Tampilkan postingan dengan label electricity. Tampilkan semua postingan
Tampilkan postingan dengan label electricity. Tampilkan semua postingan

Selasa, 11 April 2017

Product Review: ClipperCreek HCS-40p EVSE

My i3 charging from the HSC-40p. You can see my older ClipperCreek CS-40 all the way on the left.
When it comes to electric vehicle charging equipment, there’s certainly no shortage of choices. Even though it’s a relatively new market, there are dozens of manufacturers selling products that allow owners to safely and conveniently charge their electric cars. Although this equipment is commonly referred to as a "charger" or "wallbox", the proper term is actually EVSE, which stands for Electric Vehicle Supply Equipment. 

These devices don't actually charge the car; they provide the electricity to do so. That's because the actual charging equipment is built into the car. The EVSE's purpose is to safely deliver the correct amount of electricity to the onboard charging equipment. 

Now that electric cars are beginning to gain momentum in the marketplace, there are a lot of companies jockeying to get a market share of the EVSE business. The vast majority of these companies have been manufacturing and selling EVSEs for less than six years. However, there is one EVSE manufacturer that has more experience than any other company, with roots that go back into the early 1990s, as well as supplying the home charging equipment for the Tesla Roadster. ClipperCreek, has been making EV charging equipment for over twenty years now, and manufactures all of their products in the USA.

I’ve been using ClipperCreek products to charge my electric cars since 2009, as BMW choose ClipperCreek as their partner to provide the charging equipment for the MINI-E Trial Lease Program.  I’ve never had any problems with any of my ClipperCreek equipment and I still use my original CS-40 EVSE that came with my MINI-E.

However, I also have a version of the latest generation of EVSEs from ClipperCreek, an HCS-40p.  The HCS-40 & the HCS 40p can supply 32 amps at 240v, and deliver up to 7.7kW to the vehicle.  The only EVs currently on sale that can accept more than 7.7kW at 240v are the Tesla Models S & X, and the Mercedes B250e (which uses a Tesla-made onboard charger). So the HCS-40 line of EVSEs is more than powerful enough for the vast majority of today’s electric vehicles. 

For instance, my 2014 BMW i3 can only accept up to 7.2kW, and the rest of BMW’s line of PHEVs, including the i8, the X5-40e, the 330e, the 530e and the 740e, are all limited to a maximum of charging at 3.7kW. This is because plug in hybrid electric vehicles (PHEVs) have smaller batteries than full electric cars do, and thus charge quicker and don’t require such high speed charging.
ClipperCreek uses high quality connectors with a rubberized grip for added comfort when plugging in.
However, if you do want more power, for instance to future-proof your garage, ClipperCreek has you covered. They also sell the HCS-50 & HCS-50p, which both deliver 40amps of power, which translates to a maximum of 9.6kW. The HCS-60 steps up the delivery to 48 amps and a full 11.5kW. For the ultimate in home EV charging, the CS-100 can deliver 80 amps to the vehicle, which is a whopping 19.2kW.  This power delivery rivals the speed that some of the lower-powered DC Fast chargers, but currently only Tesla vehicles can accept such high a level of power from a level 2, 240v EVSE. I believe that's going to change in the coming years, and many EVs will come standard with higher power level 2 charging capabilities of at least 9.6kW.

I received my HCS-40p about a year ago and it’s lived up to the reputation that past ClipperCreek products have earned.  Made from airline-grade plastics they are probably the toughest EVSEs on the market. 

The HCS line comes in both hard-wired and plug-in models. The plug-in offerings are distinguishable by the “p” at the end of the model name. If it has the “p”, than it’s the plug in version. You can order the plug-in versions with either a NEMA 14-50 or NEMA 6-50 plug.  Therefore, you can have your electrician install the 240v you choose before you even buy the EVSE. 
Two screws & it's done!


Personally I prefer having the plug in option, which is why I got the HCS-40p. It’s a little more expensive, ($589 compared to $565 for the HSC-40) but it offers the flexibility of easy installation – you simply screw it into the wall and plug it in. Having the plug also means it’s not permanently installed in one place.  If the need arises, you can unplug it, remove the two screws and relocate it. This can also work very well if you need to take the unit to a second location, like a summer house. All you need to do is install the outlet in the second location and just take the unit there when you need to.



