Re: [EVDL] EVLN: Improving an EV’s Cabin Heating System
brucedp5 via EV wrote: http://www.hybridcars.com/wp-content/uploads/2015/11/Slide11.jpg (schematic) Tesla patent shows waste heat from the drive motor and electronics being used to heat the cabin I did this way back in the 1970's. There should be a description of my system on the EVDL archives. The 1970's CitiCar also used waste heat from the motor for the windshield defroster. The result? As a practical matter, there is so little waste heat from an EV's motor and controller that it's hardly worth the bother. If the car takes 10kw to cruise down the road, and its motor is 90% efficient, you only have 1kw of waste heat. And, that's low-quality heat... the temperature is only a little above the outside ambient. I found it was better to use the mass of the batteries as a "heat flywheel". During charging, warm the batteries with heaters and the waste heat from charging. During driving, transfer this heat to the cabin. That cools the batteries; but they are so massive that they don't lose enough temperature to matter in (say) a 1-hour commute to work. My EV had 14 golf cart batteries (1000 lbs) in a 2" styrafoam box. Air ducts let me circulate air through the battery box, then a cabin heater, into the cabin, and then back into the battery box. The motor could also be ducted in, but the smell produced by the brushes was annoying, and it didn't add enough heat to bother with. The article also confuses the peak load needed to warm up a cold car (6kw) with the much lower average load needed to hold it at temperature (1-2kw). Since an EV would normally be plugged in when parked to recharge, it makes more sense to pre-heat the car with AC power, while it is still plugged in. Then you only need 1-2kw to hold it at temperature while driving. Another thing: We've learned to insulate our homes, and plug leaks to keep down the outrageous heating and cooling costs. But cars still have virtually no insulation, and leak air like a sieve. It takes more power to heat/cool a normal car than for a small house! This was tolerable with ICEs, where you had vast amounts of "free" waste heat and huge excesses of horsepower to run air conditioners. But so far, the auto company's EVs are built the same way... no insulation, lots of air leaks. -- Humanity is acquiring all the right technology for all the wrong reasons. -- R. Buckminster Fuller -- Lee Hart, 814 8th Ave N, Sartell MN 56377, www.sunrise-ev.com ___ 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] EVLN: Improving an EV's Cabin Heating System
At about this time, the electric heaters came on in my EV, while I am setting here typing this. I have three AC heaters, one 500 watt hot water heater for the existing heater core, a 640 watt driver side cab heater and a 840 watt passenger side cab heater. Today, because the temperature is only 30 degrees, the 640 watt comes on. I have a on dash transfer switch that can select between commercial power or on board power using a 5 kw DC to AC inverter. If I want heating while the EV is in the drive mode, than the power comes from a rotating inverter-alternator that puts out both 13.5 to 16 volts DC and 110 VDC 7Kw which is inverted to 120 VAC 60 cycles 5kw. This unit also acts like a REGEN braking to slow down the EV on steep icy hills. Roland - Original Message - From: Lee Hart via EV<mailto:ev@lists.evdl.org> To: Electric Vehicle Discussion List<mailto:ev@lists.evdl.org> Sent: Wednesday, December 02, 2015 7:49 AM Subject: Re: [EVDL] EVLN: Improving an EVâ?Ts Cabin Heating System brucedp5 via EV wrote: > http://www.hybridcars.com/wp-content/uploads/2015/11/Slide11.jpg<http://www.hybridcars.com/wp-content/uploads/2015/11/Slide11.jpg> > (schematic) Tesla patent shows waste heat from the drive motor and > electronics being used to heat the cabin I did this way back in the 1970's. There should be a description of my system on the EVDL archives. The 1970's CitiCar also used waste heat from the motor for the windshield defroster. The result? As a practical matter, there is so little waste heat from an EV's motor and controller that it's hardly worth the bother. If the car takes 10kw to cruise down the road, and its motor is 90% efficient, you only have 1kw of waste heat. And, that's low-quality heat... the temperature is only a little above the outside ambient. I found it was better to use the mass of the batteries as a "heat flywheel". During charging, warm the batteries with heaters and the waste heat from charging. During driving, transfer