Electric cars and the grid..... it has begun.

[fizzy]

Maybe they already had enough wind and didn’t need to make any more

Maybe they use them for cooling the nuclear power plants when the rivers are too warm

 

[Morrisman]

Was it a flat calm day?

Not sure, I was doing 80mph everywhere.

 

[Bullet2012]

lots of electric cars in a grid.

 

[Scalarocco]

View attachment 374969

lots of electric cars in a grid.

You could power a small town with that lot.

 

[mike os]

You could power a small town with that lot.

Just need a big ass power station to charge them first

 

[the artfull-codger]

theres no such thing as a free lunch the government have to have there slice of pie from everyone

Haha quite right there B S, they aint gonna let you off without charging you anything, think of all that dosh they don't get from no road tax, probably wear the toads out more than petrol/diesel cars.

 

[atomant48]

probably wear the toads out more than petrol/diesel cars.

I think that’s valid - the extra weight and the extra acceleration must stress the roads a bit more. EVs are usually either accelerating or braking too - not really coasting (at least mine is !) so that must add a bit of wear. Times that by several thousand and it will become an issue.

 

[500e]

 

[Morrisman]

You could power a small town with that lot.

That's what the 'smoothing battery' theorem is based upon: 20,000,000 leccy cars all plugged in overnight.

 

[R Kraft]

A fully kitted Tesla S weighs about 5000 lbs/2250kg, the GMC Hummer EV weighs 9,046 lbs/4,103kg.
If the square law applies to the amount of road damage done, the road taxes should be awfully high.
"That means that if one vehicle carries a load of 1,500 pounds per axle and another carries a load of 3,000 pounds on each axle, the road damage caused by the heavier vehicle is not twice as much, but 2 to the 4th power as much (2x2x2x2 = 16 times as much road damage as the lighter vehicle)."

 

[maroon]

I still think hydroxy is the future. Water splitting cycling electricity. It's just getting the volumes/cycle speed and then there's the danger of it. everyone driving around in a hydrogen bomb. Even though small. But being self sufficient isn't going to generate monetary growth for energy companies. So research on it is nulled I think. the byproduct of such a thing is oxygen and something else that's not harmful.

I think they just need to figure out the right material for the mesh, with the right size hole in the right size and material bowl. Frequency balancing and all that carry on. I'm no scientist. But from what I've gathered reading a few educational papers and what not seems to be the case.

 

[GRW]

A fully kitted Tesla S weighs about 5000 lbs/2250kg, the GMC Hummer EV weighs 9,046 lbs/4,103kg.
If the square law applies to the amount of road damage done, the road taxes should be awfully high.
"That means that if one vehicle carries a load of 1,500 pounds per axle and another carries a load of 3,000 pounds on each axle, the road damage caused by the heavier vehicle is not twice as much, but 2 to the 4th power as much (2x2x2x2 = 16 times as much road damage as the lighter vehicle)."

Except the square law doesn't apply, because again not all pertinent factors are taken into the equation.
Off the top of my head.... contact area. The Tesla runs on skinny hard tyres, a Hummer on "balloon" large volume all-terrain tyres. The actual load force applied to the road surface via the contact points of the Tesla (tyre contact patch) will be higher (for a given weight) than the Hummer's.

Think skinny bird in Stilleto heels v a fat bloke in wellies. Which one is going to sink and poke holes in your lawn?

 

[atomant48]

Except the square law doesn't apply, because again not all pertinent factors are taken into the equation.
Off the top of my head.... contact area. The Tesla runs on skinny hard tyres, a Hummer on "balloon" large volume all-terrain tyres. The actual load force applied to the road surface via the contact points of the Tesla (tyre contact patch) will be higher (for a given weight) than the Hummer's.

Think skinny bird in Stilleto heels v a fat bloke in wellies. Which one is going to sink and poke holes in your lawn?

Although I agree with your point, let’s not Tesla bash ! How many you looked at ? Nice fat grippy tyres … mine would use its 500 odd hp to spin skinny tyres all day long if the computer allowed it.

 

[atomant48]

A fully kitted Tesla S weighs about 5000 lbs/2250kg, the GMC Hummer EV weighs 9,046 lbs/4,103kg.
If the square law applies to the amount of road damage done, the road taxes should be awfully high.
"That means that if one vehicle carries a load of 1,500 pounds per axle and another carries a load of 3,000 pounds on each axle, the road damage caused by the heavier vehicle is not twice as much, but 2 to the 4th power as much (2x2x2x2 = 16 times as much road damage as the lighter vehicle)."

Again, agre with the concept not sure I understand (or believe) the reasoning there … in the airplane world this stuff has been monitored for years - even tyre pressures are “regulated” to ensure certain characteristics. So it’s a real factor and as vehicles become markedly different (tiny, light commuter vehicles compared to quite heavy high loading (say) EVs) I think it’s an area that could/should be explored.

