January 1, 2014

Have a fascist new year.

In a year-end wrap-up of U.S. politics last week, which I caught on NPR by chance, the guest noted how both Democrats and Republicans have lost favor. The host, oblivious to reality, or perhaps determinedly fending it off, asked if this provided an opportunity for a third party, "something more centrist".

In that question, he persisted in the story line that the Democrats are the party of the left and the Republicans the party of the right, which has in fact never been true. The Democrats and Republicans as a whole have always marched hand in hand as two faces of one imperial capitalist party, sometimes playing the game as understood by the NPR host to keep their control. Thus, for example, during campaigns, if not while governing, Democrats once reached out to unions, Republicans to the upwardly mobile. It shifts with time and demographics, but the parties deftly divide the market between them.

There is no "center" between them. They represent two styles of imperial capitalism. Occasional individuals may break ranks on single issues, but they dare not truly break away and challenge the narrow range of action allowed by this system, let alone the assumptions of hegemonic exploitation as necessary to their comfort.

What the NPR host lacked is perspective, perhaps honesty. The center is not between the two imperial capitalist parties, but between the people and that government. The center is not some magic place of smorgasbord compromise, but a place of mediation. It is real government in communication with the people, not as targets of marketing to keep them buying a bill of goods, but as citizens.

It is the difference between democracy and fascism.

human rights, animal rights, anarchism, anarchosyndicalism

December 30, 2013

Wind displaces hydro, not fossil fuels

As a follow-up to an earlier post looking at the generation patterns in Spain and northwestern USA, here are a couple more pictures:


It's pretty clear from the Spanish graph that it is hydro power that is varied in response to fluctuation of demand as well as of wind power.

And the same thing is clear from the Bonneville graph: It is hydro power that is varied in response to both demand and changing wind. The thermal power generation line remains virtually constant.

In other words, wind power on the grid is not reducing the use of fossil fuels.

wind power, wind energy, environment, environmentalism

December 18, 2013

Sleep clears brain of toxic metabolites

Anthony Komaroff writes in New England Journal of Medicine Journal Watch:

We all know that without enough sleep, mood and cognition are impaired. Certain central nervous system conditions, including migraines and seizures, become more frequent and severe with a lack of sleep. When animals are kept from sleeping, they ultimately die.

Clearly, we need to sleep. But why? In a study in the October 18, 2013, issue of Science (http://dx.doi.org/10.1126/science.1241224), researchers report on a technique they developed for measuring the interstitial space in the brains of living mice. That space is bathed by cerebrospinal fluid that is produced by the choroid plexus and pumped back into the blood in the meninges. The researchers found that, during sleep and anesthesia, the interstitial space increased by 60%. The functional result of this expansion is that many metabolites of neurons and glial cells that spill into the interstitial space are cleared from the space much more rapidly, enter the blood, and are detoxified by the liver. These molecules include β‐amyloid and tau, which build up in the brains of patients with Alzheimer disease. When sleeping animals are aroused, the clearance of toxic metabolites slows markedly.

The researchers speculate that, at least in mice, the buildup of toxic metabolites in the interstitial space in the brain is a trigger for sleep, and that a key purpose of sleep is to clear these metabolites. Maybe the reason we feel restored after a good night’s sleep is because the brain has freed itself of toxins. This hypothesis is arresting in its simplicity and could prove to be profoundly important in human biology (http://dx.doi.org/10.1126/science.1245798).

Emily Underwood comments:

Scientists have long speculated that one of the functions of sleep is to restore and repair the brain, but whether this is a “core” purpose of sleep remains controversial. Now, a paper published in Science this week on page 373 provides direct experimental evidence that the mouse brain cleans itself during sleep, by expanding channels between neurons that allow an influx of cerebrospinal fluid. The fluid flushes out detritus such as amyloid proteins, which accumulate as plaques in Alzheimer's disease, twice as fast when mice are sleeping as when they are awake.

