General > General Technical Chat
Confused about PHEV, Hybrids, etc...
tom66:
No one says 100% BEV by tomorrow. It will transition over the next 15-20 years. There will still be ICE on the road in 2040.
The power generation argument is idiotic. VW e-Golf is 4 miles per kWh... average let's say of 12,000 miles per year... So we need an extra 3,000kWh per car.
UK has 30 million cars - so extra generation of 90TWh. Country generated 323TWh last year.
So yes... It is a lot... But also it is not that much - about 25% of total generation. It seems completely feasible over the course of 20 years that generation could increase by 25%. It will, after all, need to increase as gas heating is phased out. The beauty of EVs is they can charge any time they are parked up, so they are great for soaking up excess renewables.
nctnico:
I agree with the 25% number. However what worries me is whether electricity becomes a scarse commodity at some point. More scarse compared to keep using oil in very efficient hybrids. Switching to hybrids will already cause a huge decrease in fuel consumption and CO2 emissions.
Also keep in mind that under current EU regulations each BEV sold in the EU is equal to a car that emits 90 to 95 grams (don't know the exact number currently in effect) of CO2 due to the fact that car manufacturers have to meet a CO2 emission goal for their cars on average. IOW: for each BEV sold, an ICE car which emits more CO2 is being sold.
2N3055:
--- Quote from: tom66 on August 18, 2022, 05:21:12 pm ---No one says 100% BEV by tomorrow. It will transition over the next 15-20 years. There will still be ICE on the road in 2040.
The power generation argument is idiotic. VW e-Golf is 4 miles per kWh... average let's say of 12,000 miles per year... So we need an extra 3,000kWh per car.
UK has 30 million cars - so extra generation of 90TWh. Country generated 323TWh last year.
So yes... It is a lot... But also it is not that much - about 25% of total generation. It seems completely feasible over the course of 20 years that generation could increase by 25%. It will, after all, need to increase as gas heating is phased out. The beauty of EVs is they can charge any time they are parked up, so they are great for soaking up excess renewables.
--- End quote ---
You might want to ease up on calling things idiotic, while ignoring data you don't like...
Generation IS a problem. But not the biggest one. Grid needs to be taken to the streets. And grid is NOT specified by kWh, but by peak power... THAT is the problem.
nctnico:
@2N3055 I agree that charging infrastructure costs are the bottle neck which will cap BEV adoption at some point short term. Going to a central fast-charge station just like a gas station is a much more money-efficient solution because the infrastructure is shared by more people. But that will take a new type of batteries so it will not happen in the next 15 to 20 years.
pcprogrammer:
Expanding the whole electricity infrastructure will take a lot of time. Take the Netherlands, there in the north solar installations are setup, whilst there is no sufficient grid infrastructure to transport the power. Due to politics the estimate is 8 years before new cables can go into the ground.
But that is just one of the problems. The earth has finite resources of everything. So the biggest question is are there enough for all the plans every government has to obtain the unobtainable goal of zero CO2 emission.
I have asked about the actual numbers in another thread, but no one seems to know. Categorized per system emitting CO2 what the actual values are. The main focus at the moment is on the car and the households using fossil fuels to run. Some say this only takes up a very small share in the total CO2 emission the human race is responsible for.
So is there a chart that shows how much CO2 a human or other big animal produces by eating and pooping, how much industry produces, how much house holds produce, how much cars produce, etc.
And further more is there actual proof that the CO2 is the true and only culprit for climate change? How about methane which is far more a greenhouse gas than CO2. Waste disposal sites in South America are emitting a but load at the moment.
My view on it all is that it is a desperate attempt to turn the tides and in the mean time keep up the growth economy.
Just my 2 cents.
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