I test electric vehicle charging equipment and review new products, so you can see how the HCS-40 compares in size to many other EVSE options available today in the picture below. It is one of the larger packages available today, and the body of the unit is used for cable management, you simply wrap the cable around it. There is a separate connector holster included that you can locate where it’s most convenient, as well as a lock and key so you can deter someone from unplugging your car.
My "Power Wall"

ClipperCreek has an extensive list of electric vehicle charging equipment and probably offer more options than any other company. All of their Level 2, 240v EVSEs come standard with a 25 foot cable, which is optional on the products of many of their competitors. Many EVSE purchasers don't consider the cable length when they buy one. I think some may assume they all are a standard length, but that's not true. Some EVSEs come standard with a 15 or 18 foot cable, and that may come up short in certain circumstances. With a standard 25 foot cable, you are pretty much assured you can reach any point in your garage, and even outside the garage if you park close enough. 

Senin, 10 November 2014

BMW Initiates "Light and Charge" Pilot Program


It seems BMW has been busy developing new ways to charge your i3 or i8 lately. A few months ago I posted information on BMWs new low cost DC Fast charger and I just got word from an i3 owner in California that the first one is already up and will soon be ready for use at Crevier BMW in Santa Ana, California.
A member of the i3 Facebook group posted this picture from Crevier BMW. BMW's new DC fast charge station has just recently been installed there.

The latest news out of Munich is BMW's "Light the Charge" program. BMW has developed LED streetlights that also have built in charging stations. They already have a couple of them in place outside their Munich headquarters, and will soon begin installing them around the city of Munich for a pilot program. The units will be networked and allow the customer to pay with a credit card or by swiping an RFID card from a partner charging network provider. In the US, BMW's charging partner for ChargeNow is ChargePoint.
The European version of BMW's light pole charging station. In Europe, the EV driver carries the cable that plugs into their car as well as the EVSE. Here in the US, the cable is permanently tethered to the EVSE.

The obvious issue with adding charging stations to light poles is available capacity. Will the utilities have to pull new wires to accommodate the added demand or are they already over sized and can handle the additional load? In Europe the standard electrical supply is 230v so there is already more available power than we have here in the US where the basic household supply is 120v. I'd imagine most light poles here are typically 120v, but I'm not 100% certain about that. Pulling new wires and upgrading the lights could prove very costly, more so than even installing stand along charging stations, but I could see how using these on new light pole installations would work.
Charging stations on all these light poles would be great for workplace charging, airports and shopping malls.

Besides street side parking, I could also see how this approach would work well for large parking lots. Instead of having the charging stations all located in one place, which typically is a desirable location close to the buildings, they could be scattered all over the parking area, and each light pole could service the four parking spaces surrounding it.

Whether this idea comes to fruition and becomes a reality beyond the pilot program is unknown at this time, but I like that BMW is really giving thought to how they can improve public charging for their customers. The maturation of the public charging infrastructure is crucial for mass electric vehicle adoption, and I hope BMW continues to explore new ways to help make it ubiquitous.

Minggu, 27 Juli 2014

This City Car is at Home in the Country



If you listen to BMW marketing, they'll have you convinced that the only place to really experience the full benefits of the i3 is to drive it in a city environment. Pretty much every description they offer for the i3 includes how it's a car made for the Megacities of the world. Take this from the BMW i website for instance: "Electric and electrifying – the BMW i3 redefines mobililty(sic): with its visionary design and innovative BMW eDrive transmission it’s the sustainably designed vehicle for everyday urban use."

I'm definitely not saying the i3 isn't perfectly capable of negotiating the urban jungle on a daily basis. In fact, city driving is where the i3 is most efficient. Driving streetlight to streetlight, using the regenerative braking to recapture much of the energy used, since you rarely drive for long without needing to slow down, is the type of driving that will allow for better overall range.  Aside from this efficiency advantage and the fact that you usually don't need drive so far (making the limited range less of a concern) and perhaps the ease of parking the i3's tiny frame on city streets, there isn't any other advantage to driving it in the city. I've now been driving electric for over five years and have piled up about 150,000 electric miles on my MINI-E, ActiveE and i3. The crazy thing is, I live in a very rural part of New Jersey where cows and horses are part of everyday life and the bright lights of New York City are over 50 miles away. Like my previous EVs, my i3 has adjusted well to life in the country, even if this isn't the life BMW had envisioned for its carbon fiber halo car.
My MINI-E was a city country car too!

