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Toyota Dream House with Plug-In Prius

26 September 2005

Toyotadhpfig3
Recharging stand for hybrids and EVs in the center of the garage

A 6-month long public exhibition of a Toyota concept home—one aspect of which is a plug-in Prius—ended Sunday in Japan. Designed and developed by TRON (The Real-time Operating system Nucleus) project leader Ken Sakamura in cooperation with Toyota Home K.K. (Toyota is also a home builder), the Toyota Dream House PAPI is serving a testbed for an environmentally friendly, energy-saving intelligent house design built with the latest ubiquitous network computing technologies created by the T-Engine project.

Toyota Dream House PAPI was designed to interface with other Toyota technologies—one of the most important being the Prius. In the house concept, the hybrid can be used as a generator to provide electricity to the intelligent house for up to 36 hours in an emergency, such as an earthquake that cuts off normal electrical supplies.

Conversely, the house can supply electricity to the battery packs of hybrids or electric vehicles via the stand in the middle of the garage. Some of that electrical energy can be obtained from solar cell panels that cover the roof, plus the sides of the structure. The house also uses solar heating and fuel cells, making it a hybrid energy house.

The concept house highlights technologies projected to be in use in 2010. No detail on the plug-in attributes of the Prius yet available.

Toyota has proposed the use of the Prius as an auxiliary generator before. In February, at the annual meeting of the National Rural Electric Cooperative Association, Toyota announced it would lease a modified Prius that could provide 3 kW at 120 volts to a rural electric cooperative in Oklahoma for field and market testing.

(A hat-tip to Jack Rosebro!)

September 26, 2005 in Electric (Battery), Hybrids, Japan, Plug-ins | Permalink | Comments (12) | TrackBack (3)

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» Toyota Gets It Partly Right from WorldChanging: Another World Is Here
The Toyota Dream House PAPI (Japanese site) is a concept home designed by Professor Ken Sakamura of the University of Tokyo. Building on the TRON... [Read More]

» Toyota Gets It Partly Right from WorldChanging: Another World Is Here
The Toyota Dream House PAPI (Japanese site) is a concept home designed by Professor Ken Sakamura of the University of Tokyo. Building on the TRON... [Read More]

» Toyota Dream House Includes Plug-In Prius from Treehugger
Last Sunday, the 6-month public exhibition of the Toyota Dream House concept ended (yes, they also build houses - you learn something new everyday). It is partly green, and partly high-tech gadget extravagenza (which is not so green). The most... [Read More]

Comments

I don't see where in the article any mention of a "plug-in" Prius...I think they just used the standard hybrid Prius not a PHEV.

“Conversely, the house can supply electricity to the battery packs of the vehicles via the stand in the middle of the garage.”

The plug-in capability—unlike the minor modifications to have the Prius function as an auxiliary power source—may be conceptual at this point, though. I’m trying to track down more information via the TRON team to see if the car has any actual plug-in modifications.

Our Power Plant runs on burning fuel - I can see the tanks
if I look out of the window..so my question is ( probably
asked many times here before) how far can I drive with a
gallon that the power plant burns, if I had a plug in?

Mike Weindi...

Your question might be answered here:
http://www.calcars.org/calcars-faq.html

Most people that I talk to have the same question that you asked. That site should be a good starting point on the pros and cons of plug-in hybrids. If done correctly it sounds to me like the plug-in hybrid could be an political, envirnomental, and economical home run.

Mike Weindl...

Your question might be answered here:
http://www.calcars.org/calcars-faq.html

Most people that I talk to have the same question that you asked. That site should be a good starting point on the pros and cons of plug-in hybrids. If done correctly it sounds to me like the plug-in hybrid could be an political, envirnomental, and economical home run.

Mike, I'm glad you asked that.  The answer is... it depends.  It depends on the fuel the powerplant is burning, and what it's burning it in.

If you use something very efficient like the GT LM2500+ turbine, you'll need 8850 BTU of fuel per kWh of output.  A gallon of fuel oil at perhaps 145,000 BTU would yield 16.4 kWh.  Used in a plug-in Prius+ consuming 262 Wh/mile, that gallon of fuel oil would let you drive 62.5 miles.  The engine exhaust would be usable for high-temperature heating.

If you used the oil in a combined-cycle powerplant at 55% efficiency instead of the bare LM2500+'s 38.6%, you'd get 23.4 kWh out of a gallon of fuel and get an effective 89.2 MPG.  The waste heat from the plant would be mostly low-pressure steam suitable for space heating.

Burn the fuel in something lousy, and the regular Prius will get better economy.

Plug-in hybrids are one more reason why the power grid has to be cleaned up in most places..

Here in Quebec they would be perfect, though. We're almost completely powered by hydro and wind.

Hey google PHEV. Univeristy of california has plug-in Priuses, also plug-in Explorer suvs. You can make one yourself at home with off the shelf parts. Utility companies will have to give a reduced rate at night. With a bigger electric motor and battery pack you can get the equivilent of 500 mpg. Decentrilized power plants that we have now are much more efficient than a car. Electricity is cheeper than gas. There wont be any additional polution as there is enough energy going to waste at night, when you'd be charging, to power all the green cars you want. Do the math there wont be extra carbon emmissions because you drive electric. Most trips in the car are short so your gas engine need not come on at all. Add an ultracapacitor and utilize all the regen and get more range. Does no one see that fuel cells are a ruse to avoid doing anything as they will never be affordable and are not sustainable as the production of hydrogen will emmit lots of new cabon emmissions and only perpetuate the increase of energy consumption.

Where can I go to get directions on how to turn my 2005 prius into a plug-in?

Two sources to start with: CalCars (http://www.calcars.org) and now EDrive Systems (http://www.edrivesystems.com/)

The conversion involves some significant engineering work and it’s not packaged as a turn-key kit approach yet, although EDrive is planning to market conversion kits in 2006.

California's DWP had Toyta Rav-4 EV's. I am going to stealth my 2005 Prius. I will utillize my Solar System for the charging. I won't have to use Oil burned by the power companies.

Before we really begin to dig into the issues here, I want to preface my argument by pointing out that some people need SUVs, or big trucks. Farmers in particular, who use SUVs and trucks as actual workhorses, are blameless, as are disabled individuals for whom sitting in a car causes discomfort or pain. These people are forced into using SUVs because of their jobs, or personal injuries. But these people are the minority. Most of the individuals who drive SUVs do so because they are hip, shiny and cool, and...

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