Suzana Herculano-Houzel comments:

We know from personal experience that sleep is not just another brain state but a basic requirement for normal brain function while we are awake. Mental fatigue, poor decision-making, impaired learning, and a heightened risk of migraine and epileptic attacks ensue when we are sleep deprived — and chronic and complete insomnia ultimately lead to death in humans, rats, and flies alike. Why does normal brain function deteriorate with prolonged waking and require sleep to be restored? On page 373 in this issue, Xie et al. report that during sleep, waste products of brain metabolism are removed from the interstitial space among brain cells where they accumulate. Sleep, therefore, might be required for potentially toxic metabolites — the very results of a working brain — to be cleared from the tissue.

human rights

December 11, 2013

“Lewd, lascivious, salacious — outrageous!”

Remember Jackie Chiles, Kramer’s Johnny Cochran–like attorney in Seinfeld who in affected dudgeon characterized every situation with a set of at least three hyperbolic adjectives? I've been noticing that this is not uncommon among defenders of corporate wind ...

“Give this article [about the nocebo effect] to an anti-windpower campaigner and watch denial, evasion and anger set in.”

“I lay blame on those who ideologically spread fear, doubt and pseudoscience.”

“Anti-wind lobbyists spread fear, disharmony and anger.”

“You've stepped into a bit of a cesspool. Expect abuse and frothing. Despite this, they keep making the same unreferenced and unsupported comments in threads like this, without nuance or evidence of learning. Haters gotta hate.
[not exactly in the pattern, but squarely in the spirit: cesspool, abuse, frothing, unreferenced, unsupported, without nuance, without evidence of learning]

“So you [give victims of wind turbine noise more sympathetic treatment] through plagiarism, misrepresentation and deception? There's no merit in being conniving and manipulative. ... stealing, doctoring and misappropriating someone else's work”

wind power, wind energy, human rights, animal rights,

November 22, 2013

Questions and Answers: What's wrong with wind energy?

1. The National Wind Watch home page says, “because of the wind’s low density, intermittency, and high variability, [large-scale wind turbines] do next to nothing for reducing carbon and other emissions or dependence on other fuels”. Could you go into a bit more detail about this and present any links you have for evidence?

The power of the wind is 1/2 of area (turbine rotor diameter) × air density × wind speed cubed. There is a theoretical physical limit (Betz’ law) that no more than 16/27, or 59.3%, of the wind’s energy (power × time) can be captured. Modern wind turbines may reach 50% efficiency, but only within a certain range of wind speeds, which appear to be the average speeds for which the turbines are designed, but at which speeds they generate at only a fraction (around 1/3) of their maximum rate. As the wind speed increases, the rotors are increasingly feathered and efficiency plummets.

The brochure for Enercon turbines includes graphs showing the efficiency vs. wind speed.

In addition to being limited by Betz’ law, wind turbines must not interfere with each other, so they must be spaced quite far apart. The minimum distance is generally considered to be 3 rotor diameters perpendicular to the wind (possible only where wind is unidirectional) and 10 rotor diameters parallel to the wind. See, eg, www.wind-watch.org/documents/?p=984. Thus in an array of, say, 90-meter-diameter turbines (the blades of each machine sweeping a vertical airspace of 1.57 acres), each machine would require 810,000 square meters around it, or 200 acres. From that 200 acres, assuming a 2-MW turbine and an average rate of generation 25% of capacity (see https://wind-watch.org/doc/?p=3427 for U.S. averages; they are generally quite a bit less in Europe), the average power density is only 2.5 kW/acre.

Furthermore, that wind energy is intermittent, meaning other sources of electricity must be available, and variable, meaning other sources must be kept running to be ramped up and down as needed to keep the electricity supply exactly matched to demand. This means that wind is only adding to the grid and then causing other generators to run less efficiently, including burning fuel while not generating electricity. See http://kirbymtn.blogspot.com/2013/10/us-co-emissions-for-electricity-from.html and http://kirbymtn.blogspot.com/2013/11/how-much-does-wind-energy-reduce-carbon.html

2. Pertaining to health — I’ve heard very mixed messages about whether the health effects are of legitimate concern and I would like to hear your take on it. ... Any scientific information would be great!