However I'm not satisfied just saying it can do fine in the country and suburbs. I believe it is indeed better suited for a life outside the city limits, so please allow me to defend that statement.

For starters, the vast majority of people who live in the suburbs and in rural areas live in private residences and the exact opposite is true for those who live in cities. Living in a private residence gives you control over your electrical supply and parking arrangements, which as you know is pretty important if you drive an electric car. You simply hang a 240v EVSE in your garage or carport and your refueling issues are mostly solved. The vast majority of electric vehicle charging occurs at home, and having the ability to install a home based EVSE where you live really simplifies things. Conversely if you live in an apartment or condo in the city, establishing a location to park and charge your car can be an enormous challenge. I have had dozens of people who live in New York City reach out to me through this blog asking for help in securing a charging location because they wanted to buy an EV. It's not impossible, but it requires a lot of work and in many cases a lot of money and persistence. Some parking garages have allowed customers to install a private EVSE and separate meter so they can pay for the electric it uses. This usually costs a couple thousand dollars and requires a lot of legwork. Other garages have allowed the person to plug into an existing 120v outlet and pay a small monthly fee for the energy which is the best solution if 120v charging will offer enough energy for the persons driving needs. In any case, it's a lot harder to recharge your car if you live in the city.

Then there is the driving experience. Of course the car drives the same in any environment, however I contend you simply cannot possibly enjoy the full benefits of an electric car while driving it in the city. I can still remember a few years ago when I was driving my MINI-E home from work one night. I own a restaurant so some nights I drive home late at night after closing and the roads by my house are desolate. This particular summer night I had the windows open and the radio was not turned up too loud. I remember hearing a squeaking sound and thinking there was a problem with the radio so I lowered it a bit but when I did the noise got louder. It was then that I realized the noise was crickets. The car was so quiet, I could hear crickets as I drove along at night as clearly as if they were sitting inside the car with me. I promptly turned the radio completely off and finished my drive home to the chorus of crickets. Five years later I still roll down the windows and turn off the radio on some summer nights, and allow the crickets to serenade me on my way home. It's about as peaceful and relaxing as anything I can imagine, and I arrive home calm, relaxed and ready for bed. Open the windows of your car in New York City at any time, day or night and you'll hear horns beeping, people yelling, sirens blaring and car engines racing. You simply cannot appreciate the quietness of an electric car in the city as much as you can in the country because there are so many other loud noises occurring constantly around you that are overwhelming your peaceful retreat to silence. In the country, crickets are about as loud as it gets.

Finally there's the energy savings. City dwellers don't drive much because everything is close so they won't realize the fuel savings as much as those who need to drive farther. I said above that I have driven 150,000 miles in the past five years with my EVs. If I had done that with a car that averaged 30 miles per gallon (which is much more efficient than the average car), I would have spent around $18,500 for gasoline. Instead my electric cars used only about $8,000 in electricity so I've pocketed about $10,500 in fuel savings. A typical person who lives in the city would have driven much less than I have and their energy savings would also be much less accordingly. In fact, most people I know who live in the city don't even own a car, as it is too expensive and just not necessary because of the extensive public transportation system.

So all that's left to discuss is the range. I suppose the main reason BMW and other manufacturers have pointed to EVs as being better suited for urban environments is because they have limited range and require longer refueling time than their internal combustion counterparts. This is a valid point and one that will prevent many people who live in rural areas where destinations tend to be farther apart from considering an EV. I'm certainly not saying that everybody today is ready to go electric or that the current electric offerings would suit the needs of everybody, but I do believe the vast majority of people could definitely integrate one into their life if they want to. The "if they wanted to" is the operative term here because going electric does require some degree of planning and range awareness. You can't just hop in the car and drive without knowing roughly how far you'll be going and the location of possible charge points just in case you need them. That is, unless you have an EV with an extraordinary range (ala Model S) or one with a range extender like my i3 REx has. By setting up charging stations in various locations along the routes that I frequently drive, I've effectively built out my own private network, but I understand the average person will not be willing or able to do that. Having the range extender there "just in case" has completely removed any concern about whether or not I can make any destination and offers that secondary level of support that many considering an electric vehicle are seeking. My previous electric cars were definitely fine for me and my life in the country. The range extender on the i3 only makes it that much better and will allow others in rural areas who may not have been as "adventurous" as I was to go electric. With long range pure EVs like the Tesla Model S and smaller battery, range-extended options like the i3 REx, the electric "Country Car" has definitely arrived.

