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Steven
Steven
1 year ago

Shawn doesn’t answer Jack’s claim that there will not be enough electrical capacity for electric vehicles.
Jack said that e vehicle owners will come home at 5pm and plug in their vehicles.
This is true, but chargers allow you to set charging time, so the car will not start charging until low e prices start (10PM or so).
At night, there is plenty of low cost electricity.
In addition, e cars will act as batteries during the day. This will reduce the need for additional power (peaker) plants and actually help the grid.

Shawn said that new e cars are too expensive (status symbols), and instead you should consider a 3yr old Tesla model S. This car is not available for less than the 25k limit for 4k tax credit.
Also, new Tesla model Y (after 7500 credit) is 35000 (pre-tax). This is comparable to new high end Toyota or Honda. In addition, state tax credits available for tesla, and cost of ownership much less for tesla.

Steven
Steven
1 year ago
Reply to  Jack Spirko

Your comments would be correct if most vehicles were charged during the day.
However, as I explained, EVs are mostly charged at night.
You keep saying that nobody has shown how all these EVs will be charged. I explained this in a previous post (year ago?) and above.
Instead of insults, try dealing with the content of my argument.

Steven
Steven
1 year ago

Ok, if we are agreeing that people will charge at night, let’s look at the amount of energy available at night.
This link shows that nigh use of e is about half of total e available on the grid (across the US).
https://www.eia.gov/todayinenergy/detail.php?id=42915

I know this is a US average, but in early adopting states and in cities, the difference in day (run business and home AC) is at least as large as national average.

Let’s assume 50% of people own EVs and drive 50miles per day.
Currently, that uses about 15kwh.
If you charge from 10pm to 6am, that is 8 hours, using about 2kw continuous. I understand charge curves of EVs, but if overnight charging becomes a burden, utilities can use incentives to have people charge at constant 2kw.

I was going to go through the math until I realized that 2kw continuous draw added to nighttime use is so much smaller than daytime use, that the argument seems settled. There is enough current generation to charge e cars at night at 100% adoption.

However, solar prices are coming down so quickly, that current utility generation will be easily expanded if more e needed.

The transformers and transmission lines needed for this increased generation are not in place and this is concerning.

Ps calling me stupid is unwise as I don’t seem to lose too many of these disagreements we have.
…especially about e cars, as I have all the Tesla solar generation and storage tech, and am a large shareholder in the company.

Steven
Steven
1 year ago

Wow, you are not capable of replying to my MATH, that 2kw continuous use overnight is no problem; but instead keep insisting e cars will use 2x HVAC systems per house.

Well, if you are just going to be emotional and insulting, forget it.

You have a very high IQ, but your defensiveness keeps you ignorant on certain topics.

You are, however, correct that you didn’t call me stupid, you said I was like your friend who did stupid things but was overall smart. I should have read that part more carefully.

If people are being asked to conserve electricity at night (which seems unlikely since rates are lowest at night), it is probably in very limited areas–though admittedly i have never heard this.

If you remember my first post, electric vehicles are the energy storage the grid needs.

Are you proud of how you deal with information you disagree with?

Bryan Steimel
Bryan Steimel
1 year ago

Something that I missed during the discussion is that you cannot include labor costs in building envelope improvements. That changes the math quite considerably if your paying someone to do the projects.
https://www.irs.gov/credits-deductions/frequently-asked-questions-about-energy-efficient-home-improvements-and-residential-clean-energy-property-credits-labor-costs