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Cleaner and greener?

nozzer
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Cleaner and greener?

This screenshot is from http://www.mygridgb.co.uk/dashboard/  this afternoon. The carbon figure is the instantaneous readout of CO2 per kWh generated. That's with about 50% generation from solar and wind, and a relatively low demand of 26GW. The dashboard is updated in real time.

 

mg.jpg

 

An average pure electric car consumes around 0.4kWh battery capacity per mile, so on that basis 151 x 0.4= 60.4 grams of CO2 being effectively "emitted" per mile if the car is charged up now. If it was charged earlier today the figure would have been about 100g of CO2 equivalent.

In the winter the national electricity demand is much higher, with coal, gas and imports being a lot higher than they are right now, and nothing like as much solar, if any, so the CO2 emitted figure is substantially higher. Add to that the fact that the battery won't last as long because the heating, lights, wipers etc will be in use.

The average small petrol car emits something like 110g CO2, and that's with careful driving. 

So, if you're thinking about getting an electric car and the salesman tells you they don't emit CO2, tell him he's right, but something else does. 

 

8 REPLIES 8
DaveyH
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Re: Cleaner and greener?

Conveniently ignoring all the CO2 produced getting the crude out the ground in the first place, refining it, and distributing it to forecourts etc etc....

PowerLee
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Re: Cleaner and greener?

My 5 door family petrol hatchback is rated to 107g/km.

EV's are not the way forward until clean electrical generation & the problem of mass EV charging is solved.
nozzer
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Re: Cleaner and greener?

@DaveyH 

Similar for the mining, refining and transport of lithium, and making the batteries. 

Hey, I wasn't defending electric cars, just the opposite!

DaveyH
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Re: Cleaner and greener?


@nozzer wrote:

@DaveyH 

 

Hey, I wasn't defending electric cars, just the opposite!


 

That's precisely the point.

 

Sorry Nozzer, I usually have a lot of respect for you and your balanced and objective posts, that you usually back up with evidence. 

 

This isn't one of those posts!

 

RobPN
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Re: Cleaner and greener?


@DaveyH wrote:

 

That's precisely the point.

 

Sorry Nozzer, I usually have a lot of respect for you and your balanced and objective posts, that you usually back up with evidence. This isn't one of those posts.

 

Your being selective with the truth and frankly reads like you've just regurgitated Big Oil FUD coz it fits your view of EVs.


Well that's @nozzer told.

At least the censor wasn't called upon for a change!

DaveyH
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Re: Cleaner and greener?

Go crawl back under your bridge...

nozzer
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Re: Cleaner and greener?

@DaveyH 

I'm slightly puzzled I have to say. It was a simple piece of arithmetic meant to dampen the hype that surrounds electric vehicles. No mention of other fuel pollutants or mining emissions deliberately so as to avoid an over complicated post. I actually found the mygrid dashboard the most interesting anyway. 

Turned out nice again!  Might rain later this week. 😁👍

VileReynard
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Re: Cleaner and greener?

If it rains, they can switch the hydroelectric back on.

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