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


Forgot your password?

Comment Re:Oil companies will spend up big on Republicans (Score 1) 566 566

Solar power + grid storage will initially replace natural gas peaker plants and break into the base load production. Southern California Edison is probably the most visible and recent example. Grid storage enables more variable power sources like solar and wind to function on the grid, displacing natural gas peaker plants. Simultaneously, the same technology that enables grid storage, low cost batteries, is bringing the EV to the mass market within the next 2 years.

Solar is certainly a major part of this energy shift. The oil companies take a hit on two fronts. Within the next 20 years the major uses of oil will be reduced to heating and large/utility vehicles.

Comment Re:Sadly, gas is cheaper than electricity in CA (Score 1) 688 688

"The Tesla would take all day to charge." Why? Wouldn't you just need to recover the electricity you used getting to work? The only difference would be in efficiency. 2015 Ford C-Max Energi 88 mpge combined (source: fueleconomy.gov) 2015 Tesla Model S AWD 93 mpge combined (source: fuelecony.gov). As it turns out, the "lumbering overpowered" (no bias detected) Tesla might be even more efficient that the C-Max.

Comment Re:Price is a second order function (Score 1) 292 292

Tesla Supercharging stations.

Not good enough nor plentiful enough nor convenient enough nor standard enough. They take 45 minutes to get an 80% charge and over an hour to get a full charge. Plus they're not much use if you don't have a Tesla. They're a good effort in the right direction but not good enough by a long shot yet.

Apples and Oranges.

Do you run your gas car to 0 before filling up? I usually fill up at about 1/4 tank.

Why fill to 100%? I think that's rarely needed. You only do this with gas because you can't fill up at home. Say you've got 100 miles until you're home (or next stop). Get to 150-170 miles (15-20 minute charge max) and be on your way. And MOST OF THE TIME you're leaving and returning from your house so you never need to fill up at a station.

What percentage of the time are you driving > 200 miles in a day? Those few times are the only ones a "filling station" matters at all, and DC quick charging is a pretty good solution and getting better.

Comment Re:Funding (Score 1) 169 169

At a most fundamental level, money is a substitute for trade because direct trade is inconvenient. The private sector doesn't create money. It produces goods and services that are traded using money. That said, please explain why the government should "create money for the General Welfare".

Comment Re:The water was flammable decades... (Score 1) 266 266

Just wanted to add that the problem is inherent. The hole drilled creates a path from the hydrocarbons to the drinking water. A fault in the casing or grout can cause drinking water contamination. All it takes is negligence, incompetence or just Murphy's Law.

Comment Re:Obsessed with keeping government out of busines (Score 1) 289 289

"if local government is using public funds to run fiber, allow other telcos the use of that fiber at cost"

That's the best solution. The item that it naturally scarce is owned by the people, serviced by contractors every few years. Then we can have a real competitive market by leasing access to the network.

Comment Re:Talk about creating a demand (Score 1) 334 334

So I did the math. To store just 1 MWH of energy using a weight would require 8 thousand tons.

Check my math:

1 MWH = 1MJ x 3600s = 3.6 x 10^9J.

Energy = mass x gravity accel x height. mass = energy / (gravity x height)

mass = 3.6 * 10^9J / (9.81N/kg x 50m) = 7339450 kg = 8090 ton.

Comment Re:Progressive Fix 101 (Score 1) 622 622

Just a data point for those interested in SUVs. I've got a diesel Jeep Grand Cherokee with a great 4-wheel drive system and 7,000 lb. towing capacity. On my recent trip trip to Atlanta, I drove 620 miles mostly highway on one tank using just shy of 20 gallons of diesel. That's 31 mpg for a vehicle with true utility.

Comment Re:Billionaire saved by taxpayer (Score 1) 118 118

I wasn't referring to loan repayment. In response to your "potential for future" statement, I was referring to the ROI in terms of progress and advancement. There's no guarantee the grad student will do anything significant in return for the loan. Tesla on the other hand, already has.

Comment Re:Quality Journalimism (Score 1) 397 397

I tuned into "Rush" today for some entertainment. According to El Rushmo, the NWS is full of liberals who love crisis and government control - and so the "overreaching" forecasts were just for their pleasure.

As for the crisis part, I could only think of Fox News with its constant "ALERT" banners. Compared to the "liberal" NPR, which helps me go to sleep.

"And do you think (fop that I am) that I could be the Scarlet Pumpernickel?" -- Looney Tunes, The Scarlet Pumpernickel (1950, Chuck Jones)