SRP Electric

For many electric car owners, charging at work is a nice bonus, but not a necessity.

For others, it’s the difference between choosing an electric vehicle, and not doing so–the extra charge at work makes all the difference.

But there’s another reason charging at work is important, and it’s all to do with the electricity grid and the “duck curve”.

Chargepoint founder and CTO CEO Richard Lowenthal explains the duck curve–and the benefits of charging in the “duck’s belly” on Greentech Media.

As we all know, electricity use ebbs and flows.

Households and businesses turn on their lights and computers early in the day, leading to a small energy surge. During the day, use is pretty consistent.

But as the world goes home for the evening, lights, televisions, air conditioners, ovens and other electrical appliances are all used at once, leading to a spike in demand that energy companies must always be prepared for.

Utilities are prepared all day, of course–varying generation according to how much energy is used at peak times.

The trouble is, power stations can’t match output precisely with use–any extra use would catch out the grid and the lights would go out.

Running a power plant at lower loads is often inefficient too–they have to be producing a constant flow of energy to be working efficiently. And ideally, people need to be using this energy.

This is where the “duck curve” comes in.

Developed by the California Independent System Operator, or CAISO, it’s based on the possible future scenario where customer-sited solar panels reduce the demand of grid-sourced electricity to very low levels.

This is most likely on sunny but cool days in the spring and fall, when air conditioner usage is lower than that of mid summer, and households and businesses are drawing less power.

Energy companies would have to reduce generation to avoid producing far more electricity than is used–but still have to crank up the power towards the end of the day when people come home from work and begin using electrical appliances in huge numbers.

This is the “duck’s belly”–a deep curve of reduced generation leading into a steep climb at the end of the day–an inefficient way of generating power.

The duck curve graph shows future energy generation figures as more and more renewable energy is generated during the day–and the disparity between power generation during the day and towards the end of the day grows. The duck’s belly gets deeper.

Workplace charging could fix this scenario, by giving us a flatter duck.

That doesn’t sound great for our aquatic friend, but it’s good for generation.

Should thousands of electric vehicles plug in at work during the day, energy suppliers would need to generate more power during this period.

This reduces the “belly”, in turn reducing the “ramp” towards 8pm, and more consistent generation means greater efficiency.

It costs money to generate power, so generating it more efficiently is much better value for all parties involved–helping reduce costs for the customer.

The vehicle industry has been in a lot of turmoil the past few months with recalls here and there. Main while on the plugin vehicle side of things, we have been noticing a gradual but steady increase in sales. This; demonstrated by the Nissan Leaf which has been gaining some noticeable momentum, and the Chevrolet Volt leading for March in plug-in electric-car sales for Canada. (more…)

While February’s electric vehicle sales in Canada will have easily topped year-ago numbers, the plug-in market still faces headwinds in Canada during 2014.

British Columbia hit a milestone of 1,000 plug-in vehicle sales earlier this year. With 4.4 million people, the province has about the same population as Kentucky and represents one of every six Canadian plug-in sales. (more…)

The Ontario government launched its Electric Vehicle Incentive Program in 2009 with the aim of insuring electric cars will represent one out of every 20 cars on the road by 2020.

The program offers buyers or leasers of new electric cars varied incentives. As of July 1st, 2010, Ontario drivers are eligible to receive $5,000 to $8,500 toward their next purchase or lease of a new plug-in hybrid electric or battery electric vehicle.

The value of the incentive is based on the vehicle’s battery capacity, which ranges from $5,000 for a 4kWh battery to $8,500 for a 17kWh battery. In order to be eligible for the incentive, personal electric vehicles must be registered and plated in Ontario for a minimum of 12 months.

More information can be found by visiting the Ontario Ministry of Transportation
Ontario individuals, businesses, and organizations that purchase or lease a new plug-in hybrid electric or battery electric vehicle after July 1, 2010 may be eligible for a rebate between $5,000 and $8,500.

More Information on this program — source –:

The EV incentive program is open to persons, businesses, municipalities, non-government organizations and non-profit groups. Applicants can receive incentives for no more than five vehicles per calendar year.

Leased vehicles are eligible for an incentive depending on the term of the lease and whether the vehicle is used for personal or fleet purposes. To qualify for the full value of the incentive, a minimum 36-month lease term is required. If vehicles do not meet the specified term requirements, the incentive payment must be repaid in full.

To qualify for the incentive, EVs for personal use must be registered and plated in Ontario for a minimum of 12 months. Fleet vehicles must be registered and plated in Ontario for a minimum of 36 months to qualify for the program.