this heat to the cabin. That cools the batteries; but they are so massive that they don't lose enough temperature to matter in (say) a 1-hour commute to work. My EV had 14 golf cart batteries (1000 lbs) in a 2" styrafoam box. Air ducts let me circulate air through the battery box, then a cabin heater, into the cabin, and then back into the battery box. The motor could also be ducted in, but the smell produced by the brushes was annoying, and it didn't add enough heat to bother with. The article also confuses the peak load needed to warm up a cold car (6kw) with the much lower average load needed to hold it at temperature (1-2kw). Since an EV would normally be plugged in when parked to recharge, it makes more sense to pre-heat the car with AC power, while it is still plugged in. Then you only need 1-2kw to hold it at temperature while driving. Another thing: We've learned to insulate our homes, and plug leaks to keep down the outrageous heating and cooling costs. But cars still have virtually no insulation, and leak air like a sieve. It takes more power to heat/cool a normal car than for a small house! This was tolerable with ICEs, where you had vast amounts of "free" waste heat and huge excesses of horsepower to run air conditioners. But so far, the auto company's EVs are built the same way... no insulation, lots of air leaks. -- Humanity is acquiring all the right technology for all the wrong reasons. -- R. Buckminster Fuller -- Lee Hart, 814 8th Ave N, Sartell MN 56377, www.sunrise-ev.com<http://www.sunrise-ev.com/> ___ UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub<http://www.evdl.org/help/index.html#usub> http://lists.evdl.org/listinfo.cgi/ev-evdl.org<http://lists.evdl.org/listinfo.cgi/ev-evdl.org> Read EVAngel's EV News at http://evdl.org/evln/<http://evdl.org/evln/> Please discuss EV drag racing at NEDRA (http://groups.yahoo.com/group/NEDRA<http://groups.yahoo.com/group/NEDRA>) -- next part -- An HTML attachment was scrubbed... URL: <http://lists.evdl.org/private.cgi/ev-evdl.org/attachments/20151202/f6d65958/attachment.htm> ___ 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] EVLN: Improving an EV’s Cabin Heating System
I have a bit over 20 patents, and my experience is pretty much in agreement with Lee's assessment. The USPTO only does a cursory search of prior art. As a result, a patent is just a ticket to permit litigation. Whether or not it is valid is not determined until the litigation is over. Also, according to US patent law, a disclosure must be enabling, meaning it provides enough detail that one "skilled in the art" could reproduce the work. Many do not meet this requirement nor the requirement that it should not be obvious to one skilled in the art. In reality, it only is required to be non-obvious to attorneys and judges. -- View this message in context: http://electric-vehicle-discussion-list.413529.n4.nabble.com/Re-EVLN-Improving-an-EV-s-Cabin-Heating-System-tp4678994p4678998.html Sent from the Electric Vehicle Discussion List mailing list archive at Nabble.com. ___ 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] EVLN: Improving an EV’s Cabin Heating System
EVDL Administrator via EV wrote: Didn't the EV1 have a heat pump system pretty much identical to this? If so, how can Tesla patent it? First, you can always get a "design" patent. This is like patenting not the wheel itself; but your particular design of it (with, for example, square spokes instead of round spokes). Second, modern patents are so obscurely worded, and patent examiners are so far behind that they often only give a cursory glance to what the patent says. So people can make outrageous claims that are glaringly obvious, or have already been patented a dozen times, and the patent examiner never notices. -- Humanity is acquiring all the right technology for all the wrong reasons. -- R. Buckminster Fuller -- Lee Hart, 814 8th Ave N, Sartell MN 56377, www.sunrise-ev.com ___ 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] Electric Snowblower Conversion / evalum
http://evalbum.com/3628 ___ 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] Electric Snowblower Conversion
Of all the links that came up from a simple web search
https://www.google.com/search?q=Electric+Snowblower+Conversion
I liked the one from a Canadian
http://www.gizmag.com/snowpig-home-built-electric-vehicle/25912/
Snowpig: Golf cart gets pimped into an electric snow-blower
January 23, 2013
Its large, enclosed for a confortable ride, and looks like it can handle
routine heavy duty work.
