Archive for February, 2011

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Why do Americans drive more than Europeans?

February 15, 2011

Michael Giberson

This result indicates that the quality of urban mobility infrastructure development can hard-wire either energy profligacy or energy efficiency into the system for decades. It also highlights the pernicious impact on long-term demand of low energy prices such as those driven by subsidies, particularly in emerging markets.

From Shell’s Signals & Signposts: Shell Energy Scenarios to 2050, via FT EnergySource blog.

I think they are saying that cities that were established and grew during periods when transportation energy was expensive tend to be structurally adapted to economize on energy use; other cities, built around cheap transportation energy, tend to be structurally adapted to economize on other things.

If conserving energy is the goal above all other goals, then old European cities were lucky to grow up during times of high transportation energy costs and American cities less lucky. If other goals are deemed possibly of interest, then it becomes less clear which adaption should be preferred. Suddenly the use of the word “pernicious” is suspect unless limited exclusively to subsidized transportation energy prices. (I’d drop the “such as those” from the second sentence quoted to make the point clear.)

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An experimental test of automated market power mitigation finds the procedures work

February 15, 2011

Michael Giberson

The new International Journal of Industrial Organization is a special issue devoted to experimental analysis. Among the articles is research into automated market power mitigation procedures similar to the rules employed in the New York Independent System Operator. In brief, the authors find that automated conduct- and impact-based screening of offers succeeded in mitigating the effects of attempts to exercise market power on power prices, at least when suppliers don’t have market power during periods that transmission lines are not congested. (Reference offer prices are determined by offers made during non-congested periods, so if generators have significant market power in these periods the reference offer prices can be manipulated upwards.)

The article, “An experimental test of automatic mitigation of wholesale electricity prices,” was authored by Daniel Shawhan, Kent Messer, William Schulze, and Richard E. Schuler.

ABSTRACT: In several major deregulated electricity generation markets, the market operator uses an “automatic mitigation procedure” (AMP) to attempt to suppress the exercise of market power. A leading type of AMP compares the offer price from each generation unit with a recent historical average of accepted offer prices from that same unit during periods when there was no transmission-system congestion to impede competition. If one or more units’ offer prices exceed the recent historical average by more than a specified margin, and if these offer prices raise the market-clearing price by more than a specified margin, the market operator replaces the offending offer prices with lower ones. In an experiment, we test an AMP of this type. We find that it keeps market prices close to marginal cost if generation owners have low market power in uncongested periods. However, with high market power in uncongested periods, a condition that may apply in many parts of the world, the generation owners are able to gradually raise the market price well above short-run marginal cost in spite of the AMP. We also test the effect of the AMP on the frequency with which high-variable-cost units are used, inefficiently, in place of low-variable-cost units.

Interested readers should also note related research by Lynne Kiesling and Bart Wilson, “An experimental analysis of the effects of automated mitigation procedures on investment and prices in wholesale electricity markets,” Journal of Regulatory Economics, 2007.

(HT to Al Roth and his Market Design blog.)

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Nate Silver’s Valentine to Huffington Post bloggers…

February 14, 2011

Michael Giberson

Nate Silver runs some numbers on public Huffington Post information to get an idea on how much the posts of unpaid bloggers on the site are worth to the company in gross advertising revenue: “Do the multiplication, and you find … the median blog post, with several hundred views, was worth only $3 or $4.”

RELATED: New York Times, “At Media Companies, a Nation of Serfs.”

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Can we count on cheap natural gas for decades to come?

February 14, 2011

Michael Giberson

The new U.S. gas triumphalists say the gas resource supply picture has changed, shale gas has saved us from importing lots of expensive LNG, we’ve got tons and tons of gas now and for years to come, and public policy ideas based on the idea of diminishing supplies of ever more costly gas need to be replaced.

Not so fast, a few analysts are saying. A few recent examples:

Both suggest, among other things, that gas may be cheap now but it won’t be cheap later, so don’t let your public policy (or your private long term investments) get hooked on cheap gas.

The Our Finite World piece is the less-sound of the two. It seems to add up to a claim that gas is so cheap that it doesn’t pay to invest in more production capacity, and if no one invests in more production capacity supplies will run down, and then gas will not be cheap anymore. So watch out! There are many informative charts in the post.

