mbender
Posts: 824
Joined: Sun Apr 21, 2013 8:11 am
Delivery Date: 31 Aug 2014
Leaf Number: 309606
Location: The Great California Delta, and environs

ubitricity, charging via street light (posts)

Tue Oct 07, 2014 11:53 am

I'm not sure I completely understand the "contract" part of this new approach to charging, but I hope the concept (if not ubitricity itself) makes its way to the U.S. It would be a big first step in bringing street-side charging to many "urbanites" and others without designated parking spots &or electric sockets tied to their residence.

Via cleantechnica (via The ECO Report):
Ubitricity Can Cut EV Charging System Costs "90%"
I think I just felt my paradigm shift.

2012 SL (One of the colors): 2-year lease, 2012+,
2015 S w/QC (A different color): 3-year lease, 2014+,
2017 SV (Same color as 2015 S): 3-year lease, 2017+, lower monthly than either above(!)

apvbguy
Posts: 1403
Joined: Tue Apr 09, 2013 1:34 pm
Delivery Date: 10 Apr 2013
Location: Jacksonville FL.

Re: ubitricity, charging via street light (posts)

Tue Oct 07, 2014 12:11 pm

many homeless already tap into the street lighting in some cities, other than it being only 110 volt and concerns about power usage there really is no reason this wouldn't be viable with minor modifications to the infrastructure. In the US people don't carry their evse with them, in europe most people do.
WARNING This post may contain material offensive to those who lack wit, humor, common sense and/or supporting factual or anecdotal evidence. All statements may be subject to literary devices not limited to: irony, metaphor, allusion and dripping sarcasm

User avatar
TomT
Posts: 10565
Joined: Sun Aug 08, 2010 12:09 pm
Delivery Date: 01 Mar 2011
Leaf Number: 000360
Location: Foothills of Granada Hills, CA
Contact: Website

Re: ubitricity, charging via street light (posts)

Tue Oct 07, 2014 1:01 pm

Many street lighting systems are 240 or 480 volt... A number of people in L.A. have been electrocuted over the years trying to tap in to their systems...

apvbguy wrote:many homeless already tap into the street lighting in some cities
Last edited by TomT on Tue Oct 07, 2014 1:57 pm, edited 1 time in total.
59,991 miles/12 bars/289 Gids/68.54 AHr/101% SOH/101.64% Hx 7May15 w/ new Lizard (barely made the warranty).
71,770 miles/12 bars/256 Gids/59.04 AHr/88% SOH/87.92% Hx 3Mar16 at lease return.

Now driving a 2016 Volt Premier. Model 3 reserved.

apvbguy
Posts: 1403
Joined: Tue Apr 09, 2013 1:34 pm
Delivery Date: 10 Apr 2013
Location: Jacksonville FL.

Re: ubitricity, charging via street light (posts)

Tue Oct 07, 2014 1:05 pm

TomT wrote:Many street lighting systems are 240 or 480 volt... A number of people in L.A. have been electrocuted over the years terrifying to tap in to their system...

apvbguy wrote:many homeless already tap into the street lighting in some cities

that could be true, but I bet those higher volt ones aren't "regular" street lights. in NYC the common street lights aren't 240, in fact you'll find nema 5-15 outlets in almost every base.
WARNING This post may contain material offensive to those who lack wit, humor, common sense and/or supporting factual or anecdotal evidence. All statements may be subject to literary devices not limited to: irony, metaphor, allusion and dripping sarcasm

User avatar
Randy
Moderator
Posts: 2061
Joined: Thu Apr 22, 2010 12:29 pm
Delivery Date: 04 Jan 2011
Leaf Number: 0191
Location: San Diego, CA

Re: ubitricity, charging via street light (posts)

Tue Oct 07, 2014 2:06 pm

In our city, there is very little metering infrastructure in place for street lights. There is a payment agreement between the city and utility based on the number of fixtures and the forecasted dusk to dawn usage on an annual basis.

