitions and connotations have a tendency to move around quite a bit. The word "stink" for example, was once a neutral term to describe something giving off a scent, and now has decidedly negative connotation, if not being outright denotative of giving off a bad odor. Similarly, nazi once meant the members of the political party that established a murderous and expansionist totalitarian regime in Germany. Now it used to describe someone who likes to pick on people's misuse of its vs. it's.

I'd like to coin the term "Ready for my mom's desktop." Meaning after a few hours training she can use the platform without too much hassle.

That's where Linux really drops the ball still and OS X/Windows still dominate.

The UIs are extremely poorly designed on Linux and worse still they're often inconsistent with half a dozen ways to do the same operation.

And don't even get me started on the continued use of the terminal for /any/ normal user operations.

Linux isn't a consumer desktop, in fact it isn't even making very much ground in that area. That being said it is still an awesome server and geek toy.