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[EVDL] EVLN: $200-$1.4k UAE Electric-bicycles have a 80km Twizy range
http://7days.ae/e-bike-firm-uae-charge
E-bike firm in the UAE on the charge
November 29, 2015 Sarwat Nasir
[images
http://1sqg7i1t88eg2h9w3nqndud1.wpengine.netdna-cdn.com/wp-content/uploads/2015/11/Fahad-Hareb-Saoud-Khoory-and-Ali-Al-Madani.jpg
The Ebikes UAE team with one of their models
http://1sqg7i1t88eg2h9w3nqndud1.wpengine.netdna-cdn.com/wp-content/uploads/2015/11/Ebikes_White_Ariel_Rider-1.jpg
The price of the bikes, which come in five models, range from Dhs700 to
Dhs42,000
]
What’s got two wheels, pedals and a motor and can travel the same distance
as an electric car? An e-bike, that’s what. And a trio of Emirati friends,
who design, make and sell electronic bikes in the UAE, believe their
motorised bicycles are the next big thing and could help you get across the
city.
The group started their business 12 months ago after spotting what they
thought was a gap in the market. Fast forward 12 months and the founders of
Ebikes UAE say they have sold 80 bikes, and the trend is on the rise.
Co-founder Ali Al Madani told 7DAYS: “At first, we bought our own bikes, but
one of the other founders, who’s an engineer, bought a regular bike and made
it electric. He added a motor to it and improved the speed.
“After that, we knew that it was the start of a business. We started
assembling our own bikes, adding motors to them and customising them. So
far, we have sold 80 but the sales are picking up.”
The price of the bikes, which come in five models, range from Dhs700 to
Dhs42,000. They can travel the same distance – 80km – as a two-seater
Renault Twizy electric car, which retails at Dhs69,000, on a single charge.
And, unlike an electric car, all is not lost if you run out of power.
However, as they are classified as bicycles, there is no need for a licence.
Al Madani said people can use the bikes to travel around neighbourhoods,
parks and bicycle tracks.
“They’re 100 per cent electric. They can go up to 80km with one charge,” he
said. “Electric bikes are a very new trend.”
However, he says that unlike other electronics fads, such as motorised
scooter boards, there is a health benefit to the bikes.
“We have different models,” he said.
“Some of them, you can chose if you want to pedal, but we also think about
people’s health, so, in one of the models you have to pedal to boost the
motor. They’re very different to the scooter boards, as the battery life can
last longer and it travels faster.”
[© 7days.ae]
...
http://ebikesuae.com/
EBIKESUAE Electric-bicycles
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[EVDL] EVLN: Customized Tesla EVs Thank Their Vets> recruitment for vet-hiring
http://www.greencarreports.com/news/1101107_custom-tesla-model-x-thanks-companys-veterans-model-s-too
Custom Tesla Model X Thanks Company's Veterans, Model S Too
Nov 26, 2015 John Voelcker
[images / George Parrott
http://images.thecarconnection.com/lrg/tesla-model-x-veterans-recruitment-vehicle_100536843_l.jpg
Tesla Model X veterans recruitment vehicle
http://images.thecarconnection.com/lrg/tesla-model-x-veterans-recruitment-vehicle_100536841_l.jpg
http://images.thecarconnection.com/lrg/tesla-model-x-veterans-recruitment-vehicle_100536842_l.jpg
http://images.thecarconnection.com/lrg/tesla-model-x-veterans-recruitment-vehicle_100536840_l.jpg
http://images.thecarconnection.com/lrg/tesla-model-x-veterans-recruitment-vehicle_100536839_l.jpg
]
Seeing a Tesla Model X electric SUV on the roads at all is still a rare
occurrence; seeing one in flat black is even rarer.
That's because there's only one that looks like the Model X in these photos,
snapped at a Supercharger site 10 days ago by our Tesla-owning author George
Parrott.
After chatting with the two gents in the photo, he learned more about the
unusual Model X--and its role in promoting the company's outreach to
military veterans.
While Tesla Motors doesn't widely publicize these efforts, it now has two
different electric cars whose role is to appear at various public events to
draw attention to its interest in recruiting veterans as employees.
The newest is this Model X, decked out in full military trim, right down to
the fake rivets and an American flag embossed into the hood.
Parrott spoke with the two proud, smiling Tesla employees whose job is to
move the car among events in California and elsewhere.
Both are veterans who work in the company's assembly plant in Fremont,
California.
Both had previously worked at the New United Motor Manufacturing Inc.