Jumat, 04 Juli 2014

Independence Is Empowering. Go EV Now and Claim Yours!


Today's date is July 4th 2014, and here in the US the 4th of July is a national day of celebration. The 4th of July is "Independence Day" and is a federal holiday which commemorates the adoption of the Declaration of Independence on July 4, 1776, declaring our independence from the Kingdom of Great 
Britain. This was of course a great moment in America's history, and one worthy of celebration.

However for me, this date has had a dual meaning over the past five years. I too celebrate the birth of our great nation 238 years ago, but I also have a little extra to celebrate since 2009, because that's when I began driving electric.
My beloved MINI-E and me in 2009. You always remember your first...EV!
Merriam Webster defines independent as follows: "Not subject to control by others; Not requiring or relying on something else," so it's clear why this calendar day has been designated Independence Day in the US. 

I define my personal transportation energy independence as driving an electric car that is powered by sunlight which is captured on my rooftop solar array. Yes, I have a grid tied array and use net metering so I still rely on the utility to provide power when my array isn't producing. However the net benefit is I can drive as much as I want and I'm paying very little for the energy to power my home and drive my car. I am completely isolated from the extreme fluctuations of the cost of gasoline, and I'm not at the mercy of the supply chain of oil. Ask anyone who lives the EV + PV life and they'll tell you it's certainly an empowering feeling, and part of why electrics are indeed the vehicle of the future. 
Me and my second electric vehicle, the BMW ActiveE in 2012
So far I'm averaging a little over 4 miles per kWh in my i3. My solar array produces an average of about 30kWh's every day of the year. That's enough energy to power my i3 about 130 miles. Compare that to a gas car that gets 30mpg, (which is much higher than what the average car delivers) and it would need 4.3 gallons of gas to drive 120 miles. At today's gas prices that would cost about $16.00. Gas prices constantly fluctuate, and are very sensitive to any governmental instability in one of the main Oil Producing and Exporting Countries, but eventually they always go up. Conversely the sun will always be free, and electricity rates from the local utility are mostly stable. Sure, there was an initial investment for the solar array, but with my savings I'll be cash positive in about 8 years and the array's lifespan is about 30 years. 
In 2014 I'm now plugging my BMW i3 into the sun!
Plug into the sun!

So come join me in the electric revolution! Declare your independence from oil and grab a plug instead! There are many ways to generate electricity; many are from clean, renewable sources and some you can even do yourself. You can never make your own gasoline, it will never be clean, and you'll always be dependent on others to provide it to you. There are many reasons to go electric, but energy independence may just be my personal favorite. Have a happy and safe Independence Day everyone!

Senin, 26 Mei 2014

First i3 REx Road Trip: Hotels, BMW Dealerships & Wraps

Charging up at Hampton Inn in Turnersville... but for how long?
Ever since the i3 colors were announced, I had thought about doing a custom color wrap for my i3. The colors offered just weren't very inspiring and other than the Solar Orange, they were all white and shades of grey or silver. I chose the Laurel Grey because I liked how it made the car look more like one solid color. It minimized the "Black Hand" design that BMW used to try to give the appearance that the i3 is slimmer than it actually is.  It's a short car that is tall, and definitely has unusual lines and BMW believed that using black on the top surfaces would make it look less "chunky".  I also liked the idea of having a custom color so my car would be easily identifiable in pictures. I'll be writing i3 reviews for quite a few websites, and having my car a distinct color will let the readers know immediately that it's my car they are looking at.

Once I got to see my car in person I realized how much I really do like the Laurel Grey
That being said, once I got my car I realized how great the Laurel Grey looks, especially with the Frozen Blue accents and I started having second thoughts about doing the wrap. I decided to go through with it anyway because I really like the idea of having a distinctive color that no other i3 has. Plus, when I take it off it will feel like I got a new car again because the wrap protects the paint perfectly underneath. Since I'm wrapping a new car the paint will remain pristine and in a year or so when I decide to take it off I'll be able to enjoy the Laurel Grey with Frozen Blue color scheme.

