On 10/11/2017 8:08 PM, Unum wrote:
> On 10/11/2017 5:37 PM, BumbleBee wrote:
>> On 10/11/2017 2:11 PM, Unum wrote:
>>> On 10/11/2017 2:45 AM, Paul Aubrin wrote:
>>>> On Wed, 11 Oct 2017 02:57:06 +0000, Doc O'Leary wrote :
>>>>
>>>>>> Besides that wind and solar are fatal energies: they don't produce on
>>>>>> demand.
>>>>>
>>>>> Neither do conventional fuels. And if you want to produce a genuine
>>>>> *fossil* fuel, oh *buddy* do you have a big lag on that demand!
>>>>
>>>> False. Fossil fuel powered plants produce /on demand/. Wind and solar
>>>> plants cannot. You can't turn on the wind when you need it.
>>>
>>> That's a lie, fossil fuel plants don't produce "on demand".
>>
>> Of course they do!
>
> Prove it.
Ave you visited any coal plants, ever?
Nat. gas?
Nuke?
Flip the fuggin' switch, moron.
>>> They may or
>>> may not be able to fire up and produce at any given time for a variety
>>> of reasons.
>>
>> But most produce a steady baseline flow.
>
> That isn't 'on demand'.
Of course it is.
Customers demand energy all day.
They can't demand solar at night, now can they?
>>> NG peaker plants are generally capable of spinning up
>>> quickly, but there's no guarantee and the power is relatively expensive.
>>
>> That's for brownout and emergency needs, duh.
>
> You don't know a damn thing about this.
You get your ass handed to you than retreat to accuse.
>>> Also, there are many reported instances of renewable energy generation
>>> in excess of 60% of the total production for extended times. Nothing
>>> "fatal" about that.
>>
>> Talk to Germany, it has fucked them all up.
>
> Sounds like the usual brainless personal opinion.
Or MIT's:
https://www.technologyreview.com/s/601514/germany-runs-up-against-the-limits-of-renewables/
Germany Runs Up Against the Limits of Renewables
Even as Germany adds lots of wind and solar power to the electric grid,
the country’s carbon emissions are rising. Will the rest of the world
learn from its lesson?
by Richard Martin May 24, 2016
88
At one point this month renewable energy sources briefly supplied close
to 90 percent of the power on Germany’s electric grid. But that doesn’t
mean the world’s fourth-largest economy is close to being run on
zero-carbon electricity. In fact, Germany is giving the rest of the
world a lesson in just how much can go wrong when you try to reduce
carbon emissions solely by installing lots of wind and solar.
After years of declines, Germany’s carbon emissions rose slightly in
2015, largely because the country produces much more electricity than it
needs. That’s happening because even if there are times when renewables
can supply nearly all of the electricity on the grid, the variability of
those sources forces Germany to keep other power plants running. And in
Germany, which is phasing out its nuclear plants, those other plants
primarily burn dirty coal.
Now the government is about to reboot its energy strategy, known as the
Energiewende. It was launched in 2010 in hopes of dramatically
increasing the share of the country’s electricity that comes from
renewable energy and slashing the country’s overall carbon emissions to
40 percent below 1990 levels by 2020 (see “The Great German Energy
Experiment”). What happens next will be critical not only for Germany,
but also for other countries trying to learn how to best bring more wind
and solar online—especially if they want to do it without relying on
nuclear power.
Germany has struggled to manage its surge in solar and wind capacity.
Some aspects of the Energiewende have been successful: renewable sources
accounted for nearly one-third of the electricity consumed in Germany in
2015. The country is now the world’s largest solar market. Germany’s
carbon emissions in 2014 were 27 percent lower than 1990 levels.
However, an expert commission appointed by the country’s minister of
economy and energy has said the 40 percent target probably won’t be
reached by 2020. And the energy revolution has caused problems of its
own. Because fossil-fuel power plants cannot easily ramp down generation
in response to excess supply on the grid, on sunny, windy days there is
sometimes so much power in the system that the price goes negative—in
other words, operators of large plants, most of which run on coal or
natural gas, must pay commercial customers to consume electricity. That
situation has also arisen recently in Texas and California (see “Texas
and California Have Too Much Renewable Energy”) when the generation of
solar power has maxed out.
In hopes of addressing such issues, Germany’s Parliament is expected to
soon eliminate the government-set subsidy for renewable energy, known as
a feed-in tariff, that has largely fueled the growth in wind and solar.
Instead of subsidizing any electricity produced by solar or wind power,
the government will set up an auction system. Power producers will bid
to build renewable energy projects up to a capacity level set by the
government, and the resulting prices paid for power from those plants
will be set by the market, rather than government fiat.