21 published (peer-reviewed) studies: http://wndfo.net/wts
10 non-industry, non-government reviews: http://wndfo.net/revs

One hitch has been the term “annoyance” as used in these studies. In epidemiology it means to a degree that can cause health problems. The wind industry has instead used its colloquial meaning to characterize the problem as something people just need to get used to.

Even that flies in the face of the evidence that infrasound (frequencies below the threshold of conscious hearing) and low-frequency noise (ILFN) is probably responsible for much of the problem, because research suggests that people who are sensitive to ILFN become more sensitized with continued exposure.

The research showing that people complain more about wind turbine noise than other artificial sources at similar decibel levels is probably explained by the facts that it is unpredictable (depending on wind speed and direction), that it often occurs at night, and that it is a pulsating noise.

Basically, the wind industry is trying to stop research as it has just begun. Because, as the reviews conclude, the preliminary research clearly justifies concern and is already leading to revisions of noise regulations to consider lower frequencies and pulsating patterns. And if such regulations are justified for humans, they would also have to be considered for wildlife ...

3. For my own sanity, I’m wondering why on earth there is so much controversy! How can there be such polar opposite opinions and what is the truth ... in your opinion?

There is a lot of desperation and urgency to remedy the consequences of our high level of energy consumption, and big wind has exploited that, ever since Enron first realized that it could sell wind to environmentalists as an alternative to coal. Since concern about climate change came to dominate mainstream environmentalism after Al Gore’s movie, wind energy has been sold as our salvation. It became a “with us or against us” marker of one’s concern for the environment or sociopolitical team loyalty. Its own adverse impacts (mining, birds and bats, wild habitat) are then dismissed simply as being much less than those of fossil fuels (the other team), ignoring the fact the the reduction of fossil fuel burning because of wind energy is effectively nil, making wind’s impacts — many of them unique, such as the threats to raptors and bats, and the need to build over hundreds of acres at a time in rural and wild places — an addition, not an alternative. Even the American Wind Energy Association once admitted that the most ambitious wind program would only slow the increase of carbon emissions. And for greenhouse gases, there are still the problems of transport and heating. And animal agriculture. And hydrofluorocarbons.

The truth is that there is no free lunch. By approaching the problem with building more instead of using less, wind energy is only perpetuating it. And while people look to wind energy to save the planet, they are more likely to avoid doing things that would make a real difference. They are able to buy Enron-invented “green tags” (carbon credits) to “offset” their impact rather than actually reduce it.

So the polarity is indeed justified and inevitable. Once somebody realizes that wind is a nonsolution, and harmful itself without meaningfully mitigating other harms, it is clear that there is hardly a “middle ground”. And once someone who believes in wind starts to admit that it has drawbacks or that claims for its benefits are overblown, a cornerstone of mainstream environmentalism starts to crumble — and retrenchment becomes all the more fierce to avoid complicating “the message”.

4. One more question: What are viable solutions instead of wind energy, and if wind energy is here to stay what kind of regulations or changes are needed for it to be successful?

Frankly, there probably isn’t a viable solution right now to 8 billion humans consuming ever more resources, particular in a world economic model of “growth”, which even with the modifier “sustainable” is still growth — growth of consumption, growth of waste, and less for the rest of life on the planet. Thursday's Democracy Now had a couple of climate scientists on calling for radical change from that model: www.democracynow.org/2013/11/21/we_have_to_consume_less_scientists.

As for the potential success of wind energy, it would require not only massive building of wind turbines (and all the resources they require) but also an even more massive battery backup system (and all the more resources) and a massive expansion of continent-wide high-capacity transmission lines. In other words, it’s ridiculous. Virtually everything would have to be turned over to wind energy. We would have instead of a war economy a wind economy, where wind energy powers primarily the maintenance of wind power. And we’d still need backup generators!

