Posted by Eeyore on January 5, 2008, 7:00 pm
Don Lancaster wrote:
> Eeyore wrote:
> >
> > Value @ 10c/kWh = $110 at the low end. So an 11% return on your $1000
invested
> > except it's not just $1000, you have to add installation costs and the cost
of
> > an inverter to use the electricity. That might bring it down to say a 5%
return
> > which is OK I guess.
> At present, the cost of the synchronous inverter alone in many home pv
> installations is often enough to GUARANTEE its consumption of more than
> the value of all electricity sent through it.
That's as pure nonsense as any hydrogen nut ever posted.
OR it's a great product opportunity.
Graham
Posted by Anthony Matonak on January 6, 2008, 1:35 am
Eeyore wrote:
> Don Lancaster wrote:
...
>> At present, the cost of the synchronous inverter alone in many home pv
>> installations is often enough to GUARANTEE its consumption of more than
>> the value of all electricity sent through it.
I would like to see what numbers you used to come to that conclusion.
> That's as pure nonsense as any hydrogen nut ever posted.
> OR it's a great product opportunity.
Why limit the possibilities? It can be both pure nonsense and a great
product opportunity as any snake oil salesman could tell you.
Anthony
Posted by Don Lancaster on January 6, 2008, 9:58 am
Anthony Matonak wrote:
> Eeyore wrote:
>
>> Don Lancaster wrote:
>
> ...
>
>>> At present, the cost of the synchronous inverter alone in many home pv
>>> installations is often enough to GUARANTEE its consumption of more than
>>> the value of all electricity sent through it.
>
>
> I would like to see what numbers you used to come to that conclusion.
>
A present retail price of a seperately bought home synchronous inverter
can easily approach $2500 including installation.
It typically will process four kilowatt hours per day at a retail value
of 80 cents per day or so.
Ten year amortization of a $2500 investment at a 10 percent interest
rate is $1.10 per day or so.
Thus consuming ALL of the value of ALL of the energy sent through it.
And then some. Assuming totally free pv panels.
The longer you run it, the more gasoline you destroy.
http://www.tinaja.com/glib/energfun.pdf
--
Many thanks,
Don Lancaster voice phone: (928)428-4073
Synergetics 3860 West First Street Box 809 Thatcher, AZ 85552
rss: http://www.tinaja.com/whtnu.xml email: don@tinaja.com
Please visit my GURU's LAIR web site at http://www.tinaja.com
Posted by Bob Eld on January 6, 2008, 11:21 am
> Anthony Matonak wrote:
> > Eeyore wrote:
> >
> >> Don Lancaster wrote:
> >
> > ...
> >
> >>> At present, the cost of the synchronous inverter alone in many home pv
> >>> installations is often enough to GUARANTEE its consumption of more
than
> >>> the value of all electricity sent through it.
> >
> >
> > I would like to see what numbers you used to come to that conclusion.
> >
> A present retail price of a seperately bought home synchronous inverter
> can easily approach $2500 including installation.
> It typically will process four kilowatt hours per day at a retail value
> of 80 cents per day or so.
> Ten year amortization of a $2500 investment at a 10 percent interest
> rate is $1.10 per day or so.
> Thus consuming ALL of the value of ALL of the energy sent through it.
> And then some. Assuming totally free pv panels.
> The longer you run it, the more gasoline you destroy.
> http://www.tinaja.com/glib/energfun.pdf
So, where is the "exergy" in this one? It seems to me that you are making a
perverse argument FOR Mook's solar hydrogen or something similar. At least
to the extent the stuff is used as fuel for central station generation and
doesn't add to the infrastructure require by the end user.
Posted by Don Lancaster on January 6, 2008, 2:46 pm
Bob Eld wrote:
>
>>Anthony Matonak wrote:
>>
>>>Eeyore wrote:
>>>
>>>
>>>>Don Lancaster wrote:
>>>
>>>...
>>>
>>>
>>>>>At present, the cost of the synchronous inverter alone in many home pv
>>>>>installations is often enough to GUARANTEE its consumption of more
>
> than
>
>>>>>the value of all electricity sent through it.
>>>
>>>
>>>I would like to see what numbers you used to come to that conclusion.
>>>
>>
>>
>>A present retail price of a seperately bought home synchronous inverter
>>can easily approach $2500 including installation.
>>
>>It typically will process four kilowatt hours per day at a retail value
>>of 80 cents per day or so.
>>
>>Ten year amortization of a $2500 investment at a 10 percent interest
>>rate is $1.10 per day or so.
>>
>>Thus consuming ALL of the value of ALL of the energy sent through it.
>>And then some. Assuming totally free pv panels.
>>
>>The longer you run it, the more gasoline you destroy.
>>
>>http://www.tinaja.com/glib/energfun.pdf
>
>
> So, where is the "exergy" in this one? It seems to me that you are making a
> perverse argument FOR Mook's solar hydrogen or something similar. At least
> to the extent the stuff is used as fuel for central station generation and
> doesn't add to the infrastructure require by the end user.
>
Actually there was a factor of two error above. Should be forty cents a
day production.
No particular exergy, as the price of the inverters should eventually
drop into the nine dollar range given a unified and quantity demand.
Latest analysis at http://www.tinaja.com/whtnu08.asp
--
Many thanks,
Don Lancaster voice phone: (928)428-4073
Synergetics 3860 West First Street Box 809 Thatcher, AZ 85552
rss: http://www.tinaja.com/whtnu.xml email: don@tinaja.com
Please visit my GURU's LAIR web site at http://www.tinaja.com
XML site map
> >
> > Value @ 10c/kWh = $110 at the low end. So an 11% return on your $1000