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Toyota to Obtain Permission for Public Road Test for Plug-in Prius in Japan

Ngy200707180019’s rendering of the plug-in. Toyota Motor Co. will obtain permission from Japan’s Ministry of Land, Infrastructure and Transport by the end of July for the testing of a prototype plug-in Prius on public roads.

Toyota will be the first car maker to obtain permission for a plug-in hybrid test in Japan. After completing the road tests, Toyota will start building a way to market the model by leasing them to public (government and municipal) offices.

According to the report, Toyota is testing a lithium-ion battery pack in the plug-in.

Earlier this year, Nikkei Business speculated that Toyota would introduce the plug-in at the Tokyo Motor Show in November.

(translation by Futoshi SATO)



I doubt V2G will actually happen.

Whats more likely is G2G.

i.e. After a battery is 20% worn down, it's no longer good for transportation.

But it's 80% battery life left is still good for grid storage.


This fixes the dilemma of a car operator wearing down their expensive car batteries.

Instead the grid operators will own exclusive rights to batteries they can buy at a cut rate price.


So is the 2009 Prius to be LiIon PHEV? Is that the consensus? It wouldn't make sense to make news like this and then release a car that's not PHEV, this type of information would eat at their sales as informed people would wait until the PHEV arrives before they buy. Plus it would be a huge letdown to not be PHEV.


Was said
" Toyota spent millions telling the public "you never have to plug it (the Prius) in". They need to reverse that marketing slogan before heading in the opposite direction. "

Not sure if they really need to reverse the slogan or just change the option list.

The Hybrid market will continue to grow as the price of gasoline continues to rise. These events move in tandem.

What Toyota could do is offer 2 models of Prius.

Base model Prius would be much the same as today's car as in HEV only.

High end Prius model could be a PHEV with bigger batteries and a plug in option.


pstoller78: "Too much complexity in a parallel system."

I too like the simple concept of a serial PHEV, but I've had to re-examine that preference since attending a lecture given by Prof. Andy Frank (U. Cal. Davis). The fellow is pretty much the father of the PHEV. He's built a number of them in a variety of configurations and has settled on parallel as the best (I believe for efficiency reasons). At this point I'm willing to look at either type, I just want to see one on the market.


Yes good news. If you factor in the sustainability factor Honda is ahead of Toyo. I'll consider a Prius when Toyo gets transparent about the EMF's produced by their engines and when the comes up with a better battery. Right now the main mineral in their batteries in mined in Canada causing significant harm there. The mineral is then shipped to another country for processing. So most Prius' are full of stuff the is shipped all over the world in order to make the car. How about a car made from local stuff. Check out

Max Reid

All that is needed is a battery with 10 mile range. At 10 miles / day, it works out to 3,000 miles / year (assuming we drive 300 out of 365 days / year).

And 3,000 miles is 25 % of the average distance driven which is 12,000 miles / year in US.

Most important thing is the price premium. It should be less than $3,000 compared to regular Prius.

Please note the fact that only people who live in SINGLE FAMILY & TOWN houses can plugin while those in Apartment cannot. So it cuts out 1/3 of the US households from buying this vehicle, while in Europe/China/Japan and elsewhere, %age of those who cannot use is even higher.

But eventually, gas stations may offer Quick charge facility which will help everyone.


Lets be clear here.

If Toyota does this it will change the car market forever. Having the vision and forsight to test this is one thing. Put in on the roads in the USA and the industry will change. Toyota will be like awesome and everyone will want a car. I would sign up now for a PHEV. If america can get everyone in PHEV and kill their dependence on foreign oil that would be great. No need to fight wars to protect oil fields. Bring on the revolution. Toyota i saulute you.


You know, Ford and GM produced hybrid prototypes during the Clinton administration; Gore's future vehicle program. Both vehicles were mid-size 4-door sedans, a little larger than a Prius, both engines turbocharged diesels. Their mileage was 70 and 80mpg respectively. GM backed up its engine/motor drivetrain with a fuel cell stack and hydrogen tank. Ford backed up their hybrid drivetrain with a battery pack; simpler and more versatile for other technological applications. I'm still wondering why GM was adverse to a design incorporating a battery pack. I mean, the EV1 battery pack problems were quickly resolved and proven reliable.

I think the PHEV discussion needs to get beyond simple mileage potential, and get into how they offer exclusive safety features. PHEV, the safest car of all!
How much money would fewer accidents and loss of life save? Did I just equate fewer loss of lives and money? Shame on me.


While I applaud Toyota for their hybrid technology & to be the first out of the gate proposing a PHEV, how about we forget gas! Why don't we all switch to compressed air vehicles. If we want a hybrid then how about electric & air. Makes more sense to me if we junk the internal combustion engine running on fossil fuel!


I'm tired of looking at LiIon and not knowing how to pronounce it. How about changing the name to Lithion?
LiIon is so awkward.


Re: State Governments losing tax revenues.

State Governments, then, should install public charging
stations requiring the use of a Charging Station Credit
Card. The utility collects a certain percentage, the government skims a certain percentage.

By the way, full charge take 10m or less now.