The Financial Times column essential comes down to a view that shale gas resources won’t yield as much gas as proponents believe, and ultimately the U.S. is going to find itself back on the tail end of a very expensive LNG supply chain. The story ends on an ominous note, suggesting that if we don’t hurry to line up LNG supply contracts now at twice the current price of gas in the U.S., then China might grab those supplies first.

I guess I’m still more in the gas triumphalist camp. My evidence is rather weak, admittedly: a combination of observing current market conditions (have you compared the price of gas to the price of oil lately?), reading about gas reserves and technology, some general understanding of economics, and a tendency toward “cornucopian” rather than “Malthusian” sentiments on long-run resource issues. (I can be convinced otherwise, but it will probably take a few years more of data from shale gas wells to make much a dent in my current beliefs.)

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Good news and bad news from price-spike induced failure of retail power company in Texas

February 12, 2011

Michael Giberson

We know that several Texas generators were unprepared for the possibility of severe cold on February 2, and now comes word that at least one retail electric provider was similarly unprepared for the possibility of price increases. ERCOT real-time power prices jumped to about $3000/MWh for most of the emergency period that morning. Abacus Resources Energy has defaulted on its financial obligations to ERCOT, reportedly unable to cover costs due to the spot power price spike. More, from the Fort Worth Star-Telegram:

[Abacus Resources] General Manager Mark Angell said last week’s unprecedented spike in wholesale power costs, when numerous generating stations were out of action because of the weather, overwhelmed the company’s financial resources.

Buying power for its 7,700 customers, most of them residential, typically cost Abacus from $11,000 “on a good day” to $25,000 “on a bad day,” Angell said. “You take that to $300,000 a day, and it doesn’t compute.”

Abacus needed to come up with $750,000 to pay its energy bills and also meet cash collateral requirements required by ERCOT. That wiped out the company’s reserves.

“It was a once-in-20-years occurrence, and we got caught,” Angell said.

A couple of observations:

  • Any retailer that was severely bit by the price spike was a retailer that hadn’t secured enough power to meet its customers’ demand for that cold morning. Forward contract prices for the time period were likely in the $50/MWh range. In short: The cold was forecast, retailers have means to hedge themselves against financial exposure, retailers who were short that morning will pay.
  • And, by the way, generators who were contracted to deliver power and failed to deliver will also be covering their shortfall at the spot market price. The only generators that will be paid the seemingly exhorbitant $3000/MWh are those who had capacity not already under contract and were capable of delivering that uncommitted capacity to market.
  • Profit and loss is a great motivator, but only especially motivating when companies can actually go out of business.
  • Unlike the case in 2008, when a few companies went out of business and simply dumped their customers into the default “Provider of Last Resort” service, Abacus has arranged for its customers to transition to one of two other retailers that serve the same area. I don’t think that this transitioning is required of Abacus, but it is an improvement over last time.  It suggests that the retail provider industry can learn from past mistakes.

Who pays?

News items suggest that various consumer advocates are worried that, ultimately, consumers will have to pay for whatever losses retailers suffered last week through higher prices. One of the beautiful things about the relatively open and competitive retailer marketplace in the ERCOT region is that this isn’t true in any general sense. Prices on retail supply contracts should be forward looking, based on the expected cost of the supplier fulfilling that contract over the contract period. Since any future contract period won’t include February 2, 2011, future customers can’t be made to take that hit.

A local Starbucks had its roof cave in after heavy rains revealed a structural flaw. When the store re-opens, will they stick consumers with a surcharge to cover the cost of rebuilding? No, coffee consumers have alternatives, and because consumers have alternatives the coffee company will take the hit. Same for retail power consumers in ERCOT.

A few ways that last week’s power emergency can lead to higher prices for consumers: (1) if all companies become a more cautious, and contract-up extra power in advance or otherwise add to their hedges against rare power emergencies, then rates will creep up to cover the higher cost of operations.  But this only works if all companies become more cautious, including any new company that may want to join the market. Otherwise some company will have lower rates and take customers from the newly cautious; (2) if changes to Texas PUC or ERCOT regulations on retailers force them into excessive financial commitments, raising all retailers’ costs and so all retailers’ rates; or (3) if ERCOT decides to carry (or is forced into carrying by legislative or regulatory action) substantially higher amounts of reserves or to make other changes to operations to cover the possibility of rare power emergencies.

