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A Rough Analysis: Valuing Gas Storage

Monica Giulietti, Luigi Grossi, and Michael Waterson

Year: 2012
Volume: Volume 33
Number: Number 4
DOI: 10.5547/01956574.33.4.6
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Abstract:
This paper studies the impact of a fire in 2006 which removed the possibility of access to the Rough gas storage facilities covering over 80% of total UK storage, at a time when major withdrawals from storage would have likely taken place. Implicitly, it shows the value of such gas storage facilities, in a country with relatively little storage, where we might therefore see a considerable impact. We find that the major effect on activity was through an increased sensitivity of supply to prices and an increased variance in this sensitivity, not through non-price rationing. Keywords: Gas storage, Rough fire, UK gas market, Event study analysis http://dx.doi.org/10.5547/01956574.33.4.6



Inequality in Energy Intensity in the EU-28: Evidence from a New Decomposition Method

Luigi Grossi and Mauro Mussini

Year: 2017
Volume: Volume 38
Number: Number 4
DOI: 10.5547/01956574.38.4.lgro
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Abstract:
This paper investigates inequality in energy intensity between EU-28 member countries over the 2007-2012 period. Inequality in energy intensity is measured by using the Zenga inequality index. The analysis is carried out by measuring inequality from the bottom of the energy intensity distribution to the top. This approach enables to identify the most unequal portions of the energy intensity distribution. To provide information on the causes of inequality at every point of the distribution, we show that inequality can be broken down into three components explaining the roles played by energy transformation, final energy intensity and their interaction in determining inequality in energy intensity. This decomposition reveals the impact of each component of inequality from the bottom of energy intensity distribution to the top. Results show that final energy intensity plays a major role in explaining inequality in the energy intensity distribution. The interaction component explains that EU-28 countries with low energy intensity are more efficient in energy transformation and less energy-intensive in end-use sectors than EU-28 countries with high energy intensity. The energy transformation component is higher when measuring inequality between the countries at the bottom of the distribution and those in the rest of the distribution, suggesting that disparities in energy transformation efficiency play an important role in determining inequality in energy intensity between the least energy-intensive countries and the other countries. The high inequality at the top of the distribution is due to the lower efficiency in energy transformation in the most energy-intensive countries, which reinforces the effect of disparity in final energy intensity between the countries at the top of the distribution and the other countries.



Analyzing the Potential Economic Value of Energy Storage

Monica Giulietti, Luigi Grossi, Elisa Trujillo Baute, and Michael Waterson

Year: 2018
Volume: Volume 39
Number: Special Issue 1
DOI: 10.5547/01956574.39.SI1.mgiu
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Abstract:
This paper examines the commercial opportunities for electrical energy storage, taking market prices as given and determining the extent to which a strategy of arbitrage across the day, buying at the lowest price times at night and selling at the highest price times during the early evening, and relying on price forecasts one day-ahead generates profits in the British context. The paper sets out the potential problems as the market moves to absorb increasing amounts of wind, then characterises the nature of prices, which reveals the importance of a strategy in which power is absorbed into store for a relatively few hours of the day and discharged over a relatively few hours. It argues that additional incentives may need to be put into place in order to render storage over relatively longer periods more attractive and to deliver broader social benefits which are unlikely to be generated and captured as a result of purely commercial considerations.





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