Re: Grid-Battery "Hybrid" Tractors

Do you actually kno what no till agriculture is?

Hint, it involves a sod seeder instead of a combine & ploughing.

Just another tool in the fight against obesity.

Err, is this something to do with fast charging? Heard 110% for C/10 in dep-discharge lead acid batteries, but not that much.

notie this paragraph after I flicked the other answer....

So instead of 415V supply, you just tap the 11Kv lines instead.

Lol, the problem with this idea is that farmers producing the same crop generally all do the same job at the same time.

Actually, your system might work better if the tractor camewith a pair of swappable battery packs that you dock in and out of a charging station.

It would certainly help the economics by reducing the peak power demands.

What'll happen is they'll get together more often, i. e., public transportation, and eat even more.

Bret Cahill

The OP issue is the tens of billions a year unnecessarily wasted on diesel for agriculture.

That's the context, the _only_ reason for electrification of farms.

Are you just acting dumb or are you really this stoopid?

Bret Cahill

You _want_ to go Rube Goldberg?

If your goal is to cost farmers more money then that explains a lot.

Bret Cahill

Still trying to dodge the OP issue, the cost of diesel fuel?

Are you just acting dumb or are you really this stupid in real life?

Bret Cahill

Which is trivial merely by wiring in more batteries in parallel.

Are you just acting dumb or are you really this stupid in real life?

. . .

The real savings appear in the energy intensive operations.

The more energy intensive the operation, the bigger the savings from moving from diesel to batteries.

If you go to less energy intensive operations, say a garden tractor, it is of course cheaper to go Li-Ion instead of liquid fuel, but the absolute savings aren't all that great.

Are you just acting stupid or are you really a moron in real life?

Bret Cahill

The cost of liquid fuel compared to grid-battery is the only reason to discuss the electric tractor.

If you try to weasel out of the relative cost of diesel vs grid- battery everyone will know you're a loser as well as a moron.

There is one reason and one reason only to discuss the cost of grid- battery energy:

To compare it with diesel.

To win this debate you'll need to show how diesel power is cheaper than charging batteries and running an electic motor off them.

You cannot so you will try to dodge the issue of diesel costs altogether.

Bret Cahill

Another argument for grid battery tractors. For longer higher power applications, all you really need to rent _or_ buy is another battery in parallel.

There is just no situation where diesel is more cost effective than grid battery.

Not in energy costs, not in labor costs, not in capital costs, not in maintenance costs.

Bret Cahill

Since you persist in being an obstinate mule regarding proper posting form, I don't know to whom you are responding or addressing.

IMHO you are the stupid one for posting this off-topic crap to the s.e.b. Newsgroup.

I mentioned that here last summer. It might take 2 - 3 dozen large expensive battery packs.

But I don't deny even that might eventually be more cost effective than diesel.

The cheapest fastest way to go now is the trolly wire - battery "hybrid."

Batteries can be wired in parallel for fast recharging. So the guy pauses a minute or so at the end of the field . . . no biggie. His job is to make money and he can no longer make money burning 2-oil.

If they are using lasers and GPS they can plow at night. TVA has 7 GW available at 7 cents / kW hr. at night, about 1/4th the cost of diesel power

The SW will soon have a lot of solar anyway.

Bret Cahill

Put out the shoe and the idiots step right in.

Did you miss the response?

That the more diesel the tractor burns the more cost effective it is to switch to battery-grid electric tractors?

Are you just acting dumb or are you really this dumb in real life?

Bret Cahill

't think that full-electric tractors are going to show up

That's why the grid-battery "hybrid" is the most cost effective solution

The tractor never goes very far and can work with a relatively small battery, a couple of Teslas would be more than enough.

The small cell phone or lap top batteries wired in parallel would charge up in a couple of minutes.

rs, and higher in efficiency than gasoline cars.

Diesel power is already 3X more than grid power and the spiraling is _not_ going to stop.

A few percentage points in efficiency over spark ignition will not save diesel.

high power; near the most efficient RPM possible).

They waste tons idling at the end of a field.

Even EVs don't get much either, maybe 20% efficiency.

s to provide high-power for an entire work-day out in the

Sounds like the perfect application for an electric moror.

To drain money out of the farmer's pocket.

back-of-the-envelope calculations, we need a 6-10X

n be matched with equal power and equal weight.

That's why the tractor is recharged each lap. It can get by with a relatively small battery.

Passenger vehicles don't have the option of getting recharged every 6

- 10 minutes.

The electric tractor is a much better application of batteries.

The driving range of a tractor is half a mile with the two wire system on a quarter square.

electric for a while.

A tractor would be easy to prototype.

It's not like retolling a production line for a Prius or Volt.

in diesel-electric locomotives) does save fuel, increases

The savings aren't significant.

I was planning for 6 - 10 an hour.

Every time the tractor makes it across the field or back it recharges.

Every time you decrease the time between charges you decrease battery cost and size.

Road vehicles do _not_ have this option.

X per work day.

Farmers find it acceptable to paying drivers $100 to sit at border crossings to buy diesel at $3/gallon.

Why not instead pay the tractor operator to sit at a line a couple of minutes after each pass?

Bret Cahill