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Comment: Re:Long-term, not short-term (Score 1) 172

by Spoke (#43995207) Attached to: SSDs: The New King of the Data Center?

now planning to deploy a stack of S3700 and S3500 drives.

Yep, these are the only drives I'd recommend for enterprise use - or any other use where you want to be sure that losing power will not corrupt the data on the disk thanks to actual power-loss protection.

Intel's pricing with the S3500 places it very competitively in the market - even for desktop/laptop use I would have a hard time not recommending it over other drives unless you don't care about reliability and really need maximum random write performance or really need the lowest cost.

Comment: Re:Will Tesla buy them? (Score 1) 193

The latest Prius gets 4.6 and 4.9 l/100km hwy/city, while a Jetta diesel gets 3.6/5.2 hwy/city

Where are you pulling those numbers from? At least here in the USA, in real life, on the highway at speeds of 60-80 mph, the Prius and Jetta diesel are very similar in fuel economy, despite diesel having a ~20% advantage in energy density per gallon.

Comment: Re:Will Tesla buy them? (Score 1) 193

Or a diesel.

While diesels are good for constant speed long-distance travel, they still blow for city use where fuel economy plummets and tailpipe emissions are high.

A hybrid with an atkinson cycle engine will match a diesel in long-distance travel efficiency while providing far superior city fuel economy and emissions. Not to mention that hybrids can easily be converted to a plug-in hybrid either drastically reducing or eliminating gasoline usage for most of your local driving while still being very fuel efficient for long trips.

Comment: Re:Will Tesla buy them? (Score 2) 193

Exactly. For 800 km/day (500 miles), your typical gas car will need to be fueled anywhere from 1-2 times depending on the car (typical gas cars might go 200-450 miles between fillups). Typical fuel stop might take 15 minutes at best assuming you also need to stop, use the restroom, grab a drink/snack, etc. A Model S with 200 miles range between SuperChargers will also need to be filled 2 times - but you'll need about 90 minutes of charging, or about 60-75 minutes longer than a gas car.

A 500 mile trip, you may travel 70 mph while on the road, so lets say 7 hours of driving. The gas car might take about 7.5 hours including stops at best, a Tesla might take up to 8.5 hours.

Is that extra hour hour or so going to kill that occasional trip? Highly doubtful, but if it is, I suggest that a plug-in hybrid like the Chevy Volt might be a much better fit for that type of use.

Comment: Re:Texas, North Carolina Fighting Tesla's Dist Mod (Score 3, Interesting) 446

by Spoke (#43798955) Attached to: Tesla Motors Repays $465M Government Loan 9 Years Early

I especially take offense with this argument:

"When manufacturers discontinue a brand -- such as Pontiac, Mercury, Oldsmobile or Saturn -- auto dealers still remain to help the customer,"

In reality, if Tesla were to go out of business, individual mechanics would open shop assuming there was a business demand. If there wasn't any demand, then it wouldn't matter if the sale originally involved a dealer or not. (Unless said former-dealer was unclear on the concept of business.)

Exactly. The dealer model hasn't exactly helped Fisker any - while all the dealers remain, they all want exorbitant amounts of money to do any work on the vehicle. And an independent group has surfaced offering support for the vehicles regardless - but of course, you still have to pay.

Now you have the result of owners having paid thousands more because of the extra middle man - and certainly the extra middle man didn't help Fisker's profitability any, either.

Comment: Re:Cost Per Lumen? BS! (Score 1) 308

by Spoke (#43538351) Attached to: Cause of LED Efficiency Droop Finally Revealed

I went down every aisle with light bulbs on it and didn't find them, so if they can pick it off the shelf, they'll be doing quite well.

I found in the last two Home Depots I visited the CREE bulbs were not with the rest of the bulbs. They were in their own display in front of one of the rows not far from the rest of the bulbs.

It's crazy - they ought to keep at least a few with the rest of the bulbs because people looking specifically for bulbs expect to find them there, not in a special display designed to catch the eye of people not looking for bulbs.

Comment: Re:Cost Per Lumen? BS! (Score 1) 308

by Spoke (#43536865) Attached to: Cause of LED Efficiency Droop Finally Revealed

My nearest Home Despot (Ukiah, CA) has zero Cree-branded LED lamps.

I'd really like to be able to just walk into a store and buy these things, but their availability is a myth.

I just checked Home Depot online and the site says that the Ukiah has 155 of the 9.5W / 60W equivalent Cree LED bulbs, 90 of the 40W equivalent bulbs... So you can just go in and buy one. You can even pay for it online and they'll pick it off the shelf for you and have it ready for you when you get there.

Comment: Re:Cost Per Lumen? BS! (Score 1) 308

by Spoke (#43536811) Attached to: Cause of LED Efficiency Droop Finally Revealed

As much as I love CREE LEDs in general, I prefer Philips 10.5-watt bulb. The bulb itself it more aesthetically pleasing (in my opinion) and it diffuses the light better (the CREE focuses all the bulbs in one area and its very apparent from the very bright spot in the middle). I own six of them. Home Depot sells them for $27.97 for a two pack.

