Grid-Battery "Hybrid" Tractors

[John Fields]

On Sun, 10 Aug 2008 20:45:21 -0700 (PDT), BretCahill@peoplepc.com
wrote:

I DID find a manufacturers folder that reports 119 kWh/kg (better than NiMH) :

Energy density just isn't a factor when you can recharge or swap out
batteries several times/hr.

. . .

Electric drive (like the Caterpillar tractor mentioned earlier) make much more sense currently for efficiency and torque
improvements on big-ass farm equipment.

We really need a tractor pull to show a 350 lb battery just isn't a
big deal.

It is not 350 pounds.

It's more like 300 lbs max.

Using the numbers posted in the thread
(300kWh equivalent tractor,

What part of "frequent recharge" do you NOT unnerstand?

What part of "equivalent tractor" do you NOT understand?

The part where it makes sense to pay $12/gallon for diesel.

Next question?

---
What makes you take criticism so badly when you know you're wrong?

JF