In case 1 the competitive market will yield higher prices to reflect the adjusted risk perceptions of participants in the market. In case 2 it is the residual monopoly transmission grid that will lock consumers into higher prices. By the way, when ERCOT’s retail market finally grows to its smart grid potential, events like the February 2nd power emergency will look a lot different. They might even look like non-events. Probably the subject of a future post.

In sum, a company has been driven from the market. Bad news for the company, the management, employees, and especially the owner. Not especially bad news for consumers in the short run, and ultimately good news.

Profit and loss can be a powerful motivator.

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Roundup of news and commentary on the Texas rolling blackouts

February 11, 2011

Michael Giberson

A collection of news and commentary on the February 2 rolling blackouts on the ERCOT grid in Texas.

Not a complete list of stories by any means, but plenty food for thought. Some of the above will likely be discussed further on this site.

Also, the ERCOT grid has set another winter record, reaching 57,282 MW on Thursday, February 10. ERCOT managed without rolling blackouts this time, offering support for my conjecture that ERCOT and the industry would not be caught unprepared for such a surge so soon after last week’s emergency.

Meanwhile, outside ERCOT, El Paso is still suffering repercussions from problems caused in part by the blackouts imposed by El Paso Electric Company last week, after two of the company’s generators failed. Because El Paso Electric remains a traditionally regulated public utility, the failures there stand as a challenge to anyone trying to pin the blame for ERCOT’s less-regulated, more-competitive market structure. Because El Paso Electric is interconnected to other utilities throughout the western United States, the failures there also stand as a challenge to anyone trying to pin the blame on ERCOT’s policy of electrical isolation from surrounding power systems.*

(*This second “anyone” implicates me. See my “Cold snap brings rolling power outages to Texas; is ERCOT policy of isolation at fault?“)

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GMU economists conflict on Hayek and the discovery of efficient laws, I think

February 10, 2011

Michael Giberson

Two recent papers by George Mason University economists* appear to conflict on the question of whether competition in the legal arena should be expected to yield more efficient laws. I say “appear to conflict” because I have only just glanced through both papers and they both appear rich, dense, and worthy of careful study. Both invoke Hayek, one to warn that a Hayek analogy between spontaneous emergence of law and spontaneous ordering in markets may be misleading and the other to claim that Hayek didn’t take that analogy far enough.

In one corner, the heavyweight James Buchanan, wielding his paper “The limits of market efficiency“:

ABSTRACT: The framework rules within which either market or political activity takes place must be classified in the non-partitionability set under the Samuelson taxonomy. Therefore there is nothing comparable to the profit-loss dynamic of the market that will insure any continuing thrust toward more desirable rules. ‘Public choice’ has at least partially succeeded in getting economists to remove the romantic blinders toward politics and politicians as providers of non-partitionable goods. It is equally necessary to be hard-nosed in evaluating markets as providers of non-partitionable rules

In the other corner, tag-team contenders Edward Stringham and Todd Zywicki with “Hayekian anarchism“:

ABSTRACT: Should law be provided centrally by the state or by some other means? Even relatively staunch advocates of competition such as Friedrich Hayek believe that the state must provide law centrally. This article asks whether Hayek’s theories about competition and the use of knowledge in society should lead one to support centrally provided law enforcement or competition in law. In writing about economics, Hayek famously described the competitive process of the market as a “discovery process.”  In writing about law, Hayek coincidentally referred to the role of the judge under the common law as “discovering” the law in the expectations and conventions of people in a given society.  We argue that this consistent usage was more than a mere semantic coincidence—that the two concepts of discovery are remarkably similar in Hayek’s thought and that his idea of economic discovery influenced his later ideas about legal discovery.  Moreover, once this conceptual similarity is recognized, certain conclusions logically follow: namely, that just as economic discovery requires the competitive process of the market to provide information and feedback to correct errors, competition in the provision of legal services is essential to the judicial discovery in law.  In fact, the English common law, from which Hayek drew his model of legal discovery, was itself a model of polycentric and competing sources of law throughout much of its history.  We conclude that for the same reasons that made Hayek a champion of market competition over central planning of the economy, he should have also supported competition in legal services over monopolistic provision by the state—in short, Hayek should have been an anarchist.

