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As an increasing number of California households install solar panels, the current approach to retail electricity pricing makes it harder for the state’s utilities to recover their costs. Unless policymakers change how they price grid-supplied electricity, a regulatory crisis where a declining number of less affluent customers will be asked to pay for a growing share of the costs is likely to occur.

 

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Stanford Institute for Economic Policy Research (SIEPR)
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Frank Wolak
Frank Wolak

Meeting today’s most pressing energy challenges—controlling air pollution, reducing greenhouse gas emissions, integrating renewable energy, delivering modern energy services to populations that lack them—requires expanding and improving the functioning of electricity markets. Because electricity is not cheap to store, and supply must meet demand at every location and every moment, electricity markets are particularly susceptible to the exercise of market power and other issues.

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Pui Shiau
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Pilot program was designed to first ground students in the basics of empirical research, then provide an opportunity to apply that knowledge while conducting fieldwork in an international setting.

 

The Freeman Spogli Institute for International Studies (FSI) and Office of International Affairs (OIA) launched a pilot collaboration last year to provide a rigorous, immersive teaching and training program for students interested in international fieldwork.  The result was a program that included a quarter-long course in the spring of 2015 followed by three weeks in Mexico during the summer to design and conduct a field research study. OIA spoke with Frank Wolak, the Holbrook Working Professor of Commodity Price Studies in Economics and Senior Fellow at FSI, to learn more about the project, titled International Field Research Training: Energy Reform in Mexico.

What was the impetus for designing a program for students with a field research component?

While students at Stanford have many opportunities to pursue independent research projects, they rarely have the opportunity to receive first-hand training in conducting interviews, research design and field implementation. With that in mind, we set out to design a program that would carry the students through the basics of empirical research and then give them the opportunity to apply that knowledge under close faculty supervision. Taking students out of the classroom and giving them the opportunity to see textbook methods in action is invaluable.

Our hope is that this training equips the students with the academic and logistical skills they need to execute their own robust research, be that for an honors thesis, a capstone project or an advanced degree.

How did the prerequisite course prepare students for working in the field? 

The Stanford course taught the basics of the design, implementation and interpretation of social science field research. Building on a basic knowledge of statistical methods and economics, the course first introduced observational field research and compared it with experimental field research. Significant attention was devoted to explaining what can and cannot be learned through each type of field research.

Topics covered included sample size selection, power and size of statistical hypothesis tests, sample selection bias and methods for accounting for it. Examples of best practice field research studies were presented as well as examples of commonly committed experimental design and implementation errors. Practical aspects of fieldwork were also covered, including efficient and cost-effective data collection, data analysis, teamwork and common ethical considerations.

After completing the quarter-long course on statistical research methods, the students, under the guidance of the Program on Energy and Sustainable Development's research team, adapted an education-based research intervention for the Mexican electricity sector. The purpose was to see if providing individuals with information about how their energy bill was calculated and simple ways to reduce household electricity consumption would cause household energy bills to go down.

What was a typical day for the students gathering research?

Research was carried out in the city of Puebla, a city of 1.5 million people about 150 kilometers (93 miles) southeast of Mexico City. The Stanford students collaborated with students from the Universidad Popular Autónoma del Estado de Puebla (UPAEP). For the first few days, the students all met at an UPAEP classroom space to design and review the survey tool, making revisions and conducting practice interviews.

Once oriented in Puebla, the students set out daily in research teams to interview randomly selected households in middle-income neighborhoods in Puebla. The students branched out from a central meeting place in teams of three, pairing two Stanford students with one UPAEP student.

In the field, the students all wore nametags and UPAEP baseball caps to make themselves identifiable as surveyors to households. They worked in the field for eight to 10 hours a day, taking about an hour break for lunch. In the first few days, they were able to collect 15-20 surveys a day, but as they became more comfortable with their pitch and knocking on doors, they were able to increase their yield to a high of 44 surveys in one day. At the end of two weeks, they completed over 260 surveys in just 10 days of fieldwork.

The students were also active on social media documenting their daily activities. For more on the student perspective, their activities and impressions of the project, check out their blog on the FSI website. 