Eligible electric vehicles purchased in another jurisdiction can qualify for the incentive only if the registration of the vehicle in Ontario is the first time the vehicle has been registered in any jurisdiction. Vehicles that have been registered in other jurisdictions prior to Ontario do not qualify for the incentive.

If vehicles do not meet the residency requirements for the specified term, the incentive payment must be repaid in full.

There are two ways to receive the incentive. The automobile dealer can apply the incentive at the point-of-sale and then submit the incentive application on your behalf. Alternatively, you can purchase the vehicle at full price and apply directly for the incentive by completing the application form and submitting it to the Ontario Ministry of Revenue.

The incentive is applied to the after tax value of the vehicle. In the case of a leased vehicle, the monthly principle amount will reflect the reduced cost of the vehicle.

Download the incentive application form.

Consult the list of eligible vehicles and incentive values

If you are a vehicle manufacturer, download an application to qualify your vehicle for the Electric Vehicle Incentive Program

Most auto manufacturers warranty the battery for 8 years and there are even extended warranties available too.

Because the battery pack is under warranty for 8 years you aren’t likely going to be buying a new battery pack any time soon. Let’s pick a number though, say $15,000 to buy a new battery at current prices, and let’s say in the 9th year, you have to replace the battery. We know 3 things about lithium-ion and other evolving batteries types. Eight years down the road they will be;

i) lighter weight,

ii) have much greater power density,

iii) less expensive.

With the way battery technology is evolving, chances are very good that you will be able to get a battery for 1/3 the present cost and quite likely it will provide triple or greater range and your vehicle will be lighter weight, all providing further opportunities for savings.

Battery Acceptance / Receptivity Rates

Note to EV owners and soon-to-be owners:  Your Vehicle Acceptance Rate will determine what type of EV charging station you will choose to install at your home or business.  Depending on your vehicle’s needs, some stations will be ‘overkill’ and make no difference in the time it takes to charge your vehicle (note the yellow highlights in the chart below).  Other charging stations won’t be enough to charge overnight. SRP Electric will be pleased to assist you in this regard!

Battery Acceptance Examples

 A)    A Toyota Rav4 EV charging with an LCS-25 charging station with 240V:

Check the Vehicle Acceptance Rate versus the Charging Station Delivery Rate for the LCS-25.  Which is lower?  That will be your limiting factor.  Vehicle Acceptance Rate of the Toyota Rav4 EV is 9.6 kW.  The LCS-25 Delivery Rate is 4.8 kW.  Use 4.8 kW because it is the lower of the two numbers (this is the maximum power the charging station can deliver to the vehicle).
Divide the battery capacity by the lower number from above.  Divide 41.8 kWh by 4.8 kW from above.  The result is 8.71 hours to recharge the battery pack from empty to full.

B)     A Toyota Rav4 EV and a CS-50 charging station with 240V:
Check the Vehicle Acceptance Rate versus the Charging Station Delivery Rate for the CS-50.  Which is lower?  That will be your limiting factor.  Vehicle Acceptance Rate of the Toyota Rav4 is 9.6 kW.  The CS-50 Delivery Rate is 9.6 kW.  Use 9.6 kW because both are the same (it is both the maximum the vehicle will draw and the maximum power the charging station is capable of delivering).
Divide the battery capacity by the lowest number from above.  Divide 41.8 kWh by 9.6 kW from above.  The result is 4.35 hours from empty to full.

The length of time required to charge an electric vehicle depends on the voltage of the outlet or charging point used as well as the size of the vehicle itself. A smaller car can be plugged into a standard 120-volt household outlet, but may take up to 12 hours to charge. A larger vehicle may require an outlet up to 220 volts.

Conversely, if an electric vehicle is plugged into a home or public charging station, it may require as few as two hours to charge the battery completely.

So how long does an EV take to charge up an EV?

There are 3 levels of charging – Level 1, Level 2 and level 3.

Level 1 – Using the 15 amp — 110V household plug:

– Chevy Volt takes about 12.1 Hrs to charge

– Nissan Leaf takes about 18.2 Hrs to charge

– Ford Focus EV takes about 17.4 Hrs to charge

– and the Mitsubishi takes about 12.1 Hrs to charge

Level 2 – Using the >25 amp —  240V delivery rate: 

– Chevy Volt takes about 3.3 Hrs to charge

– Nissan Leaf takes about 5.0 Hrs to charge

– Ford Focus EV takes about 4.8 Hrs to charge

– and the Mitsubishi takes about 3.3 Hrs to charge

The fastest charging is Level 3 or ‘DC Fast Charging’:

This will charge a battery up to 80% in only 25-45 minutes. Soon, you will see many more of these chargers along the 401 and other routes across Canada to compliment our high speed level 2 chargers. However, costs are substantial – these units range between $25,000 and over $100,000.

