Battery based electric vehicles of today and tomorrow.

[MossRoad]

Ya right. An ev that needs 50-80 amps to charge. Id like to see an arrey that can output that level of power for 8-12 continuous hours.

You know that's not how it works.

 

[MossRoad]

The new ford advertisement for their truck says it takes 80 amps for 8 hours. I’m not making this up. and I never only drive 30-40 mile a day. More like 200 doing service calls.

at 80 amp charging, they say the truck will get 30 miles for every charging hour. Then again they say

With Ford Intelligent Backup Power, enabled by the available 80-amp Ford Charge Station Pro and home management system Ford can help install, F-150 Lightning automatically kicks in to power your house. Once power is restored, the truck automatically reverts to charging its battery. Based on an average 30kWh of use per day, F-150 Lightning with extended-range battery provides full-home power for up to three days, or as long as 10 days if power is rationed, with results varying based on energy usage.

i install generators for a living. Nearly every one is a 22kw generator. How can they say the national average power use is 30 kWh per day. If you run the numbers, this is rediculous assumption. No way in he** this truck can operate a house for 3 days, unless there only running refer, freezer and a few lights. Add in wells, elect heat, heat pumps, ac units. Their nuts.

hows that old saying go......figures never lie, but liars always figure.

Maybe that's the average, and not the median (mean?)?

 

[MossRoad]

Average is just over 10K per day according to this.

Frequently Asked Questions (FAQs) - U.S. Energy Information Administration (EIA)

www.eia.gov

 

[grsthegreat]

You know that's not how it works.

Its not. Enlighten me

 

[drssg]

I could see driving an EV car, with an ICE car in the household for backup.

I cannot see having an EV truck, with an ICE truck available for when I need long distance towing.

OTOH, I know people who own a truck, but do little our no towing. They just want to occasionally have the space available to load something into the bed. I'm sure it will fit some people's needs.

 

[Grumpycat]

Trucks and tractors really need 240 volt overnight charging where they normally park to work best. This even applies to our 40 kWh Nissan Leaf battery.

If wiring a new outlet 240V is trivially harder than 120V.

 

[Grumpycat]

Tesla plans to move to solar for primary at Super Chargers stations I read. I hope to build a garage and use it's roof to power our place to reduce our $5K annual electric bill. Power generation and storage costs are dropping like a rock.

I don't believe it.

10kW requires 33 panels of 300W. One 120kW Supercharger stall would require 400 panels and for most of the country would only produce 100% for 4-5 hours/day. That would be 9,000 sq feet of solar farm. 1/5th acre. Small Supercharger sites have (8) charging stalls.

Rational parts of the country are exercising the fine print of the Federal Grid Tie law which states the utility only has to pay the incremental cost of generation, which averages $0.015/kWh. Yet the utility sells your kWh for full retail price when you need it back. For me that is about $0.10/kWh. Have to give them 6.7 kWh for every 1 I get back.

The cheapest PV solar one can buy, installed, is about $2/Watt. So 10kW peak output costs $20,000. Or $240,000 per Supercharger stall.

At most Tesla will build a canopy covered with PV panels over charging stalls. The shade and protection from rain would be nice. For (8) stalls, 20-30kW for 4-5 hours/day.

 

[Grumpycat]

The charging stations could have local power storage. I read an article not long ago about using flywheels to store energy. A big flywheel can store an impressive amount of power, and release it quickly for a 20 minute charge. Then it could gradually spin up again, stabilizing the load on the grid.

Popular Science or Popular Mechanics featured flywheel storage in the 1970's.

You do not want to be near one in case of an earthquake. The stored energy will rip the spinning flywheel out of the ground.

 

[Gale Hawkins]

I could see driving an EV car, with an ICE car in the household for backup.

I cannot see having an EV truck, with an ICE truck available for when I need long distance towing.

OTOH, I know people who own a truck, but do little our no towing. They just want to occasionally have the space available to load something into the bed. I'm sure it will fit some people's needs.

Keep in mind EV's be it cars, trucks, tractors, etc will not make up 50% of the world's supply before 2050.

Ford has not even built the battery factories needed just to pump out F150 EV's in mass for years to come.

When did you first hear about the Cybertruck? How many Cybertrucks did you meet on the road today?

For many EV's will be as rare as unicorns in our remaining years.

We know talk is cheap. Prototypes are easy and most will never see the light of day.

 

[Grumpycat]

A new roof, ability to be off/on grid and battery storage system with Tesla heat pumps should have our big ticket items out of the way for a few decades. If we can get solar and storage at no net cost over time that would be a retirement plus. Years ago this happened for some in farming.

You absolutely do not want solar on the roof if there is any place to put it on the ground. PV panels are heavy. Roof mount greatly complicates. Means the PV panels have to be removed to re-shingle the roof.