H.G. Wells wrote, in 1897, “A Story of the Days to Come”:

And all over the countryside, he knew, on every crest and hill, where once the hedges had interlaced, and cottages, churches, inns, and farmhouses had nestled among their trees, wind wheels similar to those he saw and bearing like vast advertisements, gaunt and distinctive symbols of the new age, cast their whirling shadows and stored incessantly the energy that flowed away incessantly through all the arteries of the city. ... The great circular shapes of complaining wind-wheels blotted out the heavens ...
In that story, it is indeed the power company that is in power.

That said, it is a fact that wind turbines are being and will continue to be built, so like National Wind Watch I strongly support effective setbacks (at least 2 km, perhaps 5 km) from homes and noise regulations (that limit nighttime indoor noise to 30 dBA, as the WHO recommends, and limit ILFN and pulsating noise as well). And we oppose opening up otherwise protected land to the construction of the giant machines. Of course, such regulation would not contribute to, but instead would threaten, the “success” of wind energy. It would remain rare and unprofitable, as such an absurd source of energy for the modern world should be, used only in the most desperate of circumstances when nothing else is possible and the cost and harm and low benefit might be justifiable.

wind power, wind energy, wind turbines, wind farms, environment, environmentalism

November 21, 2013

How much does wind energy reduce carbon emissions?

Claims of wind energy reducing carbon emissions and water use are like my taking a walk and then claiming I prevented the emissions of driving instead. Except neither I nor anybody else might have made that drive, and I didn't check if anybody’s driving was actually prevented or displaced by my taking that walk.

Claims of wind energy reducing carbon emissions and water use are made only on the basis of how much electricity is generated by wind turbines and multiplying that by the average (if they are that rigorous) carbon intensity of the rest of the grid.

But that ignores several factors that likely reduce that equivalence:

  • Because wind is variable, it is more likely to displace no-carbon hydro and lower-carbon natural gas, not coal, because those generators can ramp up and down much more quickly than coal plants are able to.
  • In balancing the variability of wind, fossil fuel plants are forced to run less efficiently, i.e., burn more fuel per unit of energy generated.
  • Wind also takes advantage of the redundancy already built into the grid that keeps a substantial amount of capacity on spinning standby to be able to instantly switch to generation in case of a major failure of supply elsewhere — or a dip in wind generation. Therefore, at modest penetration levels (perhaps up to around 6%), wind probably has no effect on emissions at all, instead only switching already running backup plants between generation and standby more often. At greater penetration levels, connections to other grids (such as Denmark’s to Germany and the rest of Scandinavia) are used for that purpose.
That’s why wind’s benefits are always reported in terms of equivalences. Its advocates tireless avoid presenting actual data of less burning of fossil fuels, because, for the reasons given above, such data do not show much, if any, benefit at all.

wind power, wind energy, environment, environmentalism

November 16, 2013

Wind displaces …

Here are a couple of pictures of the generation mix on the electric grids from two very different locations. These times were not chosen for any particular reason except that your editor was just now looking at them and though he/she might write about them. First, 24 hours from Spain:


What is notable is that only 3 sources vary substantially: wind, solar, and hydro. And gas use goes up a bit for the midday and evening peaks. As wind rises early in the morning and does not decrease after the midday peak, it is clear that hydro is the source being adjusted to accommodate it. It is also clear that there is substantial hydro capacity that is drawn on for the evening peak (when there is no solar). One might therefore conclude that the large amount of wind power installed in Spain has served more to reduce the use of hydropower rather than fossil fuels.

Second, a week from the Pacific Northwest in the USA:


What is notable here is the effect on other sources of the steady rise of wind-powered generation over the past 3 days. It's harder to read than the Spanish graph, but the effect seems to be almost none.

Update, Dec. 4, 2013:



wind power, wind energy, environment, environmentalism