#evproject

Plug-in cars are being delivered at long last. Yet there remains confusion about the necessary infrastructure and its expense. Electric Vehicle Service Equipment (EVSE) home wall units are priced at between about $1000 and $2500. Plus installation. Need it cost this much? Is it as complex and time-consuming a process as has been experienced by many new owners of plug-in cars?

All plug-in cars these days come with a 120-volt charge cord. This will actually be sufficient for many if not most Volt drivers, and quite a few LEAF drivers. An empty Volt pack will take 10 hours to fully recharge; an empty LEAF about 20 hours. That may seem like a long time, but the relevant questions are: How long will the car be sitting anyway? Until the next morning or just an hour or two? How full is the battery when it gets parked? And where are you going next?

For most folks most of the time, chances are the battery isn’t near empty when it gets plugged in, perhaps at work, perhaps at home after work. Recharge time will usually be much less than what it takes to go from empty to full.

And the cost to the consumer to enable the 120V cordset? If you’ve already got a grounded 120V outlet in the garage or carport, zero. If you need to put an outlet in a convenient place, it would likely cost about $100.

Surprising to many, including I suspect Tesla Motors itself, they found that about half the charging of Roadsters at home in the U.S. is at 120V. Despite the fact that it takes 38-60 hours to charge a Tesla from empty to full at 120V. One can’t presume the peculiarities of a Roadster tell us too much about plug-in cars with much less range, but I think we shouldn’t write off 120V charging just yet, as many involved in readying infrastructure for EVs would have us do. The cord that comes with the car just might suffice for many, especially plug-in hybrids which have smaller battery packs.

Still it remains true that most will want the ability to charge their car at a faster clip at least some of the time, which is what 240V charging stations provide. With the 16 amp charger both cars have today (the actual charger is located in the car, not the box on the wall,) a 240V EVSE takes about four hours to fill an empty Volt pack. It takes about seven hours to fill a near empty LEAF, ensuring a complete charge overnight. If a complete overnight charge is the goal, 120V will still suffice for a Volt, but a 240V EVSE will be essential for most who buy an all-electric car.

Nissan and GM have each had their preferred provider for home charge stations in an attempt to streamline the process, but many customers have had complaints about the cost and scheduling. Dozens of manufacturers seem to be selling equipment at a range of prices, but few actually are available now. The situation for new owners has also been complicated by the various government infrastructure programs, including the DOE-funded EV Project (Ecotality) and ChargePoint America (Coulomb,) which have differing requirements and benefits depending on one's vehicle and location. If eligible, most people accept a free 240V charge station, of course, as I did. My installation was pretty simple, so it cost me nothing. But government support for infrastructure won’t last forever. Coulomb and Ecotality sometime soon won’t be able to leverage taxpayer money to keep other manufacturers at a disadvantage. Quite likely not beyond the current programs.

I am pleased to participate in the EV Project, which came late to the San Francisco Bay Area, and happy to get my tax-payer funded charger and DC Fast port. I believe in government support for electric vehicles (and many other things also on the congressional chopping block at the moment.)

However, for the last month my Blink has been on the blink. Something about firmware, they said. An email on June 8th said they’d get back in touch to schedule a visit. As I write on July 13th I’ve recently been contacted by the contractor who installed the unit, but I’m still waiting for the service call. However, I remain unconcerned. Not because I always charge at 120V mind you. Rather, because I’ve had the 120V cordset provided with the car upgraded to 240V. EVSEupgrade.com offers the upgrade, which allows the Volt or LEAF to charge at their maximum 240V capability of 16 amps. Cost of upgrade: under $300. (For this to work in place of a wall-mounted unit, you still need a dedicated 240V 30 amp circuit and outlet, which would cost a few hundred dollars of an electrician’s time and perhaps $50 in parts.)

The point isn’t simply to plug the good folks at EVSEupgrade.com, although I’m happy to do it. They’ve kept my LEAF juiced, after all. Something Ecotality couldn’t do even with $100 million in federal grant money.

I am not alone in my concern that there is some level of unnecessary complication, excessive cost, and unhelpful mystification going on around electric vehicle infrastructure. It isn’t helpful to the “cause,” those picking up their new plug-in cars or those who are considering it.

I wrote back in December about my unhappy experience attempting to charge my loaner LEAF at San Francisco City Hall's electric car charging stations. Parking in these Coulomb charge stations is restricted to city-owned vehicles and Car Share companies under threat of towing. A threat taken seriously in San Francisco.