In addition, there are not separate circuits feeding each fixture / pole, so it wouldn't take too many cars plugging in before the infrastructure would be overloaded...It was never really designed for that purpose...

johnrhansen
Posts: 1100
Joined: Mon Aug 12, 2013 7:23 pm
Delivery Date: 15 Jun 2013
Leaf Number: 409445
Location: Seattle, WA

Re: ubitricity, charging via street light (posts)

Tue Oct 07, 2014 2:44 pm

Most industrial lights are one leg of 480v 3 phase. 277 volts. Pretty close to level 2 voltage.
2013 S model with quick charge package.
AV 30 amp level 2 EVSE, Bosch PowerMax 30 Amp EVSE, EVSE upgraded EVSE.

User avatar
EVDRIVER
Posts: 5875
Joined: Sat Apr 24, 2010 7:51 am

Re: ubitricity, charging via street light (posts)

Tue Oct 07, 2014 4:11 pm

apvbguy wrote:
TomT wrote:Many street lighting systems are 240 or 480 volt... A number of people in L.A. have been electrocuted over the years terrifying to tap in to their system...

apvbguy wrote:many homeless already tap into the street lighting in some cities

that could be true, but I bet those higher volt ones aren't "regular" street lights. in NYC the common street lights aren't 240, in fact you'll find nema 5-15 outlets in almost every base.



Most street lights are 240V, because there is a 120V outlet that does not mean it is not 240V, the ones on my small residential street are all 240V. And many, many US drivers carry an EVSE with them.

User avatar
TomT
Posts: 10565
Joined: Sun Aug 08, 2010 12:09 pm
Delivery Date: 01 Mar 2011
Leaf Number: 000360
Location: Foothills of Granada Hills, CA
Contact: Website

Re: ubitricity, charging via street light (posts)

Tue Oct 07, 2014 8:59 pm

Street lights pull very little compared to even a 120 volt EVSE... A number of vehicles plugged in could very quickly overwhelm the system.

EVDRIVER wrote:Most street lights are 240V, because there is a 120V outlet that does not mean it is not 240V, the ones on my small residential street are all 240V. And many, many US drivers carry an EVSE with them.
59,991 miles/12 bars/289 Gids/68.54 AHr/101% SOH/101.64% Hx 7May15 w/ new Lizard (barely made the warranty).
71,770 miles/12 bars/256 Gids/59.04 AHr/88% SOH/87.92% Hx 3Mar16 at lease return.

Now driving a 2016 Volt Premier. Model 3 reserved.

BrockWI
Posts: 571
Joined: Fri Mar 28, 2014 6:28 am
Delivery Date: 28 Mar 2014
Leaf Number: 423875
Location: Green Bay, WI.
Contact: Website

Re: ubitricity, charging via street light (posts)

Wed Oct 08, 2014 6:39 am

On our campus here this was brought up during one of our EVSE meeting. Our campus head electrician stated two things. One our street lights are indeed 480vac, even if we did a step down transformer, each street light circuit is rated about 4000w above what the street lights actually pull. On the flip side they are currently changing our street lights from 175w low sodium to 110w induction. The 110w induction fixtures are nice and white compared to the sodium and even though have a slightly lower lumen output appear much brighter. Even with the the reduction in overall load it doesn't give us enough room to add EV charging on the street lights with a step down. Maybe one or two 120vac 20 amp outlets per string with a step down. We concluded it would be less expensive to install two level 2 stations with 4 more 120vac spots flanking them.

I suspect this is a similar situation across the US, they would put in the minimum wire to power the street lights and nothing else to save on transformer and wiring cost .
3 kw solar pv - XW6048 - 8 L16's
4 ton GSHP
2003 VW TDI 170k miles - 52 mpg lifetime
evse level 2 - Clipper Creek HSC-40
2013 S model with QC package Mar of 2013

Return to “EVSE / Charging Equipment and Networks”