×

Announcing: Slashdot Deals - Explore geek apps, games, gadgets and more. (what is this?)

Thank you!

We are sorry to see you leave - Beta is different and we value the time you took to try it out. Before you decide to go, please take a look at some value-adds for Beta and learn more about it. Thank you for reading Slashdot, and for making the site better!

Comments

top

Why Elon Musk's Batteries Frighten Electric Companies

catprog Re:Are they really that scared? (460 comments)

People who go solar are essentially the freeloaders in this system as they pay less of the overhead for the amount of transmission service they receive.

Is that the same as people who use less power paying less then those who use more?

about two weeks ago
top

Jackie Chan Discs Help Boost Solar Panel Efficiency

catprog Re:Mass produce! (194 comments)

Where are you getting 1c/kwh power from currently?

about three weeks ago
top

Rooftop Solar Could Reach Price Parity In the US By 2016

catprog Re:My two cents... (516 comments)

Besides, on average, solar power users produce power during the day, when demand is high and the cost of production is relatively high (because peaker plants are expensive). They consume power mostly at night, when demand is low and the cost of production is low. So no matter how long a cycle you average it over, the power plants are making a big profit from buying relatively cheap solar power instead of expensive natural gas peaker plant power (while selling that power at the same price). That more than pays for the negligible marginal grid maintenance costs arising out of providing power to one extra home.

Technically it is the grid not the powerplants that get the profit.

about a month ago
top

Rooftop Solar Could Reach Price Parity In the US By 2016

catprog Re:My two cents... (516 comments)

If I run the same amount of current in two directions down my wire what extra costs are their over the other guy who just runs it in one way?

(In other words the cost should be the max of either but not the combined max of both)

about a month ago
top

First Commercial Mission To the Moon Launched From China

catprog Re:Correction (73 comments)

Deliberately moving to the moon to fix problems in their orbits but not planned from the start.

about 1 month ago
top

First Commercial Mission To the Moon Launched From China

catprog Re:Correction (73 comments)

Apparently it ended up under the control of the DoD

about 1 month ago
top

First Commercial Mission To the Moon Launched From China

catprog Re:China is more capitalistic than the USA (73 comments)

And the more checks you put in the money you have to spend making the checks and less money on the people who need it.

about 1 month ago
top

Elon Musk Warns Against Unleashing Artificial Intelligence "Demon"

catprog Re:Not really true AI we should be worried about. (583 comments)

I would argue flushable toilets in the city are a need. Unless you can think of a way to remove all the waste another way

about 1 month ago
top

Automation Coming To Restaurants, But Not Because of Minimum Wage Hikes

catprog Re:Automation and jobs (720 comments)

And did the social engineers who created the current system pay the price for it's failures?

Or are taxpayers paying for the full time workers who can't get enough money to be above poverty?

about 2 months ago
top

Password Security: Why the Horse Battery Staple Is Not Correct

catprog Re:Not contradictory (549 comments)

Sorry the calculation should be
10,000 * 16 * 100 * 2 * 2 = 6.4 * 10^8

about 2 months ago
top

Password Security: Why the Horse Battery Staple Is Not Correct

catprog Re:Not contradictory (549 comments)

XKCD's shitty advice is protecting against brute force attacks by using length (even though in many cases the effective length is still limited to something stupid like 16 characters). By following XKCD's shitty advice, you open yourself up to statistical attacks - your search space is just a combination of a few words. People generally only use a few thousand words, and when you want them to be random about it they'll likely pick common ones, fairly short ones, mostly nouns, etc.

4 words from a list of 1000 words = 10^12 possible passwords

10,000 uncommon words, 4 symbol replacements on average , 2 digits of numbers , numbers at the start or end. capital/non capital at the start.

10,000 * 16 * 2 * 2 * 2 = 1.28 * 10^7.

A lot less passwords.

Any other ways you can think of to increase the passwords complexity?

Humans are terrible at being random. Any magician, con-artist, or statistician will tell you that. The most commonly-picked "random" cards are the ace of spades and the queen of hearts, for example. The 4 "random" words scenario will give you a search space many orders of magnitude smaller than a good, traditional password.

That is why you need a randomizer to pick the words rather then you picking them.

about 2 months ago
top

Solar Could Lead In Power Production By 2050

catprog Re:The big problem with PV (167 comments)

I'd say you live in a warm climate.. Cloudy days means more energy in colder climates. France uses at its peak about 100 GWatts of electricity. Say you'll need at least 10 hours of battery storage, then you are talking about 1 TWh of power storage for 100% replacement by PV. .

So a peak that lasts 10 hours?

If fact the 40% peak PV is for a Sunny Sunday afternoon, so a lot further away from 80% than you think. .

So storage is even further away from being needed?

about 2 months ago
top

South Australia Hits 33% Renewal Energy Target 6 Years Early

catprog Re:costs (169 comments)

And if we go to the actual data at http://en.openei.org/apps/TCDB... and not a cached version we get a different view.

about 3 months ago
top

South Australia Hits 33% Renewal Energy Target 6 Years Early

catprog Re:Works particularly well in SA/Victoria (169 comments)

The market also goes to QLD,,NSW and TAS.

SA still is getting less then zero prices now.

about 3 months ago
top

How Big Telecom Smothers Municipal Broadband

catprog Re:Eliminate municipal monopolies (111 comments)

Such as all the universal health care systems paying less(public + private) as a percentage of GDP the the US government spends on health?

about 4 months ago
top

Numerous Methane Leaks Found On Atlantic Sea Floor

catprog Re:Global Warming? tsarkon reports (273 comments)

So I presume you are not a big fan of mammals but instead reptiles. They were the dominate species after all during that period.

about 4 months ago
top

Numerous Methane Leaks Found On Atlantic Sea Floor

catprog Re:Global Warming? (273 comments)

And how much CO2 has nature taken out over that time period?

about 4 months ago
top

FCC Warned Not To Take Actions a Republican-Led FCC Would Dislike

catprog Re:By that logic... (338 comments)

Was that the company that brought near GPS spectrum despite it being regulated for something different then what they wanted and then the FCC would not change it too what they wanted?

about 4 months ago

Submissions

catprog hasn't submitted any stories.

Journals

catprog has no journal entries.

Slashdot Login

Need an Account?

Forgot your password?