Re: [EVDL] Solar Road in France
Interesting article, the first time I heard about Solar Road it was an experiment that the Dutch did with putting solar cells under a bike path. BTW, I expect that the village already had electrified street lighting (not still running gas lamps, to be lit every evening, like 100 years ago) but that they want the solar road to balance the power consumption of that street lighting. BTW, I see a lot of efficient LED street lights these days, which helps cities to cut down on their power bill. Cor van de Water Chief Scientist Proxim Wireless office +1 408 383 7626Skype: cor_van_de_water XoIP +31 87 784 1130private: cvandewater.info http://www.proxim.com This email message (including any attachments) contains confidential and proprietary information of Proxim Wireless Corporation. If you received this message in error, please delete it and notify the sender. Any unauthorized use, disclosure, distribution, or copying of any part of this message is prohibited. -Original Message- From: EV [mailto:ev-boun...@lists.evdl.org] On Behalf Of ken via EV Sent: Thursday, January 12, 2017 8:43 PM To: Electric Vehicle Discussion List Subject: [EVDL] Solar Road in France France's Minister of Environment Ségolène Royal has officially opened the world's first solar road this week with one kilometer and 2,880 solar panels in Tourouvre-au-Perche. Now the country is waiting to see if the road, built with construction company Colas' Wattway technology, will live up to the hype surrounding the clean energy experiment. The road is designed to produce sufficient power to electrify street lighting in the 3,400-person village. http://inhabitat.com/france-officially-opens-worlds-first-solar-panel-road/ ___ UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub http://lists.evdl.org/listinfo.cgi/ev-evdl.org Read EVAngel's EV News at http://evdl.org/evln/ Please discuss EV drag racing at NEDRA (http://groups.yahoo.com/group/NEDRA) ___ UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub http://lists.evdl.org/listinfo.cgi/ev-evdl.org Read EVAngel's EV News at http://evdl.org/evln/ Please discuss EV drag racing at NEDRA (http://groups.yahoo.com/group/NEDRA)
[EVDL] Solar Road in France
France’s Minister of Environment Ségolène Royal has officially opened the world’s first solar road this week with one kilometer and 2,880 solar panels in Tourouvre-au-Perche. Now the country is waiting to see if the road, built with construction company Colas‘ Wattway technology, will live up to the hype surrounding the clean energy experiment. The road is designed to produce sufficient power to electrify street lighting in the 3,400-person village. http://inhabitat.com/france-officially-opens-worlds-first-solar-panel-road/ ___ UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub http://lists.evdl.org/listinfo.cgi/ev-evdl.org Read EVAngel's EV News at http://evdl.org/evln/ Please discuss EV drag racing at NEDRA (http://groups.yahoo.com/group/NEDRA)
[EVDL] Delivered 579 Bolt EVs : EVLN: EV-newswire posts for 20170112
David sez >Bolt's first delivery was on 13 December<
That is 30 days ago, and GM said their Sonic-ice/Bolt-EV manufacturing line
(& crew) can produce 100 Bolt EVs per day. So potentially, that would be
3000 Bolts that could have been made?
Well no. Lets assume, the crew works 5 days a week. In the above 30 days of
4 weeks (1 week off for the holidays), that is 20 days of 100 Bolt EVs each,
or 2000.
I have read many, many Bolt EV news items, and only a few have had enough
meat to warrant posting to the evdl. Still during these slow news days while
our world is being over turned with donald's nominations taking over ...
[OT warning: An Exxon oil rep as Russia's Manchurian candidate for
Sec-o-state?
https://www.google.com/search?q=nomination+Exxon+oil%2FRussia%27s+Manchurian+candidate
https://www.google.com/search?q=Rex+Tillerson+electric+vehicles
(he's anti-EV)
/OT]
... in a news item (likely I'll post soon, as I do not want to saturate the
evdl with one type of EV), it said, the GM crew does not build Bolt EVs each
day (lets assume, 50% of their time is Sonic-ice, and 50% Bolt EV). That
would at best cut that 2000 to 1000 Bolt EVs in those 20 days.