(NUMMI) joint venture between General Motors and Toyota, which closed in
2010 following the GM bankruptcy and government-backed restructuring.
Toyota sold that plant to Tesla Motors the same year, providing the startup
with a state-of-the-art manufacturing facility less than 20 miles from its
Palo Alto headquarters at minimal cost.
Tesla's Alexis Georgeson elaborated on the company's veteran-recruitment
efforts in reply to an e-mail from Green Car Reports.
We are hiring veterans as part of our efforts to hire the best and most
exceptional talent in the world. Veterans are a wonderful fit at Tesla
because of the advanced technical, electrical and mechanical skills they
learn while in the service.
They also bring integrity, discipline, teamwork and leadership skills that
fit well in the Tesla environment, where we challenge employees to think
creatively and to work hard toward our mission to transform transportation.
Our military recruiting efforts are building momentum with veteran numbers
averaging 6 percent of our U.S. employee population.
Georgeson also provided photos of the earlier Tesla Model S car, also in
flat black with military logos and decorative elements, that fulfills the
same mission: promoting the company's #TeslaVets efforts.
We commend the company's outreach and aggressive hiring of U.S. military
veterans--something we can all be thankful for.
[© greencarreports.com]
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Re: [EVDL] EVLN: Improving an EV’s Cabin Heating System
Didn't the EV1 have a heat pump system pretty much identical to this? If so, how can Tesla patent it? 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)
[EVDL] Grenching-Theives stole L1-EVSE from 500e @parent's Folsom-CA home (v)
http://fox40.com/2015/11/27/single-mothers-holiday-spirit-restored-one-day-after-her-electric-car-charger-is-stolen/
Single Mother’s Holiday Spirit Restored One Day After Her Electric Car
Charger is Stolen
November 27, 2015 Sara Zendehnam
FOLSOM -- A Thanksgiving thief in Folsom ruined one struggling single moms
holiday spirit, but complete strangers are helping restore that.
Sammantha Mello woke up Friday morning to find the electric car charger for
her Fiat was gone. It was stolen from right in front of her parents home on
Van Winkle Court in Folsom.
"I was disappointed, then I was upset," she said.
The single mom has a lot of expenses for her 3-year-old daughter Emily, and
the nearly $400 replacement charger isn't in her budget.
She thought she had to choose between buying Emily Christmas presents or
paying for a new charger until strangers on Facebook saw her story and
decided to spread a little holiday cheer. In just 20 minutes, Mello's
GoFundMe account had surpassed the $385 goal to replace the charger.
Folsom resident Dawn Grove donated to the cause and said, "To see people
pitch in, and want to give to others, makes me want to keep that love
tornado going."
Mello said she couldn't be more grateful for her community.
"It was more than I could have asked for, and it definitely turned the
Christmas spirit around."
The Folsom Police Department said thieves targeting electric car chargers
isn't something they've heard of, but suspects likely resell things like
that. As technology changes so does the focus of criminals.
[© fox40.com 2015 KTXL]
...
[video
https://www.youtube.com/watch?v=vaawaN3ttTk
Single Mother’s Holiday Spirit Restored One Day After Her Electric Car
Charger is Stolen
Krystal Floyd Nov 28, 2015
FOLSOM --A Thanksgiving thief in Folsom ruined one struggling single moms
holiday spirit, but complete strangers are helping restore that.
Sammantha Mello woke up Friday morning to find the electric car charger for
her Fiat was gone. It was stolen from right in front of her parents home on
Van Winkle Court in Folsom.
]
...
