[ref http://electric-vehicle-discussion-list.413529.n4.nabble.com/Employer-EVSE-installations-vs-near-future-trends-tp4678014.html Employer EVSE installations ... ]
>From: Chris Tromley Date: Sun, 11 Oct 2015 -Never seen a Supercharger station< The SuperEVSE closest to the Philadelphia, PA suburbs: http://api.plugshare.com/view/location/45454 (North: near Trenton, PA & Hwy 195&130) http://api.plugshare.com/view/location/12163 (South: near Newark, PA & Hwy 95) >There are some receptive ears at work and there is a substantial parking lot expansion coming up, so I convinced them to at least plan for getting some power out there. And I, being the closest thing they have to an expert on EVSE, would get back to them with my recommendations< First, I want to look at what your EVSE needs are. I will assume your iMiev has a 3kW L2 on-board charger https://en.wikipedia.org/wiki/Mitsubishi_i-MiEV And you carry along with you your portable iMiev L1 EVSE http://www.audiovideo2go.com/mitsubishi-i-miev-portable-charger/?gclid=CJ7a9sLcusgCFQMJaQodoiwP-g And you have not upgraded that L1 to also provide L2 3kW using http://evseupgrade.com/?main_page=product_info&products_id=8 EVSE Upgrade for Mitsubishi i-MiEV Some research told me of your home-work commute from 19072 to 18974 possibly via I-276 W and PA-309 S, which would make for a ~25mi 1way commute. That is near half-way on the iMiev EV's range. Looking at that area's annual weather: https://weatherspark.com/averages/31282/Philadelphia-Pennsylvania-United-States During your cold weather, your range will be less. Driving through snow, slush, and mud will also use extra energy. So are justified in making a effort to get charging at work so you will have enough energy to return home. You mentioned that it is an EVSE desert where you are, but using the free website/app plugshare.com , I found some public EVSE you could use, here are a few: http://api.plugshare.com/view/location/38117 Blink 6kW L2 $0.39 to $0.49 pkWh http://api.plugshare.com/view/location/1848 L3&2 http://api.plugshare.com/view/location/19078 L2 >my main concern - -200 mile range EVs ... will have much less need for at-work EVSE.< IMO, not necessarily. Charging at work, airport, train & bus stations, or anywhere where your EV is parked for hours should offer EVSE. >-Is there going to be a shift toward residential EVSE?< A shift? There is going to be continued growth for EVSE installations at apt., condos, and townhouses. evercharge.net , NRG EVgo, ChargePoint are a few of the businesses filling that need. The price of EVSE is also a limiting factor of how many home EVSE are installed. But I do not see this a limiting factor to having work site EVSE. Even if your company wanted to limit the power drawn to L1, it would make a significant difference in keeping employee's EVs fit to return home. >My gut tells me my employer (with a head count of around 300) should -lay power for three EVSE spots and install one, situated so two to four parking spaces can use it. Add others as/when needed. These would likely be at the back of the lot, near an outbuilding that already has power. Thoughts?< That is not a bad approach. I used google maps to look at the parking lot of your work. I will assume you have looked at where the least preferred parking spots are (way in the back, farthest to walk). >Pros and cons of different layouts (serving side-by-side spaces or one in the middle of two spaces on each side of a parking row)?< Your current parking has long rows of two cars facing each other on each side. This would allow you to install one EVSE stand in the center of four parking spaces. Your idea of running the power for several EVSE but initially only installing one EVSE head for you is a frugal approach that seems to make good business sense. Depending on the EVSE brand, adding more EVSE head units should be a simple hookup, if the power has already been run up to that point. There are two light poles in the very back of your work parking lot. At the end of the parking row between a light pole and what looks like a storage container is where the first (quad) EVSE could be located. For the future, the second (quad) EVSE would be at the end of the