alt.energy.renewable

"Anthony Matonak" ha scritto nel
messaggio news:47b55326$0$30711$4c368faf@roadrunner.com...
> Antonio Fili wrote:
>> "Peter B. P." ha scritto nel messaggio
> ...
>>> I'd love solar panels when their effeciency passes 25%. Today that are
>>> at best 16% for consumer-viable panels.
>>
>> The problem with PV is not necessarily the efficiency but the costs, even
>> a lower efficiency PV technology is welcome if it costs less than 1 $ per
>> watt of peak, otherwise PV electricity is not competitive with any fossil
>> fuels or nuclear scheme, considering its low capacity factor
>
> I agree that it's the cost, not the efficiency, that's the issue with
> solar PV. Even 5% thin film panels are efficient enough for most folks.
>
> That said, the United States military has a research project aimed at
> producing 50% efficient PV and I've heard they are getting close.
> http://www.scienceagogo.com/news/20070625035707data_trunc_sys.shtml


But I don' t see the envisaged costs of production (indeed, prices and costs
are not the same)

> Lastly, while PV electricity at $3/watt (todays lowest price) may not
> compete with fossil fuel (coal) and nuclear power plants, there aren't
> many places that let homeowners operate such plants.


Well, iirc there are 6-7 peak GWe of PV around the world, half of which in
electrical isolated areas