*Buchanan is GMU distinguished professor emeritus of economics; Edward Stringham is a PhD graduate in economics from GMU, now teaching at Fayettville State University; technically speaking Todd Zywicki is a legal scholar at GMU’s law school, but he knows enough economics to earn the honorific.

(HTs to Marginal Revolution on JB, Volokh Conspiracy on ES/TZ.)

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Haidt on political bias among social psychologists

February 9, 2011

Michael Giberson

Several days ago we discussed Jonathan Haidt’s research on libertarianism (see post). In his New York Times column, John Tierney discusses Haidt’s work on political bias among social psychologists:

Some of the world’s pre-eminent experts on bias discovered an unexpected form of it at their annual meeting. …

It was identified by Jonathan Haidt, a social psychologist at the University of Virginia who studies the intuitive foundations of morality and ideology. He polled his audience at the San Antonio Convention Center, starting by asking how many considered themselves politically liberal. A sea of hands appeared, and Dr. Haidt estimated that liberals made up 80 percent of the 1,000 psychologists in the ballroom. When he asked for centrists and libertarians, he spotted fewer than three dozen hands. And then, when he asked for conservatives, he counted a grand total of three.

“This is a statistically impossible lack of diversity,” Dr. Haidt concluded, noting polls showing that 40 percent of Americans are conservative and 20 percent are liberal. In his speech and in an interview, Dr. Haidt argued that social psychologists are a “tribal-moral community” united by “sacred values” that hinder research and damage their credibility — and blind them to the hostile climate they’ve created for non-liberals.

“Anywhere in the world that social psychologists see women or minorities underrepresented by a factor of two or three, our minds jump to discrimination as the explanation,” said Dr. Haidt, who called himself a longtime liberal turned centrist. “But when we find out that conservatives are underrepresented among us by a factor of more than 100, suddenly everyone finds it quite easy to generate alternate explanations.”

(Links in source.)

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What about electric bikes? and regular bikes? and can I get a pony?

February 9, 2011

Michael Giberson

President Obama’s budget request will call on Congress to pass legislation offering consumers a rebate of as much as $7,500 for purchasing electric vehicles.

The rebate plan is part of a three-part proposal outlined by the Department of Energy Tuesday that will be included in Obama’s budget request, slated to be released Monday. The proposal is designed to reach Obama’s goal of putting 1 million electric vehicles on the road by 2015.

The electric vehicles rebate proposal is modeled after the successful “cash-for-clunkers” program, which gave consumers rebates for exchanging older vehicles for more fuel-efficient ones.

From The Hill‘s E2 Wire blog.

Four reactions:

1. Which “cash-for-clunkers” program was the successful one? They can’t be talking about this one, can they?

2. Does “electric vehicles” include electric motorcycles and electric bikes, too? How about a golf cart so I can tool around the neighborhood like some of my neighbors do?  And if electric vehicles can get a subsidy, why not non-electric bike purchasers?

3. Is this a plan to do something about local air pollution problems, so the rebates targeted to areas with local air pollution problems? Or are we going to squander taxpayer money wherever consumers want to put their electric vehicles, whether there are any local air pollution problems or not?

4. Also, I want a pony.

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More cold for Texas and a test of my conjecture on preparedness

February 9, 2011

Michael Giberson

Last week the sharply colder temperatures wreaked havoc on many power generators in Texas, leading to emergency conditions and rolling blackouts on the ERCOT power system. In my preliminary reaction to the developments, I said:

No doubt coal and gas-fueled generators across the state are reexamining their readiness for extreme coal weather. I suspect we could survive another severe storm as early as next week, should one come about.

Looks like we’re going to get a test of my conjecture. The forecast for Wednesday: sharply colder weather once again.

Tom Fowler at the Houston Chronicle has reported that ERCOT is taking extraordinary steps, including securing an extra 3,000 MW of reserve capacity to be available from Wednesday through Saturday (over the usual 2,300 MW minimum).

It isn’t the most sophisticated approach to dealing with the problem, but should suffice.

Stay tuned.

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