Is there any more in-depth analysis to show how many EVs would be needed to make this feasible, how this would work with time of day use of power from commutes vs generation from solar power, how long the grid could stay powered this way, impact on consumers range, etc? I think the concept seems simple at first but would it actually be resiliant relying on just EV batteries? A cloudy week could see everyone run out of power, for example.
Doesn’t energy made out biomass (like wood-fuels) release a lot of CO2 as it’s still a carbon source?
Also, in the same article, nuclear energy seems to be pretty high up too (if not higher) and they’re building a new reactor, showing that it’s not one or the other, but a combination that’s probably the best.
Present day carbon cycling is okay. It’s when you take captured carbon from millions of years ago and release it without capturing it that has gotten us into trouble.
A single Tesla powerwall has 13.5kwh of usable energy. An average Tesla car has between 70-100kwh of usable energy. The average American home uses about 30kwh/day (https://www.eia.gov/tools/faqs/faq.php?id=97&t=3). There are about 141 million houses in the US. There are 275 million personal and commercial vehicles in the US. So there would be plenty of capacity once you replace a significant chunk of those vehicles with EV.
Cloudy weeks don’t occur over large areas - if you look at solar or wind production over an entire county or state, for example, it varies very little (that’s also the advantage of using both sun and wind - when one is bad the other is typically good). So the solution to intermittency is mass adoption.
In regards to V2G. Tesla is not even supporting bi-directional charging at this point and it is just now starting to become a bit more common in newer models. It would be interesting to see more detailed example about this. You would also need to include the usage of industry and commercial which as far as I know together account for more than residential usage. How about availability in terms of SOC and being plugged in or not. I think this is a bit more difficult to solve than you are alluding to but I’m happy to be proved wrong.
This is a far easier problem and solution than building a nuclear reactor. And it’s utilizing something (EVs) that we need anyway so improved utilization of resources.
Probably a good move by Tesla. I’ve been on team EV for a decade and hope V2G works out. But I’ve yet to see a convincing argument that it will work as the main storage method.
Ok this is interesting. Do you have a source for this figure? You are saying that 1.3 million EVs would be enough to support the UK were it to transition to wind + solar entirely (my initial question)?
Is there any more in-depth analysis to show how many EVs would be needed to make this feasible, how this would work with time of day use of power from commutes vs generation from solar power, how long the grid could stay powered this way, impact on consumers range, etc? I think the concept seems simple at first but would it actually be resiliant relying on just EV batteries? A cloudy week could see everyone run out of power, for example.
Yeah at higher latitudes the energy consumption is highest when renewable production is lowest.
Geothermal would work, but it is very expensive unless you have a large property or a decent sized pond.
It would still require power from other sources, but would dramatically reduce demand.
Geothermal was trialed and deemed unprofitable. Nuclear power has been serving our baseload needs for 50 years.
Solar yes but not wind.
On coldest days in jan and feb the wind production here is nearly zero.
I’m glad your fellow countrymen have already got this figured out. Finland is a world leader in bioenergy. https://www.trade.gov/country-commercial-guides/finland-energy#:~:text=Renewable Energy,system based on fossil fuels.
Doesn’t energy made out biomass (like wood-fuels) release a lot of CO2 as it’s still a carbon source?
Also, in the same article, nuclear energy seems to be pretty high up too (if not higher) and they’re building a new reactor, showing that it’s not one or the other, but a combination that’s probably the best.
Present day carbon cycling is okay. It’s when you take captured carbon from millions of years ago and release it without capturing it that has gotten us into trouble.
A single Tesla powerwall has 13.5kwh of usable energy. An average Tesla car has between 70-100kwh of usable energy. The average American home uses about 30kwh/day (https://www.eia.gov/tools/faqs/faq.php?id=97&t=3). There are about 141 million houses in the US. There are 275 million personal and commercial vehicles in the US. So there would be plenty of capacity once you replace a significant chunk of those vehicles with EV.
Cloudy weeks don’t occur over large areas - if you look at solar or wind production over an entire county or state, for example, it varies very little (that’s also the advantage of using both sun and wind - when one is bad the other is typically good). So the solution to intermittency is mass adoption.
In regards to V2G. Tesla is not even supporting bi-directional charging at this point and it is just now starting to become a bit more common in newer models. It would be interesting to see more detailed example about this. You would also need to include the usage of industry and commercial which as far as I know together account for more than residential usage. How about availability in terms of SOC and being plugged in or not. I think this is a bit more difficult to solve than you are alluding to but I’m happy to be proved wrong.
This is a far easier problem and solution than building a nuclear reactor. And it’s utilizing something (EVs) that we need anyway so improved utilization of resources.
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Probably a good move by Tesla. I’ve been on team EV for a decade and hope V2G works out. But I’ve yet to see a convincing argument that it will work as the main storage method.
deleted by creator
Ok this is interesting. Do you have a source for this figure? You are saying that 1.3 million EVs would be enough to support the UK were it to transition to wind + solar entirely (my initial question)?
@penitentOne
1.3m EV could store 1.3million x 50kwh = 65gwh
The UK uses 28gwh on an average day
It seems to add up quite well. These guys looked at it.
https://octopusev.com/powerloop