[peck420]

Smexy.

(CGI of an Arizona State students idea)

[DanSC]

raydan raydan:

$1:

Dukes are useless, says Wind farm

I've heard wind farms are full of hot air.

[PluggyRug]

eureka eureka:

Note in this article the use of car batteries. One car battery can power up to ten homes.

Not sure where that statement comes from.

Average house use is approx' 7000 kW hours per year, or 19kWh per day.

Standard car battery capacity is around 120 ampere hours, assuming that the battery output is linear (which it's not) and it's an ideal current source (which it's not) the battery would contain 12v x 120I=1440 watts of energy which is 1.44kW, (note, this is a simplified explanation to address the above innacurate statement.)
Without going into the myriad of losses incurred in making that electrical enery compatible with a house, the Watt energy is approx' 130 times smaller than required for 10 houses.

[EyeBrock]

eureka eureka:

There are no products made with oil that cannot be made with various forms of biomass.

Can you make them with windmills though?

[Bruce_E_T]

Gunnair Gunnair:

It also requires a fundamental change in social infrastructure. Frankly, cities have becoming sprawling metropolises with limited and ineffective transit systems. They continue to rely upon the vehicle as the primary mode of transportation. Out here, sprawl has created congestion problems, but that aside, the lack of desire to build up our city centres with housing and thereby diminish the population of suburbs is slow. Yes alternative energies are needed, but without a serious rethinking of how and where we house our people, or kicking in hundreds of billions for highly effective public transit, our problems will not go away anytime soon.

Right. This certainly looks like an option that will pay off over the long term. Thing is that it is not going to work in all cases. Thinking here Detroit (the usual suspect) which has a totally decayed downtown that probably cannot be revitalized. Situations where the urban cores have been maintained have a much brighter economic future.

[eureka]

PluggyRug PluggyRug:

eureka eureka:

Note in this article the use of car batteries. One car battery can power up to ten homes.

Not sure where that statement comes from.

Average house use is approx' 7000 kW hours per year, or 19kWh per day.

Standard car battery capacity is around 120 ampere hours, assuming that the battery output is linear (which it's not) and it's an ideal current source (which it's not) the battery would contain 12v x 120I=1440 watts of energy which is 1.44kW, (note, this is a simplified explanation to address the above innacurate statement.)
Without going into the myriad of losses incurred in making that electrical enery compatible with a house, the Watt energy is approx' 130 times smaller than required for 10 houses.

The calculation is ten houses for seven minutes. Not in the article I posted but an add on from elsewhere. It can be done, apparently, as the piece I posted showed. Don't forget that it is not stated as an answer but as one more storage method.

[DrCaleb]

eureka eureka:

PluggyRug PluggyRug:

eureka eureka:

Note in this article the use of car batteries. One car battery can power up to ten homes.

Not sure where that statement comes from.

Average house use is approx' 7000 kW hours per year, or 19kWh per day.

Standard car battery capacity is around 120 ampere hours, assuming that the battery output is linear (which it's not) and it's an ideal current source (which it's not) the battery would contain 12v x 120I=1440 watts of energy which is 1.44kW, (note, this is a simplified explanation to address the above innacurate statement.)
Without going into the myriad of losses incurred in making that electrical enery compatible with a house, the Watt energy is approx' 130 times smaller than required for 10 houses.

The calculation is ten houses for seven minutes. Not in the article I posted but an add on from elsewhere. It can be done, apparently, as the piece I posted showed. Don't forget that it is not stated as an answer but as one more storage method.

Not possible. Like Pluggy says - even in a perfect world, a car battery isn't capable of that kind of output. A lead acid battery is only capable of 12v @ 10 A for a few minutes at best. Stepped up to household voltage (at 100% efficiency) would give 120V at 1A, just enough to run 2 60 Watt lightbulbs for perhaps an hour or two. (back of the napkin E=I*R)

It won't even run one house fully for 7 minutes let alone 10.

[EyeBrock]

Doc, you shouldn't let facts get in the way of eureka's rhetoric.

[DrCaleb]

EyeBrock EyeBrock:

Doc, you shouldn't let facts get in the way of eureka's rhetoric.

Not in my nature EB. I have to teach when I see incorrect facts. Even if the student will learn nothing from it.

[SprCForr]

DanSC DanSC:

raydan raydan:

$1:

Dukes are useless, says Wind farm

I've heard wind farms are full of hot air.

I'm not sure where I stand on wind farms. There's so much spin.

[eureka]

I prefer the calculations of those who work with these things. I also prefer to ignore nitpicking or I would search for the source of that information.

Actually, you might like to read this and some distance down there is a part about the use of the batteries of electric cars and hybrids. It is nit the one that I was referring to and I do not know where that was. It is, however, a more useful commentary.

Forgot the link!

http://e360.yale.edu/content/feature.msp?id=2170

[raydan]

SprCForr SprCForr:

DanSC DanSC:

I've heard wind farms are full of hot air.

I'm not sure where I stand on wind farms. There's so much spin.

I find a piece of information, then another, and another... then I find out that I'm back to where I started.
It's as if I'm going round in circles.

[SprCForr]

raydan raydan:

SprCForr SprCForr:

DanSC DanSC:

I've heard wind farms are full of hot air.

I'm not sure where I stand on wind farms. There's so much spin.

I find a piece of information, then another, and another... then I find out that I'm back to where I started.
It's as if I'm going round in circles.

I think I'm just going to let the wind take me in the direction it's blowing.

[andyt]

OK, the first two were good, now you're just passing wind.

[eureka]

Here is a recent study that says that the output from Wind Turbines can be increased tenfold.

http://www.eurekalert.org/pub_releases/ ... 071311.php