After doing some research I decided to get the wrap done at Designer Wraps in Millville, NJ. It's about a 130 mile trip from my house and while there are closer wrap shops, I want to get it done somewhere that has a great reputation and has been doing wraps for a long time and Designer Wraps fit the bill. So I plotted the trip and since the wrap takes 3 or 4 days to complete, I told my wife I'd need her to drive down with me separately so I could drop off the car and we'd drive back together. The funny thing about it is she initially said, "How long will that take? Is there a charging station along the route where you can stop and charge?" She momentarily forgot I have the range extender on the i3 so she was thinking this would be an all day road trip. After driving pure EVs for five years now, she had been conditioned to think a long trip meant 80 miles or so of driving, and then four or five hours of charging in order to continue. After staring at her and smiling for a few seconds, she realized her error and we just laughed. Only two days of ownership in and the REx is immediately a game changer.

Then I realized I had also overlooked something, but not anything with regards to the car though. We were planning on driving down early on the morning of Saturday, May 24th, and that turned out to be the Saturday of Memorial Day weekend. If you live in New Jersey, you know how bad traffic is going south on the Parkway or the Turnpike during either Memorial Day or Labor Day weekends, as tens of thousands of people migrate to the Jersey Shore for these two weekends that bookend the summer. A two and a half hour drive could easily take five hours under these traffic conditions. So we came up with plan B. We would drive about 100 miles late Friday night which would get us passed the major traffic areas, stay in a hotel and continue on the next morning.

Since we would be spending the night, I figured I might as well find a hotel that would let me plug in 120v while we were there. After all, the goal is to drive on electric as much as possible, even with the REx and an overnight stay would give me enough range to make the final 40 miles or so without the REx kicking on. After making some calls, I found an Hampton Inn in Turnersville, NJ that said I could plug in and it was just about perfectly along our planned route.  The hotel was about 100 miles into the trip and we would then be 40 miles from Designer Wraps. An overnight charge would give me just enough to complete the trip the next day without the range extender. If I really wanted to, I could have probably found a hotel that was only halfway there, and tried to complete the entire trip without the REx, but then I would have needed to find a L2 240v EVSE, as overnight charging on 120v wouldn't have been enough to fully replenish an empty battery. It just wasn't worth the trouble, and if everything worked out, the 140 mile trip would end up with me using only a little more than a half a gallon of gas and without any inconvenience.

I drove nearly 90 miles before the REx came on
It was raining heavily for most of the drive there so I wasn't expecting to beat the car's predicted 75 mile electric range but I did. I was shocked when I drove 89 miles, mostly at speeds of 60 to 65 mph but occasionally faster, before the range extender turned on to hold the battery charge for the final 9 miles. There was traffic so we did occasionally drive for a while at about 50 to 55 mph and I did activate Eco Pro mode about halfway into the trip. I didn't really do so to extend my range because driving at constant highway speeds requires a certain amount of energy regardless of what mode you are in and I don't think Eco Pro will really help out much at all with this kind of driving. I really just wanted to see if there was any noticeable difference in the driving behavior and found out something very interesting that I haven't seen reported anywhere before. When driving in Eco Pro mode the car tries to keep you from driving faster than 75 mph. If you are in Eco Pro and accelerating, when you hit 75 mph the car holds at 75 mph momentarily, and in order to go faster you need to really push the accelerator further than you would normally have to in order to continue accelerating. It's kind of like the car is coaching you to not exceed 75 mph because of how inefficient it is to drive at that speed. Once you continue to push the pedal further, it realizes you really do want to go faster and it takes off with a bit of a surge. I then tried this in Eco Pro+ mode and found out it does that same thing at 55 mph in that mode. This is a nice feature to "remind" you that driving faster will consume more energy than you may want to. This only happens in Eco Pro and Eco Pro+, and not in the default Comfort driving mode.

We arrived at the Hampton Inn around 1:00am with 98.1 miles on the trip odometer, and only the last 9 with the range extender in operation. The gas gauge barely moved and looked like I only used about 1/12 of the tank. The gas gauge showed 62 miles of range remaining and if that held true, then I would have had 160 mile range total; 89 on pure electric and 71 on gas.