 

[daleyd]

A couple of quotes from articles….

For decades, vehicles have gotten heavier from electronics, technology and safety systems and consumers preferring larger SUVs and trucks, said Sigve Jarl Aasebø, senior adviser at the vehicle section of the Norwegian Public Roads Administration. What is more damaging for roads than weight, though, is studded tires, aggressive driving and higher engine power.

"The weight of the vehicle and battery pack is a secondary factor," he said. "It's probably fifth or sixth place

California, the state with the highest EV adoption rate, doesn't factor EVs into its rate of roadway wear because they weigh under 10,000 pounds and aren't expected to create additional maintenance costs, according to Nicole Mowers, a spokeswoman for Caltrans

"The difference between the weight of a standard light vehicle with an internal combustion engine and an EV is not significant enough to cause concern," Michigan Transportation Department spokesman Jeff Cranson said


As for teslas on skinny tyres, a standard model s has 245 section tyres, hardly what I’d call “skinny”

 

[GRW]

Although I agree with your point, let’s not Tesla bash ! How many you looked at ? Nice fat grippy tyres … mine would use its 500 odd hp to spin skinny tyres all day long if the computer allowed it.

500hp and fat tyres huh? Yours can't exactly be the std commuter "economy, planet-saving (allegedly )" model Tesla's I see out n about mostly!

I was just making the point (in the same vein as that Ted Talk) that there's way too much selective stat cherry-picking done (by just about everyone with a tub to thump or a product to flog) to put the spin they want, to present something in the positive/negative way they want.

Tbh I'd even question whether the (excellent overall) Ted Talk's conclusion about Hybrids is absolutely correct. E.g. Did they allow for the fact that Hybrids have weedy engines that have to drag an awful lot of extra battery & electric motor kilos about (which makes them very thirsty in engine mode) into their modelling?

No studies seem to consider different topography either. E.g. a dinky engined, under-powered car can be very fuel efficient in Norfolk or Netherlands - but bring it here to steep & lumpy Wales - and the same model with a bigger and supposedly less economical motor - will likely do better mpg (esp. When the vehicle is loaded).

 

[daleyd]

 

[atomant48]

500hp and fat tyres huh? Yours can't exactly be the std commuter "economy, planet-saving (allegedly )" model Tesla's I see out n about mostly!

I was just making the point (in the same vein as that Ted Talk) that there's way too much selective stat cherry-picking done (by just about everyone with a tub to thump or a product to flog) to put the spin they want, to present something in the positive/negative way they want.

Tbh I'd even question whether the (excellent overall) Ted Talk's conclusion about Hybrids is absolutely correct. E.g. Did they allow for the fact that Hybrids have weedy engines that have to drag an awful lot of extra battery & electric motor kilos about (which makes them very thirsty in engine mode) into their modelling?

No studies seem to consider different topography either. E.g. a dinky engined, under-powered car can be very fuel efficient in Norfolk or Netherlands - but bring it here to steep & lumpy Wales - and the same model with a bigger and supposedly less economical motor - will likely do better mpg (esp. When the vehicle is loaded).

As i say, agree with what you’re saying…. But you’re misinformed on the tesla. Masybe you’re seeing nissan notes with T badges ?

 

[daleyd]

Real world data from my few months running a hybrid…

I’ve posted a picture in another thread a while back, but I’m now a few more miles in with my plug in hybrid company car. Here’s a pic from this morning after 2500 miles and 5 months of driving it (in hilly wales no less!) It’s not my choice as a car so I’ve got nothing invested in this, and nothing to prove - those figures are just what they are.

For ref its 200bhp - the petrol car it replaced was 180bhp and over 4 years it averaged 43-44mpg. I’m not going to pretend they would suit everybody but that’s a quite significant improvement, my journeys have been a mix of mainly long distance and some shorter stop/start stuff.

 

[8ob]

Real world data from my few months running a hybrid…

I’ve posted a picture in another thread a while back, but I’m now a few more miles in with my plug in hybrid company car. Here’s a pic from this morning after 2500 miles and 5 months of driving it (in hilly wales no less!) It’s not my choice as a car so I’ve got nothing invested in this, and nothing to prove - those figures are just what they are.

View attachment 375010

For ref its 200bhp - the petrol car it replaced was 180bhp and over 4 years it averaged 43-44mpg. I’m not going to pretend they would suit everybody but that’s a quite significant improvement, my journeys have been a mix of mainly long distance and some shorter stop/start stuff.

ATM the hybrid makes most sense, that car is getting similar mpg`s to my little 1.4 diesel van.

Bob