What are the benefits for getting in-country field research experience?

There are a variety of situation-specific problems that are hard for any researcher to know fully without being immersed in the field. For example, one of the students' recommendations to improve energy efficiency was to switch household light bulbs from incandescent to compact fluorescents (CFL). This is a valid recommendation in the United States where most people still use incandescent bulbs in their homes, but – surprisingly to the team – most of the people interviewed had already converted to all CFLs in their home.

I was amazed with the students; the level of intellectual curiosity and engagement was impressive with ongoing discussions into the evening at times. The students were not only getting an in-country immersive experience while conducting research, but they were also developing critical thinking skills along the way.

Research aside, the in-country experience gave the students a keen understanding of how local residents live. The methodology employed for gathering data allowed the students to connect with many types of families, ranging from senior citizens living alone to multi-generational families living under one roof. Through direct contact with the community, the students developed an understanding of the local culture and learned local customs. 

Conducting international research at Stanford can be challenging. Where did you turn to for advice on how to structure your activity?

At FSI, we have a great wealth of experiential knowledge on conducting field research all over the world. In addition to consulting with faculty and research managers at FSI, OIA had been enormously helpful in connecting us with resources across campus and facilitating some of the trickier logistics, such as processing stipend payments to our international collaborators and navigating the human subjects approval process. OIA was also able to discern that Puebla was a viable option as a research site.

How would you characterize the success of the pilot program? 

The pilot program exceeded our expectations in the best possible ways. Much of its success was due to the work of Elena Cryst ,'10, program manager for FSI's Global Student Fellows Program, who also accompanied us on our trip. She was an invaluable team leader and organizer and worked tirelessly to ensure that both the research and logistical aspects of the trip ran smoothly.

We will definitely be offering the field research course and research project again. We hope to go to another part of Latin America next, such as Chile or Colombia. We are also still active in Mexico, with three of the students that went on the trip working for us as research assistants this academic year, analyzing the data as it comes in and developing a self-administered online version of the survey instrument with which we hope to reach thousands of households in Puebla.

In addition, Elena will be using our experiences from the Mexico pilot to inform other FSI field research programs in China, Guatemala, India and potentially new sites for next year.

 

This article was originally published in The Stanford Report on October 27, 2015.

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On August 13th, 2015, Professor Wolak was interviewed along with Monica Padilla and Ted Ko by KALW, a public radio station in San Francisco. The particular topic of interest for the hour-long segment was CCAs (Community Choice Aggregation), which provide an alternative way for communities to receive electricity other than the commonplace utilities. Although the CCA bill came out in 2002, there are only three remaining CCAs today. 

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Stanford students, under the guidance of the Stanford Program on Energy and Sustainable Development and in partnership with the Freeman Spogli Institute and the Universidad Popular Autónoma del Estado de Puebla (UPAEP), are currently administering surveys throughout Puebla, Mexico. The surveys primarily consist of three stages: determining a household's energy consumption, educating the household on how their electricity bill is calculated, and suggesting at least one cost-saving strategy the household could adopt. The research project is a continuation of the work that the students began in Econ 121: Social Science Field Research Methods and Applications, taught by Ognen Stojanovski, Frank Wolak, and Mark Thurber. The trip to Mexico will last for four weeks. 

You can follow the experiences of the students at their blog

In addition, the students have been posting pictures from their trip on the FSI Instagram

Link to Econ 121

Link to the FSI Student Programs Facebook Page

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This paper summarizes the lessons learned from implementing a realistic, game-based simulation of California’s electricity market with a cap-and-trade market for greenhouse gas (GHG) emissions and fixed-price forward financial contracts for energy. Sophisticated market participants competed to maximize their returns under stressed (high carbon price) market conditions. Our simulation exhibited volatile carbon prices that could be influenced by strategic behavior of market participants. General uncertainty around carbon price as well as the deployment of strategies that were privately profitable but adversely affected overall market efficiency resulted in total costs of electricity supply that were significantly higher than would have been observed in perfectly competitive allowance and electricity markets. 