Also, the Dec 13 deliveries were to GM dealers in CA and OR. No one seems to
be saying how many Bolt EVs were delivered to Lyft, political-favorites,
etc. Lets say Lyft took a good size chunk of the Bolt EVs that the crew
made.
So, 579 Bolt EVs delivered to CA& OR dealerships isn't really isn't out of
the question if the above assumptions were close to true. I am not saying
the Bolt crew has been lax (they may have had parts shortages, rework
changes, etc.).
But in another Bolt EV item I will be posting, GM's current view is to be
conservative (leave the consumer hungry for Bolt EVs) rather than trying to
satisfy consumer demand like Tesla is working hard to do.
GM is still a totally different beast than the benevolence they portray
themselves to be in the media.
At least GM is producing Bolt EVs far better than Honda produced their
'hand-made' Fit EVs (very slow in getting in the hands of the consumer).
David sez >GM advertise the Corvette on television?<
I found a couple of corvette ads:
https://www.youtube.com/watch?v=MdO65DR7Z5g
2016 Corvette Dream Giveaway® TV Commercial
Dream Giveaway Jul 4, 2016
Enter to win two Corvettes when you make a small donation to help charity.
Win a 1965 Sting Ray Convertible plus a 2016 Lingenfelter Signature #001
Corvette and $50,000 towards taxes!
https://www.youtube.com/watch?v=m6CMW9OZ220
2016 Corvette Stingray Commercial Spot
Paul Glinski Sep 28, 2015
Corvette Stingray Commercial Spot
Directed and Produced by Paul Glinski
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Re: [EVDL] EVLN: EV-newswire posts for 20170112
On 12 Jan 2017 at 3:09, brucedp5 via EV wrote: > Chevrolet Delivered 579 Bolt EVs In December 2016 The Bolt's first delivery was on 13 December. So if we extrapolate those sales to the entire month, that would be 997 cars. They're just flying out the doors, folks! To put this in perspective, in December, Tesla sold 9,725 total Model S and Model X, and Nissan sold 1899 Leaves. The Volt did quite well too, shifting 3691 copies. Of course part of the problem is that GM is offering the Bolt in only two states. You'd almost think they didn't really want to sell them, wouldn't you? Na, impossible. :-\ A little more perspective: in December, GM sold 2709 Corvettes in the US. That doesn't include sales in other countries, but I'd be surprised if they sold many of them elsewhere in the world. Does GM advertise the Corvette on television? (Serious question: I don't know, I never watch.) If not, where DO they advertise it? (Presumably where there's a high concentration of demographically-predictable potential Corvette buyers.) And where do you think GM should advertise the Bolt? David Roden - Akron, Ohio, USA EVDL Administrator = = = = = = = = = = = = = = = = = = = = = = = = = = = = = EVDL Information: http://www.evdl.org/help/ = = = = = = = = = = = = = = = = = = = = = = = = = = = = = Note: mail sent to "evpost" and "etpost" addresses will not reach me. To send a private message, please obtain my email address from the webpage http://www.evdl.org/help/ . = = = = = = = = = = = = = = = = = = = = = = = = = = = = = ___ UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub http://lists.evdl.org/listinfo.cgi/ev-evdl.org Read EVAngel's EV News at http://evdl.org/evln/ Please discuss EV drag racing at NEDRA (http://groups.yahoo.com/group/NEDRA)
Re: [EVDL] Curtis 1231c - Diode ratings / temp gains
On 01/12/2017 12:00 AM, Lee Hart wrote: Jay Summet via EV wrote: I have been researching replacement parts for my Curtis 1231c power board a lot tonight. All of the parts and numbers are listed at this blog post: https://www.summet.com/blog/2017/01/11/curtis-1231c-replacement-power-board-components/ I believe I will be able to upgrade the diodes to 600V 75A with the DIOTEC 7506R. Don't go by the ratings advertised on the front of a data sheet. They are usually absolute maximums. The part would soon fail if used at these limits. Look *inside* the data sheet for the test conditions. For example, that "75 amp" diode says it has a 1.35v typical voltage drop at 75 amps. That's 75 x 1.35 = 101.25 watts of heat. Now look at the thermal resistance from junction to case. It is 0.8 deg.C/watt. Therefore, the junction temperature rises 0.8 deg.C for every watt of power dissipation. 