next parking row over closer to the second light. Initially, the trenches running over sized conduit (for pulling future additional power lines, use larger conduit than initially needed) to those locations, and the cement pad at each, along with just the one EVSE-head would be your company's initial cost. As more employee EV drivers ask for charging, it would simple to add more EVSE-heads. All the hard-work has been already done in the initial out lay, allowing additional EVSE to be incrementally installed as needed. Signage is an important part of any installation. It communicates that specific spaces are only for EV use. Very store wording with red lettering is the only way to go. Here are some example signs: http://www.teslamotorsclub.com/attachment.php?attachmentid=39554&d=1388527586 http://wamu.org/sites/wamu.org/files/styles/headline_landscape/public/images/attach/03.27.12news-gould-ev-charging-edit.jpg?itok=4lZrIdWQ http://www.stopsignsandmore.com/images/Product/large/2004.gif Signage should be clearly viable through an ice- driver's windshield (in-their-face). The sign should be mounted at about the 5 ft level. In CA, it is required to have painting on the asphalt, but of all the people I have talked to, they ignore what is on the ground and only pay attention to the no-parking/tow-away signage. You will need to spend time finding out the EV parking signage requirements for your area/state. But how long are the EVs going to be allowed to be plugged in? Already posted was about a company limiting the price to 4 hours before there is a price jump in the use-fee that makes the driver want to come out and disconnect to save money. That might be an easy thing to do where the weather is always temperate. But I will assume that is not such a great thing when the weather is cold, wet, snowy, stormy. Perhaps initially, until there are more employees that want access that EVSE, you might want to allow employees to stay plugged in for their (8hr) shift. That will simplify your initial phase of having EVSE at work, as someone (a manager?) would have to spend time over-seeing/dealing-with these issues. At sometime in the future, when there are several employees jockeying for charging, then some form of management of EVSE resources will need to be put in place. >-Charging rate - what's really needed?< This could mean two different things: The amount of power provided, or the cost of the power used. Here on the west coast housing is dense, so incredibly people commute very long distances to and from work, spending too many hours in the day driving. Whereas, your (~25mi) commute to work is close to ideal. Lets use the 80mi Leaf with a 24kWh pack as a template. It recharges off 3kW L2 in 8 hours. Half its range ~40miles is at most what owners would be arriving to work with. Charging at 3kW (208VAC 15A) would be ~10mi replenished per hour, or in 4 hours the EV would recoup its charge http://www.mynissanleaf.com/viewtopic.php?t=12752 Charging at L1 (120VAC 11A 1.3kW) about 4mi are recouped per hour of charge http://www.plugincars.com/electric-car-quick-charging-guide.html after an 8hr L1 charge, the EV would regain 32miles back. The employer needs to know the cost of the power is very cheap, and it is not like the cost of gallons of gasoline. The cost of installing a level-1 (5-20) outlet vs a 3kW level-2 (6-20) outlet is the same. The cost of wiring, outlets, breakers are about the same http://www.acdcusa.com/82205-industrial-grade-duplex-receptacle-ivory-20a-250v/?gclid=CNTj64LzusgCFVclgQodjmADcw $4 dual 6-20 (L2) receptacle http://www.westwayelectricsupply.com/co1-weatherproof-cover-rectangular-outlet-cover-single-gang.html?gclid=CKSot430usgCFQeKaQodM4ADkg $3 weather tight cover for (above) receptacle Costs go significantly go up when a 6kW or higher outlet is required. Larger wiring, costly outlets, breakers and sub-panels, etc. IMO, 3kW charging should be sufficient for the majority of EVs' needs. Higher range-capacity EVs can top off at an outside L3 EVSE on their own if they want. The cost of Electricity in Philadelphia-PA is $0.16kWh http://www.bls.gov/regions/mid-atlantic/news-release/averageenergyprices_philadelphia.htm For large