Plugged in at Hampton Inn
After checking in and confirming it was OK with the front desk attendant I went outside and pulled my car to the front door where there were two brand new 120V outlets, one on each side of the front entrance. I checked around the rest of the building and didn't see any other outlets that were assessable. I'd prefer not to be plugged in right in front and draw attention, but it was the only outlet available and I was able to pull over to the side and well passed the entrance so the car wasn't in anyone's way.  I got up around 7:30am and checked my app to see the state of charge and noticed the SOC was at 30% but that the car was no longer charging and had a "charging error" at 5:07am. I went out to the car and saw it was unplugged from the wall so I plugged it back in and went to the front desk to ask if there was a problem. It was a different person than when we checked in and she told me the owner came in and unplugged the car. I explained to her that I called ahead to ask if I could plug in and was told it wouldn't be a problem and that I told the person the night before that if there was indeed any problem to please call my room. I also asked if I could speak to the owner was was told no, I could not. With that I told her that I plugged the car back in and if the owner has a problem with it to please call my room as I would like to discuss this with them.

After about 15 minutes my smartphone app notified me that the car had another charging error so I went back down to try to straighten out the situation one more time. Again the car was unplugged so I went to the desk to ask to speak to the owner and again was told they are unavailable. So there was nobody that would even address the situation with me. I then very politely informed the person at the desk that I'd be contesting the charge on my credit card and refusing to pay for the one night stay as well as contacting Hampton Inn customer service. Hampton Inn boasts the "100% Hampton Guarantee" that promises "If you are not satisfied, we don't expect you to pay". Honestly, if someone would have just talked to me and given me any reason, even if it wasn't a valid reason like "Due to insurance concerns we can't let you charge" or "Other guests were complaining that you are getting free fuel but they aren't" I would have accepted it and agreed to pay my bill. While I wouldn't be happy and would likely write to Hampton Inn asking them to consider changing policy, I wouldn't have evoked the Hampton Guarantee and told them I will be writing customer service and asking to be refunded. The fact that nobody there had the decency to even talk to me about it, or call my room to explain that they needed to unplug my car tells me they don't care about offering acceptable hospitality. If you don't fit into the box of what services they expect to provide for their typical guest, then you are out of luck and they won't even discuss the issue with you, and that's very unfortunate. I understand this is new territory for many hotels, and that I shouldn't feel entitled to charge my car wherever I want to. However I did ask first and I did make it clear that if there was a problem to please call my room to discuss it with me. I would never lose my temper or get confrontational with anyone in this kind of situation. I believe the early adopters need to be ambassadors for plug in cars, paving the way for the rest and we need to do our best to educate the uninformed as to why this is indeed a better path for us all. I will certainly be in touch with Hampton Inn's customer service this week, and try to encourage them to proactively adopt a charging-friendly policy for all of their locations. So perhaps something good will come us this unfortunate incident.
Will Hampton Inn honor their guarantee? I'll find out soon
Charging at Camden County College
Realizing I didn't have enough charge to make the final 40 miles to Designer Wraps, I pulled out my phone and looked up the charging stations in the area. I found that Camden Community College was only a few miles away and they had two level 2 EVSEs. So we headed over there, found the two Blink stations, plugged in and went out for a bite to eat. After breakfast we went back to the hotel, got our belongings and went to check out. By then there was a new person at the desk and when they asked if everything during our stay was OK I told them it wasn't and explained the charging issue. She seemed a bit confused about what to do but didn't offer any help or even to get a manager so I just thanked her and informed her that we'd be contacting Hampton's customer service to take up the issue with them.

