On 2017-07-03, xyzzy <
xyzzy...@gmail.com> wrote:
> On Sunday, July 2, 2017 at 12:04:22 PM UTC-4, Con Reeder, unhyphenated American wrote:
>> On 2017-07-02,
plai...@gmail.com <
plai...@gmail.com> wrote:
>> > It's a good point, but on the other hand, if a solar energy farm
>> > blows a gasket, you don't have to wait 40,000 years to make repairs.
>> > Also, disposing of spent solar panels is a much simpler task than
>> > spent fuel rods.
>>
>> I disagree. The volume of disposal per megawatt is several orders of magnitude
>> worse, which introduces problems of its own. The task is different, and not
>> really simpler once you adjust for that and you have a suitable repository
>> for the expended fuel.
>>
>
> it's an interesting discussion with a lot that goes into it. More than
> the volume of waste per kwh produced, also have to consider how nasty
> that waste is. I like the way the article says it only takes a few
> thousand year before most nuclear waste is inert. Practically benign!
>
> The other question is how accident prone each is. Solar plants are
> relatively simple and passive. Most of them operate fine with no
> operator on site.
But at what efficiency levels? If you grant the most modern technology,
they may be pretty troublefree. But ....
> Nuclear plants are complex and have a zillion moving parts that all
> have to operated exactly correctly at all times or disaster ensues.
... that is also true for the newer nuclear plants. They are pretty
failsafe. They definitely require trained management, but they aren't
really prone to disaster in normal operation.
> btw I'm a fan of both nuclear and solar. But we have to acknowledge
> the dangers and drawbacks of both. The cited article is good for not
> letting people forget those for solar, because disposals of obsolete
> panels is something people don't tend to think about like nuclear
> waste. But it also reminds me of a WSJ snark in the 1990s, they were
> snarking on liberal musicians and posited that CDs would be the toxic
> waste crisis of the future. Still hasn't happened.
There are many many variables. The land utilization for solar sucks, for
example. It requires more maintenance than people grant, because
they are degraded by dirt and other contamination of the panels and
dealing with that (or not dealing with it) costs. Security and defense
against animals has to be dealt with. Considering the very low energy
density of solar, these are significant factors that are ignored.
Unfortunately, very few people are educated about these things, and
the most fervent "environmentalists" seem to be about the worst, as they
are impervious to information, making decisions like religious zealots
reading some modern-day bible. But their bibles are often decades-old
activist screed.
As an example, there are tons of living room environmentalists who
insist we need to recycle because we are running out of landfill
space, or that fuel to haul trash is killing our planet with "carbon
pollution". A greater bunch of horsehockey has rarely been uttered, yet
they cite it like it is gospel.
--
"I find that a great part of the information I have was acquired
by looking up something and finding something else on the way."
-- Franklin Pierce Adams