Brad Harris

I think a lot of people would be happy with just 20KM of electric range in a Prius if that's what it takes to keep the battery from wearing out prematurely.
You could buy a second battery as a option if you like.

Earl Killian

In reply to Ed: it is actually not a binary choice; besides NiMH and LiIon there are Lithium battery technologies that are inherently safe and high-current. Two are A123 and Altairnano. A123's batteries are used in Dewalt power tools and in Bill Dube's Killacycle (which uses a decent fraction of its pack capacity in a mere 8 seconds during a standing quarter mile trial). Altairnano's technology was recently demonstrated in Phoenix Motorcars' SUT getting recharged in 10 minutes (now that is high-current!).


Well, don't this just kick a little ass.

John L.

"John L: Why are you 'donating' $200/yr. of power to the local utility? Don't you have a net metering setup at your residence?"

Posted by: bert | Jul 19, 2007 9:31:00 AM

I do have net metering. But I also have a time-of-use meter. I pay, or get paid, different rates for power at different times of the day and year.

As far as kilowatt-hours, I offset 93% of what I consume.

BUT my PV modules face southwest, with it turns out is the optimal direction for generating peak power. I underestimated just how valuable that would turn out to be. So I am generating more peak-power credits, at $0.42/kWh, than I draw during the off-peak hours, at prices as low as $0.09/kWh.

After a one-year period, any credits that I accumulate with the power company are zeroed. I draw heavily on those credits during the winter months, when California has its rainy season and the sun is low in the sky. Still, I just can't spend it all down.

An optimal PV system for me would probably have been one that offsets just 80% of my electricity use.

There are bills circulating in the California State Assembly which would require the utility companies to pay people like me in cash at the end of a year. Of course, the utilities hate that.

In the meantime, a PHEV would use up my energy credits nicely. That $200 buys about 2,200 kWh, which would translate into roughly 8,000 miles of PHEV travel. A PHEV with a 25-mile range would use what I have to spare.


Toyota (and Zap) knows very well that playing it safe in the EV world Right Now, not 2009 0r 2010 means NANOSAFE. They have been talking talking talking to AltairNano.........In the meantime Alcoa, EEEI, ISE, AES,Lightning Electric, PG&E, Pheonix MC,Aerovironment, maybe Symphony and other not yet named OEMs/Battery manufacturers already went beyond the talking stage.
Nanosafe changed the game and if you want to play it SAFE....well got to walk the talk.
Plugin2Go & Plugin2G are ideas.

Martin Lee

Looking at the comments above it would seam that no one is suggesting that hybrid vehicals should be made which can run on a mix of fuels gas / ethanol would seam to be the best bet for many countries. I don't think that it would be beyond the engineers at any large manufacturer to detect the proportions of gas and ethanol being fed to the engine and adjust the engine management to cope with anything from pure gas to pure ethanol. Then there would be no problem moving between areas where ethanol was the prefered option and gas using areas.

Slow recharging of BEVs or PHEVs over night at cheap rates looks to be a good idea but fast charging at a gas station of a BEV may well be at peak electricity prices. These often can exceed the cost of gas.


Was said
"BUT my PV modules face southwest, with it turns out is the optimal direction for generating peak power. I underestimated just how valuable that would turn out to be. So I am generating more peak-power credits, at $0.42/kWh, than I draw during the off-peak hours, at prices as low as $0.09/kWh."

I would like to see more information on your home setup with the panels that face southwest. Do you have it on a web site anywhere?

What power companies pay more for peak than off peak. From what I hear of Rocky Mtn Power they pay just 4 cents per kwh all day and all year. Thats one of the reasons my system is "off grid" and used to power my EV.

You can see details of my EV project at

Henry Gibson

Toyota must promote its patented semi-parallel hybrid system other wise it would not get royalties. If the starting point is a battery electric vehicle and V2G technology with mostly local driving a series hybrid has fewer mechanical complexities and cost. Most Diesel locomotives are series electric hybrids without batteries. There are a few hydraulic coupled large locomotives. Wheel motors make a series hybrid almost imperative. Electric hybrids may always be more expensive than hydraulic hybrids. Series hybrids would allow the use of a more efficient single piston engine without worrying about torque pulses. Parry People movers have a very large flywheel for their hydraulic hybrid rail-tram. Perhaps the high-power low-capacity battery in a hybrid should be replaced with ultra-capacitors or a small flywheel for lower costs. The Prius would get most of its present mileage with ultra capacitors. Calcars has shown that even low-cost lead acid batteries will work for low-power high-energy storage in a Prius for plug in applications. The California car market and US SUV market has shown that economy of purchase or operation is not of high concern in the majority of cases. Small engines have enough power for freeway speed driving on the level, but even power drills and vacuum cleaners have to have more horse-power, volts or amps to compete in the market place. I am waiting for the advertisment:" Toyota Prius now with 444 VOLTS."...HG..


Maybe you need to be a company with it's origins on a small island to give a sh*t about melting ice caps and rising sea levels. Not surprising it's a Japanese company blazing this trail. Screw big auto in the US, they are more in bed with big oil than anyone.

viral malviya

good morning its cool to heard about the cars to be running on this.

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