power users like your company, it likely will cost less per kWh (utilities usually give large power uses a break, while residences pay a higher price). All pay-as-you-go (use-fee) EVSE should be set to a pkWh rate, and not by the hour. It is more fair for both the employer and the driver. The rate should be the cost of the Electricity, plus an additional cost to offset the initial cost outlay of the installation, and any future repairs that will be incurred. Also, the rate the employer chooses should compare (if not lower) than what nearby public EVSE is costing. Public EVSE near your work site range from $0.34pkWh to $0.49pkWh. IMO in your case, double your Electricity rate, $0.32pkWh (or $1/hr) would be fair, and would keep employees happy at work. Initially, companies have found it cheaper to let charging be free, and wait until there are more employees charging to warrant the overhead costs of payroll deductions, and management there of, etc. >-recommendations for commercial-use EVSE?< For the business that wants their j1772 EVSE as cheap as possible and do not care about logging EVSE use or having the driver pay for using the EVSE, home EVSE that is designed for outdoor use is the least costly. A Kaiser Hospital parking garage near me uses an iMiev as their security patrol vehicle. They have allocated a parking space in the back with a low cost 3kW L2 EVSE and simple do not park here signage. They do not have a way to monitor the EVSE's use or the power it uses, and they figure they save effort and money by not doing that. But most businesses end up with a bean-counting manager that wants to know how much an EVSE is being used, how much power is consumed and what time of day (because of peak power costs), and a way to redirect any EVSE use costs back to the driver (think of it as a way for their job justification). To do that (above) requires a more expensive EVSE that has use logging and a network capability to do both remote data management, and use-fee transactions. Typically this is the type of public EVSE driver find that require a rfid card to access them (Chargepoint, NRG eVgo, greenlots, semaconnect, blink, etc.). Their rfid is connected to a payment method, so that when a driver uses it there is a flow of cash via the EVSE company with money flow to the EVSE company and the owner of the EVSE (a public parking garage, a parking lot, a businesses or shopping center's parking lot, etc.). See http://a6b6a4d850da023e34c0-ffd458871468d7801be60d93d5d79b26.r30.cf2.rackcdn.com/46146.jpg Stanford Shopping Center originally had two cheap non-networked 3kW L2 EVSE in their parking structure. Later, they replaced them http://a6b6a4d850da023e34c0-ffd458871468d7801be60d93d5d79b26.r30.cf2.rackcdn.com/40196.jpg with two more expensive networked Chargepoint CT2100 6kW L2 EVSE. Now the shopping mall can monitor EVSE use and require a use-fee from drivers wanting to charge while their spend way-too-much money at expensive stores. Networked EVSE costs for both the additional hardware, and a monthly network fee the host (owner) has to pay for. If you plan for anyone and everyone to come pay to use your public EVSE the (above) networked EVSE is the way to go. But some work sites have a small amount of employees wanting to charge, and may also not want the outside public to come on their property to use their employee's EVSE. Here in Silicon Valley, High tech companies use having EVSE for their employees as a perk to keep them from wanting to leave the company (they keep valuable talent). These companies spent beau-coup on expensive EVSE and networking, yet for the employee's it is free. Security is an issue at some companies, and some non-employee trying to get a charge is not what security wants. See http://a6b6a4d850da023e34c0-ffd458871468d7801be60d93d5d79b26.r30.cf2.rackcdn.com/15297.jpg This is a view of the restricted private EVSE at Facebook site in Menlo Park, CA. If you try to use it and you do not look like you work for Facebook, security will see you on their camera, chase you down, and give you grief (its their SOP). Another way to keep drivers from using your company's EVSE is to use an off/rare brand (where no one has their rfid