Giving a quick i3 seminar!
We headed back to get my car and when we arrived we were greeted by a security guard who was checking it out. He loved it and wanted to know all about it. After giving him the basic i3 101 lesson, we were off to complete the mission. By this time I was about 60% charged and had plenty of juice to complete the final 42 miles. The whole trip was 140 miles and I finished with a consumption rate of 4.2 mi/kWh. I dropped the car off, was told it will be ready by next weekend and headed home. I know I've only had the car three days, but I've driven it nearly 400 miles already and have loved every mile. I'm really glad I decided to get the range extender, it makes the car immensely more versatile, especially for high mileage drivers like me. I know I only needed to use it for 9 miles out of this 140 mile journey, but just knowing it's there in case I do need it will allow me to take trips I normally wouldn't have with it.
Final stats of the trip
There is one more note to make about the trip. Knowing that I would be very close to a BMW dealership while we stayed at the hotel, I contacted BMW of Turnersville the day before to see if I could plug in to their EVSE overnight so I'd be fully charged the next morning. The receptionist answered the phone and I then said this to her: "Hello. I'm going to ask you a question that I bet nobody has ever asked you before, but I promise you that will will hear it a lot in the coming months and years".  She laughed a bit and I then told her I was driving my electric BMW i3 to the area from Northern NJ and I needed to charge it. I wanted to know if I could plug into the charger at their dealership. She replied that I was correct, and nobody had ever asked her that and that she'll have to ask someone about this. She put me on hold for awhile and then another person picked up from the service department. They had no idea what I was talking about. Even after explaining that I just bought a brand new BMW i3 and that it was electric, they had no clue about the car or if they had the means to charge it there. I assume if the dealership had a charging station the service department would likely know about it, so just as I was about to say thanks anyway and hang up the person said they would transfer me to a manager. So on hold again for awhile and then the phone rang and was picked up by a voice mail system that said they were not available and to leave a message. Since I already confirmed that I could plug in at the hotel, I just hung up at that point. This is really inexcusable as far as I'm concerned. I know the i3 is a new vehicle and perhaps this particular dealership didn't even get on in stock yet, but BMW has known for four years now that these cars would be in showrooms by mid 2014. How is it that the people at this dealership weren't prepared to even answer a simply question about charging? It was as if I was speaking a different language. <Sigh> There's a lot of work to do folks.

Selasa, 06 Mei 2014

Volts For Oil: Gas Cars Burn Coal Too!




British actor and comedian Robert Llewellyn maintains a video blog called Fully Charged where he reviews electric cars and discusses all aspects of the plug-in vehicle industry. Llewellyn is an electric vehicle enthusiast and produces some really interesting and informative electric vehicle content in the series and I'm a big fan of his.

The latest topic he tackled is the "Long Tailpipe" argument which many people who do not support the switch to electric vehicles like to use in their argument against them. The Long Tailpipe argument basically states that electric vehicles are not zero emission at all, since the electricity that powers them comes from dirty sources like coal. Since EVs don't actually have tailpipe emissions, to be fair they say the real tail pipe stretches all the way to the power plant that generated its fuel, thus the long tailpipe.

There is no denying that the argument has truth to it. Much of the world's electricity is made by burning coal, and coal is dirty any way you slice it. Coal is in fact the dirtiest of all fossil fuels. When burned, it produces carbon dioxide and other emissions in flue gas. That contributes to global warming, creates acid rain, causes various respiratory illnesses and pollutes the water. However as Llewellyn shows, electric vehicles aren't the only vehicles that need electricity. Gas cars need it too, and a LOT of it in fact. Refining oil to make gasoline is an energy intensive process and the majority of energy used is - you guessed it: electricity.  

Llewellyn does a good job of explaining how much electricity is needed to refine gasoline, and that's just the refining process. He estimates that it takes 4.5kWk's of electricity to refine every gallon of gasoline. I've even seen that estimate quoted as high as 7kWh's per gallon from other sources. If you simply take the energy needed to refine the oil and put it into a battery instead of going through the whole process of refining, shipping, trucking and pumping (and the gas pumps need electric also) the stuff, you can power an EV to go 10 to 20 miles! Remember, that's just the energy used to refine the oil, nothing else. So if electric vehicle opponents want to bring up the long tailpipe argument, they then need to factor in the dirty coal emissions to every gallon of gas they burn.

However it's not as if every EV mile is powered by coal. In fact, here in the US coal fired power plants are closing all the time, and we now rely on coal for less than 40% of our electricity supply. Every year the grid gets cleaner as more renewables are introduced and outdated, polluting power plants are shuttered. This is happening as the supply chain of gasoline continues to get dirtier. How is that? That's because as we use up the current oil reserves, we are finding it harder and harder to find more. This is forcing us to use more energy to drill deeper, to go further offshore, and to even use unconventional sources like the Canadian tar sands. For example. producing one barrel of tar sands oil generates three to five times the global warming emissions that producing the same amount of conventional oil does and every day three million barrels of drinking water are used in its production. So you can see the supply chains for electricity and gasoline are moving in opposite directions. Electricity is getting cleaner, and gasoline is getting dirtier all the time.
My ActiveE and solar array. EV+PV is empowering and true zero emission driving

Plus, as the owner of an electric vehicle it is possible to make your own renewable energy to power your car. Three years ago I installed a solar array on my home and produce my own renewable energy for my EV. There is a great feeling of empowerment when you can make your own personal transportation fuel, and you know it is really zero emission driving. I've talked to many other EV owners who like me, installed a solar electric system shortly after discovering the world of electric drive. Solar powered electric vehicles are the future, we've just begun to scratch the surface of what is possible and I'm thrilled I've had the opportunity to live the future now. Anyway, back to Llewellyn's video. Take the four minutes to watch it. He does a fantastic job of explaining how gas cars are really coal powered cars too!