We observed several striking phenomena in our game. First, all teams in our game found themselves in a position to prefer higher carbon prices, even those holding high-emitting power plants. This occurred both because electricity price rose faster with carbon price than the average variable cost of producing output for most teams and because the initial allowance allocations functioned as “free money” with a face value that could be increased through the unilateral actions of market participants. Second, teams exercised unilateral market power on both selling and buying sides of the carbon allowance market, with the net effect being a carbon price far above that which would have been expected based on allowance supply and demand in a perfectly competitive market. Third, disagreement among teams over the appropriate price of carbon allowances combined with the exercise of unilateral market power in both electricity and allowance markets dramatically increased electricity prices and often resulted in the use of a more expensive set of generation units to produce the electricity demanded.  Numerous authors have pointed out that electricity markets are extremely susceptible to the exercise of market power, and emissions allowance markets can exacerbate this problem, as demonstrated in Kolstad and Wolak (2008). Fourth, there was very little liquidity in the secondary market for carbon allowances until right before the final emissions “true-up,” with a flurry of trading at the last minute, which resulted in inefficient market outcomes as several trades failed to be completed before the deadline.

These findings have several important policy implications. First, policy measures that increase the transparency and liquidity of the carbon allowance market would make both the allowance market and the electricity market work better. In our simulation, all market participants showed a strong unilateral desire to limit the amount of information publicly available about conditions in the carbon market, much to the detriment of market performance. Second, guardrails that constrain market outcomes, such as price floors and ceilings, can play a valuable role by limiting carbon price volatility.  Third, position and holding limits can reduce the ability and incentive of market participants to attempt strategies that, while privately profitable, have a negative impact on overall market efficiency.

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Mark C. Thurber
Mark C. Thurber
Frank Wolak
Frank Wolak
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We compare the cost of generating electricity with coal and wind in Chile’s Central Interconnected System (SIC). Our estimates include the cost of marginal damages caused by coal plant emissions.

On average, we estimate that the levelized cost of coal, including externalities, is $84/MWh. It is efficient to abate emissions of air pollutants (SOx, NOx and PM2.5) but not of CO2. Then the cost wrought by environmental externalities equals $23/MWh, or 27% of total cost. Depending on the price of coal, the levelized cost of coal may vary between $72 and $99/MWh.

The levelized cost of wind is $144/MWh with capacity factors of 24%. This cost includes the cost of backup capacity to maintain acceptable loss of load probability (LOLP), which equals $13/MWh or 9% of total cost. The levelized cost of wind varies between $107/MWh with capacity factors of 35% to $217/MWh with capacity factors of 15%.

We conclude that wind is competitive only when it achieves capacity factors around 35% and coal prices are very high. So far the average annual capacity factor achieved by existing wind farms in Chile has been less than 20%, which suggests why wind has developed only slowly.

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Program on Energy and Sustainable Development
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Alexander Galetovic
Cristián M. Muñoz
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In recent years, natural gas prices in the United States have gone from historic highs of over $12 per mmBtu in the summer of 2008, to under $2.50/mmBtu in 2012. While demand side factors – such as the crisis in global financial markets – were partially to blame, many would argue that the real story is on the supply side, where increased production of shale gas – a form of unconventional natural gas trapped in leafy shale rock – drove gas prices down across the continent. The impact of low gas prices was felt in the form of cheap electricity, heating, and feedstocks to consumers and industry, which in turn bolstered the economic recovery. As an added bonus, cheap gas displaced dirty coal in power generation, reducing carbon emissions and pollution.

It is no wonder then, that when a recent U.S. Energy Information Administration publication on world wide reserves of shale gas crowned China as the holder of the world’s largest shale gas reserves, many inside and outside the Middle Kingdom were intrigued and enthralled by the possibilities of what shale gas could mean for China – in terms of climate, pollution, quality of life – and what it could mean for the broader international gas trade.

In this upcoming EWG talk, we will highlight some of the current activities and future plans for unconventional gas development in China. We will focus on the political, institutional, and commercial forces at play, and discuss some of the potential upsides and pitfalls that China will encounter on the road to realizing its unconventional gas potential.

Stanford University

Joe Chang Speaker
Jonathan Strahl Speaker
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