card). See http://a6b6a4d850da023e34c0-ffd458871468d7801be60d93d5d79b26.r30.cf2.rackcdn.com/8321.jpg This a Community College that uses GE's EVSE and network. Most drivers in that area do not carry a GE card. Also GE is different than other EVSE. Calling their toll free telephone number does not allow you to pay right then and get a charge, they want to postal mail you a rfid card after you have paid their use-fee (werid). Lastly, GE EVSE is almost as unreliable as Blink's (read the driver's comments on that plugshare listing). If you walk through the plugshare listings for your area, reading the driver's comments, you will get to know what EVSE brands have the most problems. What I have seen is blink has the most and the longest repair turn around. Next worst is semaconnect though they are better now than before (the Walmart Drug stores in your area all use semaconnect, and those seem to have less downtime issues). The major networked EVSE player in your area is Chargepoint (no surprise there). From what I understand or have seen, chargepoint EVSE hardware and their networking fees cost more than other EVSE brands. But it seems you get what you pay for (higher cost = more reliability/up-time, and support). The (above) Facebook EVSE image shows a top of the line CT4000 dual 6kW L2 coupler EVSE. This EVSE is the only one that will let you feed it with only one 6kW power feed, and it can control how the power is distributed. In that power sharing configuration, with one EV connected all 6kW power is available. If two EVs are connected, then each only get 3kW. The CT4000 can also be fed two 6kW power sources, and configured to provide 6kW to each coupler without any power sharing circuitry used (you pay more = you get more). Chargepoint has partnered with other EVSe hardware companies to allow their non-chargepoint EVSE hardware to network using Chargepoint's network. See http://www.chargepoint.com/charging-partners/ Schneider and Eaton EVSE hardware can use the Chargepoint network See http://api.plugshare.com/view/location/18843 This is another College, but they use the cheaper (than Chargepoint) Schneider EVSE on the Chargepoint network (you use your Chargepoint rfid card to turn them on). Also note their signage, see http://a6b6a4d850da023e34c0-ffd458871468d7801be60d93d5d79b26.r30.cf2.rackcdn.com/61801.jpg they too limit charging to 4 hours, but if you read the driver comments, while Schneider EVSE had no failures, they is a failure by campus security to ticket and tow-away 4+hr violators. Here is a price for Schneider EVSE: http://www.homedepot.com/p/Schneider-Electric-EVlink-30-Amp-Level-2-Outdoor-Dual-Unit-Pedestal-Electric-Vehicle-Charging-Station-EV230PDR/203404689?cm_mmc=Shopping|VF&gclid=CILQ5srNu8gCFYgCaQodhswDlg&gclsrc=aw.ds >-Indicators on the EVSE to show if charging?< Semaconnect EVSE hardware can show different colored leds to show charging, etc. Blue= available, Green= giving a charge, etc. http://www.semaconnect.com/features/ http://www.semaconnect.com/the-network/for-ev-drivers/ http://www.semaconnect.com/applications/corporations/ Semaconnect can use plugshare's payment via smartphone method: http://pay.plugshare.com/ http://faq.plugshare.com/article/5-how-do-i-pay See this plugshare listing http://api.plugshare.com/view/location/43109 that shows two semaconnect EVSE hardware with two different status colors http://a6b6a4d850da023e34c0-ffd458871468d7801be60d93d5d79b26.r30.cf2.rackcdn.com/43320.jpg (read the driver comments on that plugshare listing). >-Do any of these have a network connection to email the EV-driver employees? What are the little details of living with EVSE that can be optimized with a little forethought?