Rabu, 30 April 2014

How Much Does it Cost to Charge an Electric Car?



There are many reasons for considering making an electric car the next car you buy or lease. Besides the many environmental benefits, the promise of energy security, the silky-smooth driving experience with instant torque available without delay and low maintenance, one of the best characteristics of electric vehicles is how little they cost to operate. I've covered this topic here before, but this is something that really needs to be driven home. While Electric cars are currently more expensive than their conventionally-powered counterparts, the total cost of ownership over time can certainly be less, and in some cases much less.

Just as with gasoline cars some EV's are more efficient than others, but the average EV needs about 30 kWh’s of electricity to power the vehicle for 100 miles. For example, the EPA rating for the Nissan LEAF is exactly 30 kWh’s per 100 miles. A Tesla Model S 60 is rated at a combined 35 kWh’s per 100 miles and uses a little more energy since it’s heavier and more powerful than a LEAF, while the Chevy Spark EV has a combined consumption rating of 28 kWh’s per 100 miles. The BMW i3’s EPA consumption ratings haven’t been announced yet, but since the i3 is likely to be wear the “most efficient EV” crown, I expect it to be rated somewhere around 26kWh’s per 100 miles. The consumption for all electric vehicles can be viewed at the US Department of Energy’s website: www.fueleconomy.gov

According to Researchers at the University of Michigan Transportation Research Institute, the sales-weighted average fuel economy of all new vehicles sold in the United States in 2013 was 24.8 mpg. The average cost for a gallon of regular gasoline in the US over the past three years was $3.53/gallon. By using 15,000 miles as the average amount of miles a person will drive in a year, the annual cost of gasoline for the average car will be $2,135 per year, using the average cost of gasoline from 2011 through 2013.

Electricity rates vary much more than gasoline across the country, but the cost is much more stable. Unlike with gasoline, there aren’t huge spikes in electricity rates if a refinery has a problem, and neither does the price skyrocket when there is political instability in one of the large oil producing countries as we have seen lately, since all of the electricity we use in America is domestically produced. The average cost of electricity in the US is 12 cents per kWh. Therefore the average person driving an average EV 15,000 miles per year pay about $540.00 per year to charge it. As mentioned, the cost of electricity can vary greatly depending on where you live, but in order to equal the price of the average gasoline car’s fuel costs, the price of electricity would have to be four times the national average, and cost 48 cents per kWh. Nowhere in the US does electricity cost even close to that much. So the average American would save roughly $1,600 per year in fuel alone, and that's if gasoline prices remain around $3.53 per gallon. Gasoline prices do frequently spike up and down, but in the long run they always goes up. Electricity costs do eventually increase also, but not nearly at the pace of gasoline. Plus with fewer moving parts, EV's cost much less to maintain. If you combine the fuel savings with the reduced maintenance costs, it's clear to see an EV will cost you much less in the long run, even if the vehicle costs a little more up front.

Another great thing about electric cars is that you can easily reduce your electric bill by $40 to $50 per month just by being more efficient, and therefore completely eliminate your transportation fuel cost! You really can't use less gasoline unless you drive less or buy a more efficient car, but you can reduce your electricity usage at home and still drive as much as you always have. Simple measures like a programmable thermostat and the use of compact florescent or LED light bulbs can make a big difference. In fact, five 100 watt light bulbs left on continuously for a year use nearly the same amount of energy as it takes to power an electric car 15,000 miles! Here's how: five 100 watt light bulbs use 500 watts per hour. In 24 hours they use 12,000 watts or 12kWh. In 365 days they use 4,380kWh’s. A typical EV that uses 30 kWh’s for every 100 miles will use 4,500 kWh’s to drive 15,000 miles. Simply by turning unnecessary lighting off at your home, you can drastically reduce or completely eliminate your annual transportation fuel cost. Try doing that with a gasser!