0.8 x 101.25 = 81 deg.C. Although I haven't found a datasheet for the existing diodes in my unit, if they are similar to others Curtis used I think they are around 24A maximum rating. So I doubt I'll ever need to use all 75A of the absolute maximum ratings of the new diodes. I cruse down the road at 100-200 motor amps, and with 18 diodes, that's under 11.1 amps per diode. I believe that would be an average thermal dissipation needed of 15 watts, (0.8 * 15 = 12 degrees C junction to case difference). The real question is when I punch it up to 500-800 amps (44 amps per diode) for a few seconds from a dead stop, how long it takes to get back down to average temp after dissipating 60 watts, or a 48 degree C rise. Capacitance does not matter. What matters is the capacitor's ESR (as low as possible) and its voltage rating (at least 25% more than the maximum voltage you ever expect it to see). Electrolytic capacitors have the shortest life of any part in the controller. As capacitors age, their ESR goes up, and their voltage rating goes down. At some point, one or the other of these gets bad enough, and the capacitor fails. Sounds like a good argument for paying the $140 to replace them with new ones. The new ones I'm looking at have the same tangent angle of loss (dissipation factor) which is derived from ESR and capacitance as the ones in there now, but a 250 volt rating instead of 200. I'm also considering a 250 volt 110A MOSFET (IXTH110N25T) to get the MOSFET and capacitor max voltages both up to 250. There is also a marketing "ratings game" with MOSFET specs. You have to read the data sheet pretty closely to see what they can really do. It's hard to be sure what part is better just from the data sheet. Yes, I'm generally just over-engineering the heck out of the parts and never hoping to reach their absolute maximum ratings. Cost is also something I'll need to look at eventually. Given the Curtis design, the on-resistance of the MOSFET is important. My biggest possible gain in heat savings is by using a MOSFET with a low Rds(on). If I can adjust the current limit set (CL_MAX) and current limit adjust pots (CL_ADJ), and/or modify their resistance range with replacement components I might be able to have a lower Rds(on) AND still have current sensing cutback work correctly. (although I may lose accuracy as the voltage to sense would be smaller). I don't know if the current adjustment pots have enough range built in to deal with 1/5 of the resistance on the "shunt" or not. Seat of the pants electrical engineering: Turn them both all the way down and then see if it current limits below 500 amps or not while accelerating from a stop ;> Jay ___ UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub http://lists.evdl.org/listinfo.cgi/ev-evdl.org Read EVAngel's EV News at http://evdl.org/evln/ Please discuss EV drag racing at NEDRA (http://groups.yahoo.com/group/NEDRA)
[EVDL] EVLN: EV-newswire posts for 20170112
http://electric-vehicle-discussion-list.413529.n4.nabble.com/EVLN-CEO-Dr-Annette-Winkler-s-Smart-EV-future-td4685450.html
EVLN: CEO Dr. Annette Winkler's Smart EV future
Smart CEO talks Electric Drive, Trump, and what's next
... Daimler, is making a strong push towards electric cars. Smart
originally started out as an EV automaker ...
http://electric-vehicle-discussion-list.413529.n4.nabble.com/EVLN-Chevrolet-Delivered-579-Bolt-EVs-In-December-2016-td4685449.html
EVLN: Chevrolet Delivered 579 Bolt EVs In December 2016
… After the West Coast, the Bolt EV is expected make its way to the
Northeast and Mid-Atlantic regions, with dealers in NY, MA, and VA slated
delivered in the winter of 2017 ...
+
http://electric-vehicle-discussion-list.413529.n4.nabble.com/Woodstock-CT-to-install-5-L2-EV-charging-stations-td4685448.html
Woodstock-CT to install 5 L2 EV charging stations
WOODSTOCK - Woodstock will soon have several new electric vehicle charging
stations installed around town thanks to a pair of state renewable energy
...
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