https://www.gofundme.com/jpc8fm3g
Replacement for stolen car charger
November 27, 2015 Sammy Mello
https://2dbdd5116ffa30a49aa8-c03f075f8191fb4e60e74b907071aee8.ssl.cf1.rackcdn.com/7219163_1448647983.2801.jpg
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[EVDL] EVLN: Improving an EV’s Cabin Heating System
http://www.hybridcars.com/improving-an-evs-cabin-heating-system/
Improving an EV’s Cabin Heating System
November 26, 2015 George S. Bower
[image
http://www.hybridcars.com/wp-content/uploads/2015/11/IMG_8650-668x409.jpg
http://www.hybridcars.com/wp-content/uploads/2015/11/Slide11.jpg
(schematic) Tesla patent shows waste heat from the drive motor and
electronics being used to heat the cabin
http://www.hybridcars.com/wp-content/uploads/2015/11/Slide21.jpg
(flow chart) Simplified version of patent schematic
http://www.hybridcars.com/wp-content/uploads/2015/11/Slide31.jpg
Simplified schematic showing cabin heating using waste heat from the drive
motor and electronics
http://www.hybridcars.com/wp-content/uploads/2015/11/Slide41.jpg
Simplified schematic of the Tesla patent Refrigerant cooling loop shows no
heating mode
]
... Pure BEVs on the other hand don’t have this source of waste heat and so
they must rely on the battery as a source of energy for heating. Using the
battery for heating lowers the range. In extremely cold environments, we
could see as much as a 50-percent loss in range for a battery electric car.
That’s a big disadvantage.
The early Nissan Leafs (pre 2013) used resistive heating. Resistive heating
is probably the most inefficient way to heat the cabin. In 2013 the Leaf
incorporated a more energy efficient heat pump and this mitigated the effect
on range in cold weather. When operating in electric mode the Volt’s cabin
heating is purely resistive so the Volt loses significant range in cold
weather if the ICE does not run. The second-generation Chevrolet Volt also
retains just pure resistive heating in EV mode.
Is there any waste heat floating around in a BEV that could be used for
cabin heating?
Yes there is. It is waste heat from the electronics and from the traction
motor.
Tesla has a patent on just such a system. The schematic from the patent
describing the system is shown below.
The patent shows four separate cooling loops. The top cooling loop is a
glycol loop that cools the drive motor and electronics. In hot weather this
loop just rejects heat to ambient from a radiator in the front of the car.
The cooling loop right below the electronics cooling loop is the cabin
heating and cooling loop. This glycol loop can cool the car via the
refrigerant loop (shown below the cabin loop) or in heating mode the cabin
cooling loop uses a resistive element for heating.
The ingenious part is that the motor/electronics loop can communicate with
the cabin heating loop via some flow control valves. With the two loops
connected, waste heat from the motor and electronics can be used to heat the
cabin with the resistive heating element used as a second source of heat.
Scavenging the waste heat lowers the load on the battery and increases
range.
A simplified version of the Tesla patent in “waste heat cabin heating mode”
is presented in the figure below.
Could this patent be what is used in the production Tesla Model S?
We don’t have positive information from Tesla itself, however based the
following write up in the Tesla Motor Club it appears that this patent
probably is used in the production Model S.
Insert blockquote:
The Model S cabin heater has two (hidden) modes. If the drive train is
cold, all heat comes via resistive heaters, which can draw up to about 6 kW.
That’s a lot of power.
As you drive the car, the drive train will naturally heat up. Once that
happens, Model S uses the drive train coolant to help heat the cabin.
Essentially it takes waste heat from the motor and inverter and uses that to
heat the cabin. This makes a huge difference to the power consumption – a
fully warmed-up car will only need 1-2 kW to keep the cabin warm even in
extreme cold conditions. In comparison, the original Tesla Roadster needs 4
kW to keep its tiny cabin not-terribly-warm using only resistive heaters.
This is a big advantage of Model S engineering that Tesla never talks
about!”
The upshot here is that cabin heater power consumption gets better quite
dramatically after you’ve been driving for a while.
No Heat Pump?
Let’s look at a simplified sketch of the Refrigerant loop in the Tesla
patent.
There are no reversing valves shown in the Tesla patent. Also there are to
expansion bypass valves shown in the patent.
Therefore, there is no heating mode in the Refrigerant loop.
That’s the patent but does the Model S incorporate a heat pump in
production?
Again we have no direct information from Tesla but all indications from
Google search suggest that there are no reversing valves and therefore no
heating mode for the refrigeration system in the model S.