Are we talking about the same CREE LED bulbs?

I bought two of the new CREE bulbs, a 40W and 60W equivalent and the light distribution is very even, though if you look at the bulb it is slightly dim at the top. While I haven't tried the 10.5W Philips bulb you linked to, it looks like it would be darker than normal at the bottom of the bulb.

Now the Philips L-Prize bulb is awesome in performance - even more efficient than the other bulbs mentioned above industry leading CRI and light distribution - but it's even funnier looking at the funny looking Philips bulb you linked to above. The L-Prize bulb initially sold for $35-45 each. The price has been cut to $15 now at Home Depot, but they generally have very low quantities of these now, it's very apparent that the normal looking Cree at a lower price is killing it in sales.

Comment: Re:Someone should do this coal power (Score 1) 482

by Spoke (#43185401) Attached to: Windfarm Sickness Spreads By Word of Mouth

The real point is that while Nuclear can work for the baseline load on the grid, current designs simply aren't nimble enough to meet the peaks and valleys they would face in normal day to day operation. They need to be complimented with some other power source that is more nimble.

The main reason Nukes run as baseload is that the incremental cost of running the plant is very low - fuel costs are negligible in comparison to the value of electricity they generate.

But you are correct in that they aren't generally designed to be able to ramp up/down with load. Natural gas plants are really the only fuel-powered plants that are good at this. Part of that is the design, but also the incremental cost to generate is directly relative to the cost of natural gas which historically has been expensive so one generally does not want to run a gas plant any more than necessary.

Comment: A123 Horribly Mismanaged - Threw away $200M (Score 2, Informative) 183

by Spoke (#42244321) Attached to: Chinese Firm Wins Bid For US-Backed Battery Maker

I am really horribly surprised that this isn't mentioned more.

Just 4 months ago Wanxiang offered $450M for 80% of A123. Now Wanxiang got it for $260M. A123 lost it's creditors quite a large chunk of money and now Wanxiang gets control of A123 debt free.

http://insideevs.com/wanxiang-takes-control-of-a123-again-as-it-wins-bankruptcy-auction/

A123 has been horribly mismanaged from the start. People have been clamoring for their cells for years - but they wouldn't sell to anyone but OEMs - so many people took to disassembling packs from drills or more recently buying them off the grey market (eBay).

Their batteries are very good, but they have been plagued by bad business decisions and some bad luck (like the big batch of defective cells they sold to Fiskar costing $55M to replace).

I would have rather seen A123 tech been bought by JCI rather than Wanxiang - I can only hope that they are able to sort out A123s problems and finally get their product to market successfully.

Comment: Re:Hundreds? (Score 1) 212

by Spoke (#41710119) Attached to: Standard For Electric Car Charging Announced

swapping an electric car battery isn't possible in reality? Thanks for enlightening the world with your clearly superior intellectual abilities.

If only these people were as smart as you...

I guess you hadn't heard - Better Place is basically done. It may have limited success for fleet applications (like taxis) where a 2 minute battery swap is critical, but for the mass market where no two cars are alike and neither are the battery packs, storing enough packs and the additional complexity of building and running a battery swap stations kill any chance of cost effectiveness.

For the price of one battery swap station, you could install a hundred quick charge stations.

Comment: Re:Hundreds? (Score 1) 212

by Spoke (#41710077) Attached to: Standard For Electric Car Charging Announced

Or if you buy a Nissan Versa, the exact same car but with a gas engine...

The Versa and LEAF are nothing alike in terms of quality. While the LEAF is based on a highly modified version of the same chassis as the Versa, that's about it.

Basically the leaf will actually be worth owning after you have owned it for 13 years and have had ZERO maintenance costs.

You know, there are other reasons besides purely financial ones to buy an electric car...

Comment: Re:Great Opportunity (Score 1) 212

by Spoke (#41710017) Attached to: Standard For Electric Car Charging Announced

How about co-locating car charging stations at solar power farms, and skipping the DC-AC conversion equipment. It is a win-win.

It's not that simple. Tesla will be installing their own DC quick charge stations with solar PV carports, but the solar will be grid tied and completely independent from the Superchargers (what Tesla is calling their DC quick charger).

Solar PV inverters are around 95% efficient at converting DC to AC - a well designed AC to DC converter is about the same which means you do lose about 10% in the conversion process. But then it means that any time the PV system is generating more than is being used to charge cars, the energy goes straight to the grid without having to worry about regulating energy flow from the array and to the grid as necessary.

Comment: Re:Incorporates previous designs (Score 1) 212

by Spoke (#41709891) Attached to: Standard For Electric Car Charging Announced

The grandparent is right. These J1772 DC plugs will not be useful on a car which only implements J1772 AC charging. This new big bulky plug is only good for high speed DC quick charging. The standard J1772 plug is good for 120-240VAC and up to 80A charging.

The primarily reason for this abomination of a plug is the reduced foot print so that 2 completely separate sockets (see Nissan LEAF and Mitsubishi iMiEV) are required.

One of the most overlooked advantages to computers is... If they do foul up, there's no law against whacking them around a little. -- Joe Martin

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