I wrangled a few hours of charging back in December from Bob Hayden, the SF Department of the Environment's EV Czar. And I wrangled time again while Tom Dowling and I met more recently with Bob at the SFDOE (this time to charge my own, recently delivered LEAF.)

But one shouldn't have to know Bob to plug in your new car. It's city, state and federal policy to enable electric cars for the emissions and petroleum reduction they provide. I'd hoped the City would find a way to open up the opportunity for the people beginning to obtain plug-in cars to more freely use these rare, public charge stations. Publicly plugging in is an act of coming out, of civic responsibility. Plugging in to public charge stations is part of the process of introducing Americans to electric cars.

Unfortunately there are still damn few J-plugs (the new standard for plug-in cars) publicly deployed, despite the expectations created by the federal grants to the EVProject (Ecotality) and ChargePoint America (Coulomb) and ex-Mayor Newsom here in San Francisco. The situation is similarly bleak in Southern California. And the fact is that the cars, however slowly, are being delivered. San Francisco's Department of the Environment just received its first LEAF, which now uses one of these spaces. It sits over the weekend, long since fully charged, demonstrating the city's greenness, I suppose, while preventing anyone from using the charge station. Making one spot available over the weekend would be one way to demonstrate a commitment to public access to this publicly funded infrastructure.

Here in San Francisco there are three sites (6 J-plugs) listed on Coulomb's/ChargePoint America's/MyChargePoint.net website, including the three at City Hall. At one you pay for parking and for plugging in, one is free, and one is restricted. In fact, there is another pair of J-plugs I know of in the Hilton's garage on Kearny St., but since they aren't Coulomb product, they aren't listed. Problem #1, Who's going to aggregate this information to be useful for drivers?

Problem #2: It needs to be noted (especially by new drivers) that the electrons don't just flow from many of these public J-plugs when you plug into the car as they do for the previous generation - EV1s and RAV4 EVs. They need to be activated with a phone call, a Coulomb card (one-time $10 per card), or in some cases a credit card. For a while, the electricity will be free with a phone call or Coulomb card, but eventually - probably sooner rather than later - there will be a cost to charge at many charge stations.

There is a cost to charging. Take that every way it can be taken. What I want to focus on is the unintended consequences of near-term monetization of public charging. Only half the story about public charging is providing juice: enabling drivers to extend the range of their vehicles beyond their night-time "fill-up" at home when necessary and overcoming newbie "range anxiety." The other half, for the next five years or so, is outreach and education. An opportunity to demonstrate to the 99+% who have no experience with plug-in cars that the cars are real. "There one is," says Mr. Jones to Mrs. Jones as they walk pass one plugged in at the shopping mall. And if the Joneses ever wondered about electric cars, they just might get to ask the owner some questions.

Monetize that charge station during the first few years the cars are appearing, and we lose 90% of the opportunities to talk with Mr. and Mrs. Jones. Here's what's going to happen: You get your new LEAF or Volt. A charge station appears at the grocery store you frequent. You plug it in, but nothing happens. You see the credit card symbols. If you happen to have a chip-enabled credit card (I have no idea how prevalent they are), you wave it. Juice flows. A small crowd gathers. You answer questions about the car. This is exciting. But after getting the monthly bill, you decide to forgo the recurring $2 charge for 50 cents of electricity you didn't need anyway. And maybe you'd begun to tire just a little of the attention.

Now that your new plug-in car is parked discretely with the gas burners, what happens to the charge station? It waits patiently for someone to really need it. And everyone entering the store passes the empty space, the "charger" standing sentry inconveniencing the "real" cars while suggesting government waste on another failed project.

Near-term monetization also threatens needed expansion of charging infrastructure, as the early installations become underutilized. It is already ironic enough that the two companies pushing monetization as the necessary component for a successful rollout of public charging infrastructure have taken the lion’s share of the public funding in order to develop their “free market” solution. It would be doubly ironic if low usage caused by early monetization resulted in insignificant amounts of revenue suggesting a poorer profitability picture than projected creating an impediment to necessary further expansion of both public charging stations and their own business.

The federal funding should have come with strings attached. For a certain period, say two to five years, the electricity should just flow. No connecting to a network, no payment. The host - the city parking garage or shopping mall - would agree to cover the cost of electricity in exchange for the charging unit and all the green cred and good will they can muster. After a few years, with lots of experience, let the hosts decide if they want to monetize. At that point hopefully there will be enough plug-in cars around that they will no longer be a novelty needing explaining, and we will actually want to discourage purely opportunistic public charging to ensure their availability when someone really needs the juice. At that point, we'll all be willing to pay.