[© hybridcars.com]
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[EVDL] EVLN: In Hong Kong’s luxury car market, a Tesla is cheap
http://qz.com/559226/in-hong-kongs-luxury-car-market-a-tesla-is-cheap/ NICE SPARK In Hong Kong’s luxury car market, a Tesla is cheap [20151126] Josh Horwitz [images https://qzprod.files.wordpress.com/2015/11/tesla-hk.jpg?quality=80=all=768 Clean cars for a dirty city. (Reuters/Hannibal Hanschke) http://atlas.qz.com/charts/NkcH0XAQx (chart) Electric vehicle registrations in Hong Kong, '09-'15 (to date) / Josh Horwitz | Data: Hong Kong Transportation Department http://atlas.qz.com/charts/VyVRQEC7x (chart) Electric vehicle share of total car registrations ] Hong Kong With its narrow streets, dense population, and tiny residential spaces, Hong Kong was not built for roadsters. Yet Tesla’s distinctive Model S is doing well here. The high-end electric car is now a common sight, whether idling at traffic lights in the congested Central district, snaking up the hills to Victoria Peak, or cruising down to the beach at Shek O. Tesla, it turns out, has been getting help from the government. In an effort to curb pollution, Hong Kong heavily taxes newly registered vehicles—in many cases by more than 100% of the vehicle’s sticker price. Such taxes have been waived entirely for electric vehicles for the past 18 years. Earlier electric vehicles (EVs) that came to Hong Kong suffered sluggish sales for the same reasons they flopped elsewhere: a lack of charging infrastructure and generally low battery life. But Model S sales have shot up in the past two years in one of the most high-end car markets in the world (Hong Kong’s best-selling car in 2012 was the Mercedes E-Class). Sure, Tesla owners here are fans of the company and founder Elon Musk, Sony Wong, 40, a Tesla-owning investment company director tells Quartz. “But,” he said, “I think the critical driving force in Hong Kong is still the tax waiver.” Here’s how it breaks down: Vehicle Sticker Price (HK$) Tax (HK$) After-tax Price (HK$) Mercedes A 180 FL $314,000 $186,500 $500,500 Mercedes E 200 Premium Edition $564,000 $506,100 $1,009,500 Tesla Model S 70D $619,000 $0$619,000 Hong Kong’s tax waiver on EVs are even more generous than in Norway, where cushy incentives also helped spark a booming business for Tesla. Consumer registrations of EVs has boomed accordingly over the past two years in Hong Kong. This year alone could see more than 2,000 new plug-in cars on the road. Tesla declined to reveal sales figures for Hong Kong, citing company policy. But Charged.hk, an EV enthusiasts group, estimates that there were 2,279 EVs on the road as of June, and that 70% of them were Teslas. Electric vehicles now account for about 3% of new vehicle registrations in Hong Kong. That might seem low, but it’s high compared to other developed markets. Hong Kong’s compact size might also help drive EV sales. The Model S can travel over 400 kilometers (about 250 miles) on a single charge. That limitation might worry some drivers in larger countries, but Hong Kong has only 2,100 kilometers of total road, so “range anxiety” is less of an issue. Mark Weber-Johnson of Charged.hk says Hong Kong’s Tesla owners tend to use their cars to commute. “A lot of people have petrol cars that they use on weekends, but during the weekdays they use public transport,” he tells Quartz. “The majority of the electric car owners are doing more driving on the weekdays.” The government has provided an additional boost for Tesla (and other EV makers) with its rapid installation of public charging facilities. In 2012, the government pledged to bring total charging facilities to 1,000 by the end of June. The number has since increased to 1,200—about two EV cars per public charging stall. That’s far more stalls per vehicle than other markets like London, which has 1,300 charging spots (paywall) for about 20 times as many EVs. A high density of public charging stations helps in other ways, too. Since most Hong Kong car owners live in high-rise apartments, much of one’s charging takes place out in the open, rather than in private garages. Still, Tesla’s Hong Kong boom might be short-lived. With a population of just over 7 million, there’s only so much demand for cars. Also, the tax incentives that helped spark EV sales are set to expire in 2017, and some officials favor redacting them in order to reduce road congestion. EV sales stalled in Norway when its incentives were rolled back, and the same could happen in Hong Kong. [© qz.com] http://www.scmp.com/news/hong-kong/health-environment/article/1885096/electric-cars-rise-hong-kong-building-management Electric cars on the rise in Hong Kong but building management are failing to plug a home-charging gap 30 November, 2015 Despite one of the lowest vehicle to charger ratios worldwide, facilities are struggling to keep pace with demand for electric transportation http://cdn3.scmp.com/sites/default/files/styles/486x302/public/images/methode/2015/11/29/c25812e4-96ac-11e5-a37e-0f782d96bfb2_1280x720.jpg?itok=bf8mFPw1 ...
