sci.energy

EskWIRED@ wrote:
> In Don Lancaster wrote:
>
>>Jeff?Relf wrote:
>>
>>>Re:
>>>/tol/news/tech_and_web/gadgets_and_gaming/
>>>
>>>In summary, one can use solar cells to charge a battery,
>>>which ( in turn ) charges a hydrogen fuel cell
>>>to run a tiny ? concept car ?. But will it ever become practical ?
>>>
>
>
>>http://www./glib/
>
>
> I'm reading your paper. It presents interesting concepts.
>
> But one question I have is why you consider electricity from excess
> capacity (like at midnight on a mild night) to have the same exery as
> electricity during times of great demand, like on hot august afternoons?
>

The exergy in both instances is exactly the same, because the reversibly
recoverable fraction of the energy in its present form is exactly the same.

> For example, you point to the fact that PV peaking plants don't exist.
> You say that this is proof that PV is less efficient than fossil fuels.
> But you ignore that it is nuts to rely on intermittent sources for peaking
> plants - for a number of reasons.
>
>
By definition, peaking plants ARE intermittent sources.
ALWAYS.

http://www./glib/


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