Slashdot is powered by your submissions, so send in your scoop

 



Forgot your password?
typodupeerror
Slashdot Deals: Prep for the CompTIA A+ certification exam. Save 95% on the CompTIA IT Certification Bundle ×

Comment Re:In "oil" country no less! (Score 1) 317

the crucial difference is you can still get things built in Texas.

California gets a higher percentage of it's energy from solar than any other state, by at least an order of magnitude, and more solar capacity is being built right now in California than in any other state, by far.

If Texas, which has a huge amount of prime solar real estate can catch up, more power to them, but to say nothing can be built in CA is not paying attention to the reality on the ground.

Comment Re:Can the enemy actually shoot down the F35? (Score 1) 732

The Navy went for F-18s because it combined good fighting with better all-around capabilities (distance and payload capacities).

I've read that the Navy went with the F-18 over the F-16 for political reasons - the Air Force already used the F-16 and they wanted their "own" plane.

I wish I could find the article. I don't know how much truth there was too it, but it was interesting.

Comment Re:Agriculture uses way more water than residents (Score 1) 390

- Agriculture uses 39% of the water vs. 11% for residential use

It's actually 80% Ag use if you don't count the deceptive "Environmental" use number.

When counting water use, if you only count developed water, that is, water that is captured from the environment for human use, agriculture uses 80% of that water.

The 51% percent "used" is actually water that is not captured at all. So, for example, any river water allowed to flow into the ocean is "used" for environmental purposes. Of course, we could capture most of that water too, but entire ecosystems would be destroyed in the process.

This 40% number is frequently pushed by Ag interests to make their impact on the water system seem smaller than it really is.

Comment Re:There is no reason for any drought to continue (Score 2) 390

Population growth has next to nothing to do with California's water crisis. Agriculture uses 80% of California's developed water. California's water problem lies in the vast expanse of perennial cash crops between the Grapevine and Stockton.

The smart approach is for agricultural production to be curtailed during these droughts so that water can be allocated to much more economically productive urban and industrial use.

Desalinization would make sense if there were no better option, but there is.

Comment Re:Efficiency (Score 1) 904

I don't have the inclination to provide data for everything (s)he said, but I have personal experience with charging efficiency and this study coincides with it...

https://www.veic.org/docs/Tran...

TL/DR:

* 80%-90+% efficiency when charging at a rate higher than 2kW (L2/240V) depending on rate of charge and climate.

70%-85% efficiency when charging below 2kW (L1/120V charging)

My Chevy Volt has 10.7 kWh usable battery and based on OnStar data it takes roughly 12-13kWh to recharge. That's 82-89% efficiency, which perfectly matches the study's findings. Unfortunately the Volt only charges at a maximum rate of 3.3kW. A 6.6kW charger would get efficiency well into the 90s.

Comment Re:Doubtful (Score 1) 904

Not worth it yet next to my $15k one year old used Ford Taurus

If we are comparing used, you can get a used electric car with plenty of battery warranty right now for the same price range. Due to state and federal tax rebates, they depreciate more quickly than ICE cars when you first drive them off the lot.

Comment Re:Arm chair quarterbacking (Score 1) 160

I recently purchased a Volt which, of course, has OnStar. Through the OnStar web/app interface you can monitor various things, including charging, tire pressure and charge state/fuel level and perform things like remote starts, and door locks/unlocks.

After about 8 months of dealing with the horrendously unreliable OnStar website and the OnStar app, I would say us GM car owners are probably boned.

BTW, even non-4G OnStar connected cars are still connected to the Internet. It's just through Verizons slower CDMA network.

Help me, I'm a prisoner in a Fortune cookie file!

Working...