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Re: [RMX:#] (ET) 48v ET

Mmm.... Hate to say it, but on the EV lists we have become skeptical of super battery claims and the like. The problem isn't so much that people get ripped off as they delay doing things because a "better solution" is just around the corner. 

Except it never seems to come, and the existing technology is just fine.
Go with polycrystaline. It's reliable, solid, and under 3 bucks a watt. Don't chase after waterfalls. 

Chris

Dave Reuter wrote:


Hi Robert,

I remember just a few weeks ago reading about a company that is tooling up
to start producing  wafers that will reduce the cost of PV panels to 20% of
the cost of todays panels. Apparently they have found a process that allows
for a much lower manufacturing cost of the wafer. I'll have to see if I can
find this article again. I think they said it is still a few years out
before these panels get to the consumers due to testing and so forth. And
one concern of theirs was will the final distributor past the cost savings
to the customers.

Dave Reuter
robert winfield <winfield100@yaho o.com> To Sent by: elec-trak cosmos phy tufts edu elec-trak-bounces cc @cosmos.phy.tufts .edu Subject [RMX:#] (ET) 48v ET 05/28/2004 09:04 AM 



Is a 48v ET doable? It would make things much simpler.
I could yank out that dratted charger and squeeze 4
batteries in that area. E12
Obviously it wouldn't void the warrenty but would it
fry the components with 33% more voltage. (visions of
Tim "tooltime" breaking stuff)
I am setting up Photovoltaics to do my charging
(shortage of big wattage PV in the US, Germany, soon
Italy and Spain are greening their countries with
federal subsidies so our prices are up)
24 and 48 volts seem a lot easier to get components
for

--- Anton Berteaux <krustyacres earthlink net> wrote:


also very much less efficient, and most of the
better quality (read
expensive ) electronic inverters are very close to
sine wave with less
distortion than a generator.
I would up the system voltage to 48, which allows
use of many off the
shelf inverters, and makes you go faster, too.
anton

On May 27, 2004, at 10:46 AM, Dan Conine wrote:



A rotary inverter (in this case) is a 36VDC motor


which is run by the


tractor. The motor is directly coupled to a 110VAC


generator.


You get perfect sinusoidal power, vs. the


psuedo-simulated(modified


sine wave) power from a solid-state inverter.


Simple, relatively easy


to repair if you are living with a soldering iron


and a roll of magnet


wire, and  civilization is gone.
Disadvantage: brushes, bearings, armatures wear


out.


Dan Conine
42
E15, E10
Belgium,WI


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