Re: [EVDL] Electric Snowblower Conversion
Hey Bill Bruce already mentioned my Snowpig above and it's in the evalbum - http://www.evalbum.com/4544. I built it for probably the worst winter snow clearing conditions, very wet heavy snow on a dirt road that has hills and little traction. Lots of learning experience! I found that most blower mounted tractors use a really long belt or a PTO assembly that sucks lots of horsepower. My MARS ME1003 is mounted close with a much shorter belt so the power loss is much less. Typically you can go controller less as the speed is usually close to fixed in snowblowers, just match your desired speed with pulley size. Under no load it consumes very little energy as the auger spins freely. As the snow starts hitting the auger the amps will go up. A belt is good to have as it acts like a fuse when a rock jams in the auger. I haven't had any problems with the blower motor, it works really well and barely gets warm to the touch. The motor that moves that cart I had lots of problems with last year, likely to do with how golf cart motors aren't really designed for continuous heavy duty like we had with the snow last year. Then again other roads close to me had to bring in excavators to move the 5-6ft snow drifts, it was a crazy winter last year! I already have an ammeter and digital thermometer installed in the cart for this year. As for range, more batteries are better, the weight also keeps the pressure on the drive wheels and will likely keep your snow blower from dancing around as you guide it through snow banks. I have used lots of snowblowers in the past and I find the older ones tend to be better in this area just because they weight more. Feel free to PM me if you have any questions! Cheers Dan On Wed, Dec 2, 2015 at 11:43 AM, Roland via EV <ev@lists.evdl.org> wrote: > > Hello Bill, > > > > The rated horsepower you will need, will depend on the depth and condition > of the snow. It is best to compare the hp of a electric AC snow blower to > what you may need. > > > > I am using a 3.5 hp 120 VAC 16 amps at full load blower that is 16 inches > wide and cuts 12 inches high. The snow here in Great Falls, Montana is > very lite and powdery, so it may take 8 amps or less. It takes less than a > hour to do 250 feet of sidewalk and a 30 foot driveway. > > > > Instead of dragging 50, 100 and 150 foot No. 10 AWG power cords, I been > thinking of using a AC to DC converter that we used to drive variable speed > DC motors on large exhaust fans, lathes, and drill presses. > > > > Source of supply for variable speed controls and motors that I use Is from > Dodge Power Transmission Components and Vari-Speed. Motor shops may be one > source. > > > > Roland > > > - Original Message - > > From: Bill Dennis via EV<mailto:ev@lists.evdl.org> > > To: 'Electric Vehicle Discussion List'<mailto:ev@lists.evdl.org> > > Sent: Tuesday, December 01, 2015 10:14 PM > > Subject: [EVDL] Electric Snowblower Conversion > > > > Combine a copious annual snowfall with a long steep driveway and you'll > understand why I've got such a monster of a snow blower sitting in my > garage > (30 inches wide, 24 inches high, 8 horsepower engine). I'd like to go > electric, but I've never seen an electric snow blower that large. Has > anyone ever converted a gasoline snow blower to electric? My biggest areas > of uncertainty up front are motor sizing and motor control. > > Thanks, > > Bill > > ___ > UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub< > http://www.evdl.org/help/index.html#usub> > http://lists.evdl.org/listinfo.cgi/ev-evdl.org< > http://lists.evdl.org/listinfo.cgi/ev-evdl.org> > Read EVAngel's EV News at http://evdl.org/evln/<http://evdl.org/evln/> > Please discuss EV drag racing at NEDRA ( > http://groups.yahoo.com/group/NEDRA<http://groups.yahoo.com/group/NEDRA>) > > -- next part -- > An HTML attachment was scrubbed... > URL: < > http://lists.evdl.org/private.cgi/ev-evdl.org/attachments/20151202/3e602cef/attachment.htm > > > ___ > 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) > > -- next part -- An HTML attachment was scrubbed... URL: <http://lists.evdl.org/private.cgi/ev-evdl.org/attachments/20151202/f45b966b/attachment.htm> ___ 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] EVSE for U.S. Fed. employees!
Usually the EVSE posts I make do not get much attention, but since you posted
the topic, I can respond with some related links I found (below).
