The Giant EV General Discussion Thread
#346
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Porsche may have an 800 mile range battery up their sleeve....this would be a game changer
https://www.thecooldown.com/green-bu...ge-ev-porsche/
https://www.thecooldown.com/green-bu...ge-ev-porsche/
#347
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Porsche may have an 800 mile range battery up their sleeve....this would be a game changer
https://www.thecooldown.com/green-bu...ge-ev-porsche/
https://www.thecooldown.com/green-bu...ge-ev-porsche/
#349
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Talk about miss-information....... Did you actually read these miss-information articles?? Yup, lobbying is taking place on both sides of this coin with lots of half truths going around. Some of these articles take a total "Micro" view of the EV itself vs. the ICE vehicle. Total disregard for where the Electricity comes from, how it is generated, how it gets to the EV, the upcharge cost at Charging stations, the fact EV don't pay "Road Use Tax".......yet, the environmental impact from Battery manufacturing, etc, etc, etc........
Yes the EV will benefit the City Centers that have a high concentration of cars and potential air quality issues, yet they simply export the pollution to other locations.
.
Yes the EV will benefit the City Centers that have a high concentration of cars and potential air quality issues, yet they simply export the pollution to other locations.
.
Some more info on emissions
https://www.thermalfluidscentral.org...ustion_Engines
Let's get some other things out of the way. Gas doesn't magically appear in the storage tanks at gas stations. First, oil has to be pulled out of the ground. Modern fracking isn't exactly environmentally friendly. In Texas right now which is in a serious drought, fracking is taking away water that could otherwise be used by people. It takes energy and emissions to pull oil out of the ground, transport it around the world to refineries, refine oil into gas, and then transport to gas stations. Lots of old gas storage tanks leak into the ground too. And the occasional oil spill. Did I mention that most of the oil reserves in the world are located in countries we don't get along with? Energy independence is a national security issue and we don't have even remotely the big pile of oil in our reserves.
EVs are much more efficient in using the energy they carry. Motors and inverters are ~95% efficient. Taking into account losses from charging/filling the car, you're still over 80% efficiency. Typical modern gas engines are peak efficiency of ~40%, but that's only when you're operating in the load and rpm range for peak efficiency which is typically about 2/3 load and 1/3 rpm. Most of the time we're operating at low loads where brake thermal efficiency is only like 20%.
Energy production? Even Texas is about 1/5th renewable now. https://www.ercot.com/
At the instant I'm typing this, California ISO is getting 45% of its energy from renewable. https://www.caiso.com/Pages/default.aspx
Johnny Lieberman wrote a pretty good summary and this dude is not even remotely a 'greenie'.
https://www.motortrend.com/features/...being-lied-to/
Last edited by spdracerut; 09-02-2023 at 02:14 PM.
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Kheires (09-06-2023)
#350
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Then, on the other hand...... out in the less populated areas, EV are pretty useless for meeting the needs of many consumers.
As I said, "Build a better mouse trap and folks will buy it". So far EV adoption is not going very well across the country. I support EVs in certain locations/situations, yet lets not force it into situations where it just does not work that well....... And lets not forget where the vast majority of electric Power Generation comes from ..... Fossil fuels;
U.S. utility-scale electricity generation by source, amount, and share of total (Data as of February 2023)
Energy source Billion kWh Share of total Total - all sources 4,243
Fossil fuels (total) 2,554 60.2%
Natural gas 1,689 39.8%
Coal 828 19.5%
Petroleum (total) 23 0.6%
Petroleum liquids 16 0.4%
Petroleum coke 7 0.2%
Other gases3 12 0.3%
Nuclear 772 18.2%Coal 828 19.5%
Petroleum (total) 23 0.6%
Petroleum liquids 16 0.4%
Petroleum coke 7 0.2%
Other gases3 12 0.3%
Non-CO2 Renewables (total) 843 19.8%
Wind 435 10.2%
Hydropower 262 6.2%
Solar (total) 146 3.4%
Renewables - Biomass (total) 53 1.3%Hydropower 262 6.2%
Solar (total) 146 3.4%
Wood 37 0.9%
Landfill gas 9 0.2%
Municipal solid waste (biogenic) 6 0.1%
Other biomass waste 2 0.1%
Renewables - Geothermal 17 0.4%Landfill gas 9 0.2%
Municipal solid waste (biogenic) 6 0.1%
Other biomass waste 2 0.1%
So Wind and Solar account for less than 15% of our Electricity Generation across the country. Places like AZ, SoCal, TX that have vast Deserts are good for Wind & Solar, yet much of the US does not have the space for large Wind & Solar farms. So again, one solution does not fit all situations. Let EVs thrive where they provide the most benefits, and let ICE Vehicle thrive where they provide the best solution.