< Yes, some EVSE networks offer a way via an app to either text or email you an alert or allow you access to know the status of your charge, etc.: https://www.facebook.com/notes/nissan-electric/helpful-apps-for-ev-owners/343146259057411 Many of these apps are mainly focused to access plugshare data, only some of these offer access to know your SOC: http://appcrawlr.com/ios-apps/best-apps-ev-charging https://na.chargepoint.com/driver_faq http://www.blinknetwork.com/mobile.html Here is an interesting item in your area. A non-major EVSE network brand Greenlots using Eaton EVSE hardware. See http://greenlots.com/Sky-network/#chargingstations http://greenlots.com/Sky-network/ Here is a price for Eaton EVSE: https://www.google.com/search?q=eaton+evse&biw=1024&bih=626&tbm=shop&source=lnms&sa=X&ved=0CAcQ_AUoAWoVChMIufKT7Mu7yAIVCo0NCh3_9AKj&dpr=1#q=eaton+evse&tbs=vw:l,mr:1,price:1,ppr_min:2000,p_ord:p&tbm=shop See: http://api.plugshare.com/view/location/13117 Trolley Car Diner Greenlots EVSE on plugshare http://a6b6a4d850da023e34c0-ffd458871468d7801be60d93d5d79b26.r30.cf2.rackcdn.com/81934.jpg Eaton EVSE shown http://a6b6a4d850da023e34c0-ffd458871468d7801be60d93d5d79b26.r30.cf2.rackcdn.com/49553.jpg Here is an iMiev using Eaton EVSE on Greenlots' network at $2/hr for a charge. $2per hour at 3kWh translates to $0.66pkWh (not cheap). If your EV can charge at 6kW, then it is more affordable at $0.33pkWh. NRG eVgo is not big your area, see http://www.nrgevgo.com/find-a-station I only found one plugshare listing near you. See http://www.nrgevgo.com/tag/nissan-leaf/ QUAKER BRIDGE MALL OPENS NRG EVgo Nor did I find an eVgo app like you asked for that shows your SOC or give alerts. Here is an EVSE network guide, but it is dated from 2014: http://www.plugincars.com/ultimate-guide-electric-car-charging-networks-126530.html In doing all of this research to answer your questions, I came across a different approach to work site EVSE. EVSE company AeroVironment has their TurboDock product which builds on their Turbocord EVSE (a cheaper portable EVSE that runs off either L1 120VAC 1.3kW or L2 3kW). See http://www.evsolutions.com/turbocord BTW, if your company decides to initially go super cheap and not install a j1772 EVSE head, and only give you the less costly solution I mentioned above (a 6-20 duplex outlet separately wired to offer two separate L2 3kW outlets for two EVs to use), you could buy a Turbocord EVSE and use it at work for a faster and better charge than your portable L2 EVSE that came with your iMiev EV. Back to TurboDock, see http://www.evsolutions.com/turbodock TurboDock EVSE can provide either L2 3kW or it can be set to provide L1. It is configurable via a Bluetooth4 connection from a smartphone. It does not use an EVSE network. Instead it lets a business set the TurboDock EVSE to either: -require an employee's individual 4 digit pin code -require a 4 digit pin that will work on any of the TurboDock EVSE you have (one pin works on all) -or you can set the TurboDock to open that does not require a pin. You can start with dual pedestal TurboDock EVSE and add more ports later as the number of EV drivers increase. Below links show the cost of a two, three, and four EVSE purchase. Buying the quad (4) model is cheaper in the long run: http://www.homedepot.com/p/TurboDock-20-ft-16-Amp-120-240-Volt-Commercial-Workplace-EV-Charging-Stations-with-Dual-Wall-Mount-20088-020-Dual-Wall-Mount/205875327?cm_mmc=Shopping|VF&gclid=CLbQ1aDQu8gCFQEMaQodVt4F4Q&gclsrc=aw.ds ~$3.1k AeroVironment TurboDock commercial/workplace 3kW L2 or L1 dual (2) EVSE (Bluetooth 4.0 Phone controlled) http://www.homedepot.com/p/TurboDock-20-ft-16-Amp-120-240-Volt-Commercial-Workplace-EV-Charging-Stations-with-Triple-Pedestal-20088-020-Triple-Ped/205875336?cm_mmc=Shopping|VF&gclid=CJz58KvSu8gCFZSCaQodOBAFXA&gclsrc=aw.ds ~$4.4k TurboDock triple (3) EVSE http://www.homedepot.com/p/TurboDock-20-ft-16-Amp-120-240-Volt-Commercial-Workplace-EV-Charging-Stations-with-Quad-Pedestal-20088-020-Quad-Ped/205875337?cm_mmc=Shopping|VF&gclid=CJnSmO3Qu8gCFQUFaQodfZwHzg&gclsrc=aw.ds ~$5.7k TurboDock quad (4) EVSE Here are the app for TurboDock: https://play.google.com/store/apps/details?id=com.aerovironment.turbodockaccesscontrol https://itunes.apple.com/us/app/turbodock/id947588432?mt=8 I suggest you view the video below: [video https://youtu.be/T_EZJA9rTMU Turbodock: Introducing Our New Workplace and Commercial EV Charging Station AeroVironment Inc. Subscribe620 Aug 25, 2015 Find out about TurboDock, an innovative workplace and commercial EV charging station designed by AeroVironment's EV Solutions Team, the makers of TurboCord. If you'd like to have EV charging stations installed at your