On Sun, 13 May 2007 22:33:39 -0700, XS11E wrote:

> Bob Officer <bobofficers@127.0.0.7> wrote:
>
>> On Sun, 13 May 2007 12:39:01 -0700, in
>> rec.autos.makers.jeep+******, XS11E <xs11eNO@SPAMyahoo.com> wrote:
>>>Anyone know if that's true or not?
>>
>> not true.
>
> References? I got it from a pretty reliable source.


http://www.windsun.com/Grid_Tie/solar_econ.htm

http://www.solarexpert.com/grid-tie/...advantges.html

Links:

http://en.wikipedia.org/wiki/Solar_panel

 

Starting next year the will pay for themselves over their life time:
http://www.technologyreview.com/Energy/18415/
Energy pay-back time, i.e. the time required to produce an amount of energy
as great as what was consumed during production.
http://en.wikipedia.org/wiki/Photovoltaics
God Bless America, Bill O|||||||O
mailto:-------------------- http://www.----------.com/


"XS11E" <xs11eNO@SPAMyahoo.com> wrote in message
news:Xns992F80AFCC7FCxs11eyahoocom@69.28.173.184
>
> I don't know for sure, but I've heard that solar panels require more
> energy to manufacture than they can produce over their entire life
> span.
>
> Anyone know if that's true or not?
>



--
Posted via a free Usenet account from http://www.teranews.com

 

Starting next year the will pay for themselves over their life time:
http://www.technologyreview.com/Energy/18415/
Energy pay-back time, i.e. the time required to produce an amount of energy
as great as what was consumed during production.
http://en.wikipedia.org/wiki/Photovoltaics
God Bless America, Bill O|||||||O
mailto:-------------------- http://www.----------.com/


"XS11E" <xs11eNO@SPAMyahoo.com> wrote in message
news:Xns992F80AFCC7FCxs11eyahoocom@69.28.173.184
>
> I don't know for sure, but I've heard that solar panels require more
> energy to manufacture than they can produce over their entire life
> span.
>
> Anyone know if that's true or not?
>



--
Posted via a free Usenet account from http://www.teranews.com

 

Starting next year the will pay for themselves over their life time:
http://www.technologyreview.com/Energy/18415/
Energy pay-back time, i.e. the time required to produce an amount of energy
as great as what was consumed during production.
http://en.wikipedia.org/wiki/Photovoltaics
God Bless America, Bill O|||||||O
mailto:-------------------- http://www.----------.com/


"XS11E" <xs11eNO@SPAMyahoo.com> wrote in message
news:Xns992F80AFCC7FCxs11eyahoocom@69.28.173.184
>
> I don't know for sure, but I've heard that solar panels require more
> energy to manufacture than they can produce over their entire life
> span.
>
> Anyone know if that's true or not?
>



--
Posted via a free Usenet account from http://www.teranews.com

 

Starting next year the will pay for themselves over their life time:
http://www.technologyreview.com/Energy/18415/
Energy pay-back time, i.e. the time required to produce an amount of energy
as great as what was consumed during production.
http://en.wikipedia.org/wiki/Photovoltaics
God Bless America, Bill O|||||||O
mailto:-------------------- http://www.----------.com/


"XS11E" <xs11eNO@SPAMyahoo.com> wrote in message
news:Xns992F80AFCC7FCxs11eyahoocom@69.28.173.184
>
> I don't know for sure, but I've heard that solar panels require more
> energy to manufacture than they can produce over their entire life
> span.
>
> Anyone know if that's true or not?
>



--
Posted via a free Usenet account from http://www.teranews.com

 

"Shirley U. Jeste" <dontcallmeshirley@anytime.bud> wrote:

> On Sun, 13 May 2007 22:33:39 -0700, XS11E wrote:
>
>> Bob Officer <bobofficers@127.0.0.7> wrote:
>>
>>> On Sun, 13 May 2007 12:39:01 -0700, in
>>> rec.autos.makers.jeep+******, XS11E <xs11eNO@SPAMyahoo.com>
>>> wrote:
>>>>Anyone know if that's true or not?
>>>
>>> not true.
>>
>> References? I got it from a pretty reliable source.
>
>
> http://www.windsun.com/Grid_Tie/solar_econ.htm
>
> http://www.solarexpert.com/grid-tie/...advantges.html
>
> Links:
>
> http://en.wikipedia.org/wiki/Solar_panel

Thanks, but neither address the issue which isn't the monetary cost of
generating electricity, comparing conventional vs. solar panels but the
*ENERGY* cost of manufacturing the solar panels. Dollars don't enter
into the equation at all.

IE, if a solar panel can generate 1 MegaWatt during it's lifetime but
requires 1.2 MegaWatt to manufacture, it's a losing proposition, and
that's what I've heard (although the numbers I just made up for
reference.)

The information came from an engineer working for Motorola on similar
projects at the time. I'm sure there are improvements in manufacturing
techniques since but who knows?

That's what I'm trying to find out.....

 

"Shirley U. Jeste" <dontcallmeshirley@anytime.bud> wrote:

> On Sun, 13 May 2007 22:33:39 -0700, XS11E wrote:
>
>> Bob Officer <bobofficers@127.0.0.7> wrote:
>>
>>> On Sun, 13 May 2007 12:39:01 -0700, in
>>> rec.autos.makers.jeep+******, XS11E <xs11eNO@SPAMyahoo.com>
>>> wrote:
>>>>Anyone know if that's true or not?
>>>
>>> not true.
>>
>> References? I got it from a pretty reliable source.
>
>
> http://www.windsun.com/Grid_Tie/solar_econ.htm
>
> http://www.solarexpert.com/grid-tie/...advantges.html
>
> Links:
>
> http://en.wikipedia.org/wiki/Solar_panel

Thanks, but neither address the issue which isn't the monetary cost of
generating electricity, comparing conventional vs. solar panels but the
*ENERGY* cost of manufacturing the solar panels. Dollars don't enter
into the equation at all.