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#351
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At the instant I'm typing this, California ISO is getting 45% of its energy from renewable. https://www.caiso.com/Pages/default.aspx
I am all for the push for greener technology in reducing emissions however lets not try and pretend our power grids are anywhere that close on sustaining with renewables lol. We will (for quite a long while still) need a decent amount of available fossil capacity...... and in instances where there isnt..... just look at what ERCOT had to deal with during URI. Yikes
Last edited by MechEngr1287; 09-02-2023 at 04:50 PM.
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George from MD (09-04-2023)
#353
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abarthguy (09-04-2023)
#354
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.....
At the instant I'm typing this, California ISO is getting 45% of its energy from renewable. https://www.caiso.com/Pages/default.aspx
At the instant I'm typing this, California ISO is getting 45% of its energy from renewable. https://www.caiso.com/Pages/default.aspx
Time to plug in the EV and charge it up with 90% Fossil Fuel Electricity!
Last edited by 981KMAN; 09-02-2023 at 11:21 PM.
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abarthguy (09-04-2023)
#355
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#356
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I work in the energy industry for one of the largest power utility providers in the country and i must admit, I always get a good kick out of people using California ISO as their example for thriving renewable success; What their data fails to tell you is the amount of power they are buying from neighboring states to curtail their own generation shortcomings. Man if i had the resources I'd be chomping at the bit to build a combined cycle plant right on california's border so i could sell them megawatts every day
I am all for the push for greener technology in reducing emissions however let’s not try and pretend our power grids are anywhere that close on sustaining with renewables lol. We will (for quite a long while still) need a decent amount of available fossil capacity...... and in instances where there isnt..... just look at what ERCOT had to deal with during URI. Yikes
I am all for the push for greener technology in reducing emissions however let’s not try and pretend our power grids are anywhere that close on sustaining with renewables lol. We will (for quite a long while still) need a decent amount of available fossil capacity...... and in instances where there isnt..... just look at what ERCOT had to deal with during URI. Yikes
#357
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And if you knew anything about solar, you'd know a factor in the power generation of a panel is dependent on the angle of incidence of the light onto the panel. Maximum power generation occurs when the sunlight is normal to the panel which is why all panels in the northern hemisphere are angled towards the south and max power generation is at solar noon. As the sun is setting at this time of year past 7pm, it has very low angle of incidence.
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Last edited by spdracerut; 09-04-2023 at 03:06 PM.
#358
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I work in the energy industry for one of the largest power utility providers in the country and i must admit, I always get a good kick out of people using California ISO as their example for thriving renewable success; What their data fails to tell you is the amount of power they are buying from neighboring states to curtail their own generation shortcomings. Man if i had the resources I'd be chomping at the bit to build a combined cycle plant right on california's border so i could sell them megawatts every day
I am all for the push for greener technology in reducing emissions however lets not try and pretend our power grids are anywhere that close on sustaining with renewables lol. We will (for quite a long while still) need a decent amount of available fossil capacity...... and in instances where there isnt..... just look at what ERCOT had to deal with during URI. Yikes
I am all for the push for greener technology in reducing emissions however lets not try and pretend our power grids are anywhere that close on sustaining with renewables lol. We will (for quite a long while still) need a decent amount of available fossil capacity...... and in instances where there isnt..... just look at what ERCOT had to deal with during URI. Yikes
Last edited by spdracerut; 09-04-2023 at 03:04 PM.
#359
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Can we get back on topic please.
This is a thread about the 718 follow-on EV car.
There are plenty of other corners of RL to discuss power grids, EV viability, politics, etc…
This is a thread about the 718 follow-on EV car.
There are plenty of other corners of RL to discuss power grids, EV viability, politics, etc…
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Unstock (09-04-2023)
#360
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Id like to hear everyone’s predictions of the specs of the first 718 EV generation. I’ll go first——/
weight- car and driver said porsches goal was 3650. I expect that weight would be for the entry level model with fewer miles of range and only one motor.
Still I’m thinking the top of the line cayman ev will be approx 4,000 lbs and mid range In between those two figures.
power-
Entry level model - 325 torque
Mid range model- 375 torque dual motor
Top of the line model —425 torque dual motor
range
entry level -250 miles
mid range -280 miles
top o line —320 miles
let me know what you all predict for the specs of the first generation of 718 EVs!