Battery based electric vehicles of today and tomorrow.

[Gale Hawkins]

Ahh This is a TRACTOR forum. I don't know who those people are that need or want an ev. I certainly can not speak for them.

jus' say'in

We're tractor owners into rural living for the most part I expect or least that is our case.

 

[Grumpycat]

As more residential solar becomes a reality, the utilities will be happy to find a market for their surplus capacity (likely off peak at that).

Ain't gonna happen for at least 6 more years. The golden entitlement years of Net Metering is coming to an end. Utilities should not have to buy your PV power for the same price they resell, they have to pay their employees and interest on the capital used to run wires. New installations in TVA's coverage could get a 20 year contract to buy PV power from system up to 10 kW capacity at $0.090/kWh through the end of the year. After that the rate is $0.015/kWh which is TVA's audited incremental cost of generation. It costs TVA 1.5｢ to generate one more kWh so why should they pay you 9｢? Answer: Because The Government Created An Entitlement Program.

On a different topic, I always wondered why EVs didn't have a small, super efficient, constant speed, diesel generator on board to extend range, emergency back up etc.

There were two models of automobile that do essentially what you describe. The Chevrolet Volt is being discontinued. The BMW i3 REx is still for sale. The Volt had a mechanical link to the drive wheels but engine could run as a pure genset. The BMW i3 "range extender" is a pure genset as you describe. A little car that gets just over 30 MPG running on the engine. Its a terrible system that often can not move the car 70 MPH on engine only. And can not climb mountains if the battery is low.

 

[sd455dan]

That is an area where a Volt cleans the I3 range extenders clock,

does Very well when in mountain mode.

A reporter printed an article on the Volt saying he was worried it would not be an OK car to cross mountains...

This Volt owner tested the theory on the Coquihalla

Chevy Volt Mountain Mode Explained - YouTube

Video was shot on a 1995 mile trip

2012 Volt burned 47 US gallons of gas and also returned an overall average of 42.4 MPG

 

[3930dave]

If you haven't driven it, that summit is a good test of any drive-train.

Coquihalla Summit - Wikipedia

Off topic (sorry...), but somewhere along that highway is a range of totally smooth rock that is a continuously curved downslope.

Driving by that ^, I was thinking "I wonder if some loon has taken a long-board up there ? "..... probably be going 80mph+ at the bottom !

Rgds, D.

 

[California]

The economics of driving seven Teslas for 2.5 million miles — Quartz

An interesting article on operating cost in fleet use. One case is seven Teslas averaging 17,000 miles per month and over 300,000 miles, none showing a need to replace it. That fleet's average total operating cost including depreciation is declining as they add less expensive Model 3's to their fleet along with their original expensive S and X cars.


The article has a comparison of fleet maintenance costs driving in NYC. It copies the following chart from an article that makes clear this is costs aside from the gasoline used.

 

[Oldpath05]

So what does NYC need cars like those for, cant plow snow or do road maintenance with them..........

 

[California]

So what does NYC need cars like those for, cant plow snow or do road maintenance with them..........

Writing parking tickets!



A big city - 300 sq miles, population 8,000,000, has lots of employees out all day. Building permit inspectors, elevator inspectors, pothole complaint investigators/estimators, eldercare complaint investigators, garbage route supervisors, lots of stuff you wouldn't think of.

These fleet cars are just to haul someone's butt around. In severe congested traffic. Their fleet of work trucks like you are thinking of is different.

 

[Industrial Toys]

Apparently it's still one of the most corrupt Cities in The US. I guess they gotta get around to do their corruption somehow and do it as frugally as possible..

 

[Gale Hawkins]

The economics of driving seven Teslas for 2.5 million miles — Quartz

An interesting article on operating cost in fleet use. One case is seven Teslas averaging 17,000 miles per month and over 300,000 miles, none showing a need to replace it. That fleet's average total operating cost including depreciation is declining as they add less expensive Model 3's to their fleet along with their original expensive S and X cars.


The article has a comparison of fleet maintenance costs driving NYC. It copies the following chart from an article that makes clear this is costs aside from the gasoline used.

Thanks for the link. That story is awesome info as to why EV's are gaining ground on many new fronts.

 

[Oldpath05]

Writing parking tickets!



A big city - 300 sq miles, population 8,000,000, has lots of employees out all day. Building permit inspectors, elevator inspectors, pothole complaint investigators/estimators, eldercare complaint investigators, garbage route supervisors, lots of stuff you wouldn't think of.

These fleet cars are just to haul someone's butt around. In severe congested traffic. Their fleet of work trucks like you are thinking of is different.

:thumbsup: At least they dont spend 3 days lost a clover leaf............ 'Lord, Mr. Ford' (Jerry Reed) - YouTube