Why 90 amp Charging Makes Sense:

All this said, what  we need to note is that 80-90% of Charging is done at home or at work and at night. So every day when you get home from work, school, shopping etc, you plug in. The next morning – Voila! You have a full charge and are ready to go. Now you can’t have a gas station at your home, the government won’t let you, but you can have an electric vehicle charging station at home!
In Canada, almost 90% of the population travels less than 60 km per day on their return trip to work. So you never really have to worry about running out of electricity.

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Distance is very important. But you will agree that even conventional cars have limited range too. The only difference which is an added advantage is the abundance of gas stations at specific distances to fuel up.

Data indicate that 80 percent of normal drivers drive less than 60 km a day, which means that charging every night (or every few nights), will get us to work and back with a few errands in between (reference). So for distances above say 100 Km to -– we need some sort of charging infrastructure.

The cruising range of an electric vehicle depends on a variety of factors, including the size of the battery, the model of the car, the road conditions, as well as the way the vehicle is driven.

Poor weather, either extreme heat or cold, can cause battery performance to decrease, resulting in less mileage. Similarly, internal climate control mechanisms such as heating and air conditioning can drain the battery significantly and reduce the distance the car is able to travel between charges.

However, these factors aside, average family-car size vehicles typically range about 100 km per charge.

Back to the question on how far do EV’s go on a charge?

The Ford Focus EV and the Nissan Leaf with bigger battery packs travel up to about 24KM on a single charge, while the Chevy Volt and the Mitsubishi i-MiEV travel lower KMs at 16KM due to smaller battery packs. The Tesla Roadster goes up to 380 kms on a charge while the Tesla Model S Motor Trend Car of the Year goes up to 480 kms. So on the Model S seven seater sedan, you can drive as far as from Toronto to Ottawa on a single charge. Plus it does 0-100 kms/hr in 3.9 seconds! Now a Chevy Volt has a total combined electric and gas range of over 550 kms so there are vehicles for almost every scenario and getting better every day.

Sun Country Highway’s Via Motors / VTrux units however use Extended Range Electric Vehicle (EREV) technology -somewhat similar to a Chevy Volt. These vehicles get 60-65 kms of range in pure electric mode before the on board gas engine and generator kick in to replenish the battery pack and give you a combined electric and gas powered range of ~650 kms. And the best part is you get up to 100 mpg or 1.5lt/100 kms fuel economy.

The important thing to think about is to purchase a vehicle that satisfies 98% of your driving needs. Many people say “but when I want to drive from Toronto to Quebec City what do I do, an EV can’t go that far”? True, a pure electric car may not be practical for very long trips, but how often does the average person take such trips, one, two or maybe three times per year? Within a year, one will be able to find Fast level II or Level III DC Quick Chargers almost everywhere!

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Electric cars can be found every where today, and show up in the news all the time.

Electric Vehicles (EVs) originated in the mid-19th century as electricity had become the most popular method for motor vehicle propulsion. This provided a level of comfort and ease of operation that could not be achieved by the gasoline cars of the time (reference).

The major difference between a gasoline and an EV are:

– The gasoline engine is replaced by an electric motor.
– The electric motor gets its power from a controller.
– The controller gets its power from an array of rechargeable batteries.

All electric vehicles contain the following components:

– Multiple rechargeable batteries
– At least one electric motor
– A controller that connects the motor to the accelerator pedal
– A charging system

The rechargeable battery provides electricity to the motor, which in turn controls the vehicle’s transmission. When the vehicle’s battery needs to be charged, it can be plugged into a standard household outlet (which may take up to 12 hours to charge depending on the outlet voltage), a specialized home charging system, or a public charge station connected to a community power grid.

Check this out!

1) By choosing to buy and EV, you save yourself a lot of money because we already know we can literally drive all the way across Canada for FREE and the cost to charge up is 1/8 that of fuel for a gas powered vehicle. So how much can you save in your local metropolitan area?

2) You helped save the environment and helped reduce healthcare costs!

3) Plus, you further helped sustain the economy on 2 levels – by employing an electrician and ensuring jobs for regional utility workers.

How does it get any better than that?

Well think about not having to pump gas in the freezing cold and how nice it is to leave your house every day with a full charge. There is also no need to search for a gas station without a line-up on route to work in the morning.

Our partnership with Sun Country Highway brings the World’s Longest/Greenest Highway Project to your doorstep. Sun Country Highway now has hundreds of chargers installed across Canada mainly on the Trans-Canada and 400 series Highways, with a goal to have over 1,000 chargers or more in place reaching out to 95% of Canadians.

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