workplace, get in touch with us at http://turbodock.com or http://evsolutions.com TurboDock is a low cost workplace and commercial electric vehicle charging station with Bluetooth enabled access control. Now you can easily control access to your charging stations right from your smartphone. TurboDock's modular nature gives you the option to mount up to 4 chargers per pedestal and up to 2 chargers per wall-mount. It also allows you to conveniently expand the number of chargers over a period of time. TurboDock is sized perfectly for recharging Plug-In Hybrids and EVs in less than 4 hours at Level 2 16amps /240VAC optimizing your electrical service. It can also be configured to charge at Level 1 120VAC 1.3kW, if you desire. TurboDock is configurable to provide simple access control however you want. You can give a universal access code to all users or an individual access code per user. Or you can leave TurboDock for open access. With the app, you can easily switch between Access Control and Open Access at the flick of a button. Finally, TurboDock is upgrade-able so next generation software can easily be downloaded through the smartphone app. ] Here are some more EVSE to explore: https://www.google.com/?gws_rd=ssl#tbm=shop&q=evse%20charger&tbs=vw%3Al%2Cmr%3A1%2Cprice%3A1%2Cppr_min%3A2000%2Cppr_max%3A&spd=0 % Time to not blow my horn, but pull it out and show it before I put it away again % Some may know I have a keen interest in charging. So much so, after taking advantage of my (hp) work policy (set up by the founders), allowing me to request access to outlets to charge my own EV at work. Here is my second work place EVSE (outlets) installation at the Sunnyvale site (now sold-off/defunct), see: http://brucedp.150m.com/history/bruce_parmenter04.jpg My first EVSE installation at work was at the Cupertino site: also sold-off, to Apple and ripped out for their new space-ship style building where Apple is working on their Auton-EV). I got permission from Corporate to represent the company by making work-place charging presentations at other companies and at other public functions (spreading the EV-cause), see http://brucedp.150m.com/history/bruce_parmenter10.jpg Those were pre-Internet days, so presentations used color laser-jet printed overhead slides/transparencies. Later a couple of co-workers let me get some photos of them and my EV to use as car-kittens to turn ice-head's minds around (those were pre-NEDRA.com days): http://brucedp.tripod.com/blazer/blazer92-01o.jpg http://brucedp.150m.com/history/bruce_parmenter02.jpg Later, I dropped even more money on my EV, to update my pack configuration, and add six chargers to up my charging capability to 22kW, see http://brucedp.tripod.com/blazer/012a.jpg Now I could use whatever power that available and push my range distance far beyond most conversions at that time (there were no production EVs at that time). Here is a shot of my updated blazer EV showing SF's Golden Gate bridge in the background as I attended a SF Presidio EVent, see http://brucedp.150m.com/history/bruce_parmenter05.jpg My work site charge allowed me to have a visiting EV park and charge at my work site space, http://brucedp.150m.com/history/bruce_parmenter08.jpg MaryAnn Chapman's EcoElectric Desert Lightning e-Truck Note: MaryAnn Chapman along with Clare Bell should both be added to the list of EV pioneers. Read the Aug 1996 paper issue of EAA Current EVents scanned as a .pdf http://www.econogics.com/ev/EAA/Old_CE_Issues/Current_EVents_199608.pdf Before their was wireless access to the Internet on phones and tablets, I used a binder of printed slides to help educate the public http://brucedp.150m.com/history/brucedp-at-sfpeaar9710.jpg That picture shows me Evangelizing at a SF EAA Chapter EVent, trying to impress and keep the attention of those youngsters (which might be the EV drivers of today). OK, time to put my EVangel horn away :-zzz For EVLN EV-newswire posts use: http://evdl.org/evln/ {brucedp.150m.com} -- View this message in context: http://electric-vehicle-discussion-list.413529.n4.nabble.com/Employer-EVSE-installations-vs-near-future-trends-tp4678014p4678027.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)