IE, if a solar panel can generate 1 MegaWatt during it's lifetime but
requires 1.2 MegaWatt to manufacture, it's a losing proposition, and
that's what I've heard (although the numbers I just made up for
reference.)

The information came from an engineer working for Motorola on similar
projects at the time. I'm sure there are improvements in manufacturing
techniques since but who knows?

That's what I'm trying to find out.....

 

"Shirley U. Jeste" <dontcallmeshirley@anytime.bud> wrote:

> On Sun, 13 May 2007 22:33:39 -0700, XS11E wrote:
>
>> Bob Officer <bobofficers@127.0.0.7> wrote:
>>
>>> On Sun, 13 May 2007 12:39:01 -0700, in
>>> rec.autos.makers.jeep+******, XS11E <xs11eNO@SPAMyahoo.com>
>>> wrote:
>>>>Anyone know if that's true or not?
>>>
>>> not true.
>>
>> References? I got it from a pretty reliable source.
>
>
> http://www.windsun.com/Grid_Tie/solar_econ.htm
>
> http://www.solarexpert.com/grid-tie/...advantges.html
>
> Links:
>
> http://en.wikipedia.org/wiki/Solar_panel

Thanks, but neither address the issue which isn't the monetary cost of
generating electricity, comparing conventional vs. solar panels but the
*ENERGY* cost of manufacturing the solar panels. Dollars don't enter
into the equation at all.

IE, if a solar panel can generate 1 MegaWatt during it's lifetime but
requires 1.2 MegaWatt to manufacture, it's a losing proposition, and
that's what I've heard (although the numbers I just made up for
reference.)

The information came from an engineer working for Motorola on similar
projects at the time. I'm sure there are improvements in manufacturing
techniques since but who knows?

That's what I'm trying to find out.....

 

"Shirley U. Jeste" <dontcallmeshirley@anytime.bud> wrote:

> On Sun, 13 May 2007 22:33:39 -0700, XS11E wrote:
>
>> Bob Officer <bobofficers@127.0.0.7> wrote:
>>
>>> On Sun, 13 May 2007 12:39:01 -0700, in
>>> rec.autos.makers.jeep+******, XS11E <xs11eNO@SPAMyahoo.com>
>>> wrote:
>>>>Anyone know if that's true or not?
>>>
>>> not true.
>>
>> References? I got it from a pretty reliable source.
>
>
> http://www.windsun.com/Grid_Tie/solar_econ.htm
>
> http://www.solarexpert.com/grid-tie/...advantges.html
>
> Links:
>
> http://en.wikipedia.org/wiki/Solar_panel

Thanks, but neither address the issue which isn't the monetary cost of
generating electricity, comparing conventional vs. solar panels but the
*ENERGY* cost of manufacturing the solar panels. Dollars don't enter
into the equation at all.

IE, if a solar panel can generate 1 MegaWatt during it's lifetime but
requires 1.2 MegaWatt to manufacture, it's a losing proposition, and
that's what I've heard (although the numbers I just made up for
reference.)

The information came from an engineer working for Motorola on similar
projects at the time. I'm sure there are improvements in manufacturing
techniques since but who knows?

That's what I'm trying to find out.....

 

XS11E wrote:

> "Shirley U. Jeste" <dontcallmeshirley@anytime.bud> wrote:
>
>> On Sun, 13 May 2007 22:33:39 -0700, XS11E wrote:
>>
>>> Bob Officer <bobofficers@127.0.0.7> wrote:
>>>
>>>> On Sun, 13 May 2007 12:39:01 -0700, in
>>>> rec.autos.makers.jeep+******, XS11E <xs11eNO@SPAMyahoo.com>
>>>> wrote:
>>>>>Anyone know if that's true or not?
>>>>
>>>> not true.
>>>
>>> References? I got it from a pretty reliable source.
>>
>>
>> http://www.windsun.com/Grid_Tie/solar_econ.htm
>>
>> http://www.solarexpert.com/grid-tie/...advantges.html
>>
>> Links:
>>
>> http://en.wikipedia.org/wiki/Solar_panel
>
> Thanks, but neither address the issue which isn't the monetary cost of
> generating electricity, comparing conventional vs. solar panels but the
> *ENERGY* cost of manufacturing the solar panels. Dollars don't enter
> into the equation at all.
>
> IE, if a solar panel can generate 1 MegaWatt during it's lifetime but
> requires 1.2 MegaWatt to manufacture, it's a losing proposition, and
> that's what I've heard (although the numbers I just made up for
> reference.)
>
> The information came from an engineer working for Motorola on similar
> projects at the time. I'm sure there are improvements in manufacturing
> techniques since but who knows?
>
> That's what I'm trying to find out.....

Well, the end-user price of any device is a fairly decent measure of the
energy used to produce it - they don't get that energy free and they sure
as heck aren't going to lose money on the sale if they can help it. Fast
way to get a WAG is to divide the continuous output into the price (assumes
the whole cost of producing it is energy) and see how long you would have
to use the device to recover the cost. To be realistic, divide the cost of
the device by 3 (since you are probably talking retail price) and repeat
the calculation. Even my little 500 ma jobs reach 100% payback in a
reasonable time and there is certainly no economy of scale there!

--
Will Honea