I would be interested to know how the EVSE gets implemented. Whether it is
just a simple set 5-15 outlets installed in the back of a remote Gov.
employee's parking lot, or an over blown (expensive) 6kW j1772 mistakenly
installed in primo (most-wanted/front) parking spots.
I say over blown because I assume like most employee's, their EV will just
sit for many hours each work day, and a L1 or L2-3kW EVSE is only really
needed for an all day charging cycle.
http://insideevs.com/amendment-will-remove-ban-ev-charging-stations-federal-facilities/
Amendment Will Remove Ban on EV Charging Stations at Federal Facilities
Nov 2015
http://ecomento.com/2015/11/10/congress-wants-federal-agencies-to-install-electric-charging-stations-for-employees/
Congress wants federal agencies to install electric charging stations for
employees
November 10, 2015
http://www.govexec.com/federal-news/fedblog/2015/11/house-votes-make-it-easier-feds-drive-their-electric-cars-work/123422/
Why Federal Employees May Soon Want to Go Electric
Nov 4, 2015
For EVLN EV-newswire posts use:
http://evdl.org/evln/
{brucedp.150m.com}
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Re: [EVDL] Electric Snowblower Conversion
I would like to convert a walk behind snow blower too. I think a ~3500 rpm PM "pancake" motor like an Etek would be best. The "Manta" motors on Ebay are listed as 10hp, which I think would be overkill. You could buy a whole new gas blower for the price of just that motor. There are some nice heavy ~3hp PM treadmill motors, but they are all high voltage. Al On 12/2/2015 12:14 AM, Bill Dennis via EV wrote: Combine a copious annual snowfall with a long steep driveway and you'll understand why I've got such a monster of a snow blower sitting in my garage (30 inches wide, 24 inches high, 8 horsepower engine). I'd like to go electric, but I've never seen an electric snow blower that large. Has anyone ever converted a gasoline snow blower to electric? My biggest areas of uncertainty up front are motor sizing and motor control. Thanks, Bill ___ 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)
Re: [EVDL] EVSE for U.S. Fed. employees!
brucedp5 via EV wrote: I would be interested to know how the EVSE gets implemented. Whether it is just a simple set 5-15 outlets installed in the back of a remote Gov. employee's parking lot, or an over blown (expensive) 6kW j1772 mistakenly installed in primo (most-wanted/front) parking spots. http://insideevs.com/amendment-will-remove-ban-ev-charging-stations-federal-facilities/ Amendment Will Remove Ban on EV Charging Stations at Federal Facilities Nov 2015 Around here, *all* post offices have rows of 120vac 20a outlets at the back of their parking lots. They've been there for decades. They plug in the block heaters of the postal delivery vehicles so they'll start after one of our -20 deg.F Minnesota nights. No changes at all would need to be made if they had EVs. The vehicles naturally sit all night long; plenty of time to recharge even with 120vac. -- Humanity is acquiring all the right technology for all the wrong reasons. -- R. Buckminster Fuller -- Lee Hart, 814 8th Ave N, Sartell MN 56377, www.sunrise-ev.com ___ 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] 120v Charging for Fed employees!
Success! We got the wording of the new law that authorizes Federal Agencies to allow EV charging (at no taxpayer expense) to include 120v charging (and probably paying a monthly fee)! Finally!!! All we need now is the do-nothing-congress to act. Bob, WB4APR --- (A) IN GENERAL.—The Administrator of General Services may install, construct, operate, and maintain on a reimbursable basis a battery recharging station (or allow, on a reimbursable basis, the use of a 120-volt electrical receptacle for battery recharging) in a parking area that is in the custody, control, or administrative ju- risdiction of the General Services Administra- tion for the use of only privately owned vehicles of employees of the General Services Adminis- tration, tenant Federal agencies, and others who are authorized to park in such area to the extent such use by only privately owned vehicles does not interfere with or impede access to the equipment by Federal fleet vehicles. For details see Sec. 1413 (page 280) of the FAST Act, http://transportation.house.gov/uploadedfiles/fastact_xml.pdf -- next part -- An HTML attachment was scrubbed... URL: <http://lists.evdl.org/private.cgi/ev-evdl.org/attachments/20151202/879b9278/attachment.htm> ___ 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)
