Subject Re: [Firebird-general] A car that could save the planet-fast
Author Hannes Streicher
Guten Tag Claudio Valderrama C.,

>> -----Original Message-----
>> From:
>> []On Behalf Of Leyne, Sean
>> Sent: Miercoles, 11 de Julio de 2007 12:11
>> > Subject: [Firebird-general] A car that could save the planet-fast
>> I don't think so!
>> Not unless the electricity to charge the batteries is from solar, wind,
> ...

> It seems the technlogy is already here:

photovoltaic solar cells require so much energy during their
production that they take between 50% to 80% of their usable live to produce
this energy again ,
add to this the amount of energy needed for the production of the controllers and
batteries to store the electricity then the whole system comes out
with a negative energy balancesheet
(this is based on average central european sunshine duration and
intensity )

photovoltaic systems are only usefull where there is no other power
source , or when you save on laying long wiring

solar power is at the moment best used in producing warm water
for electric power on a large scale heating water (or other
liquids) to drive regular steam turbines

this is off topic for this list , so any comments are welcome but
please off the list

Mit freundlichen GrĂ¼ssen / with best regards
Hannes Streicher mailto:HStreicher@...