Open Access
200 years diversifying the energy mix? Diversification paths of the energy baskets of European early comers vs. latecomers
(Universidad Autónoma de Madrid, 2017) Rubio Varas, María del Mar; Muñoz Delgado, Beatriz; Economía; Ekonomia
The changes in the composition of the energy basket in the long run lead to energy transitions. Primary energy substitution models allow addressing these phenomena. However, the diversification paths of the energy mix of different countries in a long term compared perspective have not been studied yet. This paper proposes an indicator, based on the Herfindahl‐Hirschman Index, the Energy Mix Concentration Index (EMCI), to quantify the degree of diversification of the primary energy basket of eight European countries over the last two centuries. The results reveal that early comers, which are large energy consumers, required a huge concentration of their energy basket in the 19th century; however, the observed countries had converged to similar levels of diversification of their energy mixes from the second half of the 20th century, and more crucially after the oil crises. For some countries, today’s degree of diversification is the largest in their energy histories, but it is not the case for all of them. Our results suggest that small energy consuming countries would be able to achieve higher diversification, and therefore to do a faster transition to a low carbón economy, than large energy consumers.
Open Access
Energy as an indicator of modernization in Latin America, 1890-1925
(Wiley, 2010) Rubio Varas, María del Mar; Yáñez, César; Folchi, Mauricio; Carreras, Albert; Economía; Ekonomia
In the absence of comparable macroeconomic indicators for most of the Latin American economies before the 1930s, the apparent consumption of energy is used in this paper as a proxy of the degree of modernization of Latin America and the Caribbean. This paper presents an estimate of the apparent consumption per head of modern energies (coal, petroleum, and hydroelectricity) for 30 countries of the region, 1890 to 1925. As a result, it provides the basis for a quantitative comparative analysis of modernization performance beyond the few countries for which historical national accounts are available in Latin America.
Open Access
Learning by doing: the first Spanish nuclear power plant
(Cambridge University Press, 2018) Torre Campo, Joseba de la; Rubio Varas, María del Mar; Economía; Ekonomia
In the nuclear sector, turnkey projects can be considered an investment in obtaining information through “learning by doing” to capture rents from the next generation of reactors. As the first U.S. turnkey export project, the first Spanish nuclear power plant served that purpose and paved the way to the subsequent growth of the nuclear sector, for both Spanish and U.S. firms. Making use of archival material, we analyse the networks created by the government, experts, and business leaders, which sought to obtain, accumulate, and learn from the scarce and conflicting information about atomic technology that was available at the time. We also discern how firms on both sides of the Atlantic acquired and perfected the specific capabilities required to build a commercial nuclear reactor.
Open Access
Agua dulce para refrigeración: una visión a largo plazo de la huella hídrica de las centrales nucleares en España
(2016) Sesma Martín, Diego; Rubio Varas, María del Mar; Ekonomia; Institute for Advanced Research in Business and Economics - INARBE; Economía
Objectives: our research pioneers a first approximation to the water footprint of the Spanish nuclear power plants operating with freshwater from 1969 to the present. Our aim is to calculate the consumptive use of water (i.e. the amount of water evaporated, transpired, or incorporated in energy production) for Spanish nuclear power plants, and the amounts of water withdrawals required for running nuclear power plants. To sum up, what is the water impact of our nuclear power plants? Will water limit our energy future? Should water be considered when planning the electricity mix in the future? These are some of the questions to solve.
Open Access
Freshwater for cooling needs: a long-run approach to the nuclear water footprint in Spain
(Elsevier, 2017) Sesma Martín, Diego; Rubio Varas, María del Mar; Ekonomia; Institute for Advanced Research in Business and Economics - INARBE; Economía
From the invention of the steam engine to the present, water has represented a significant input to the energy system, although this has been mostly ignored in the literature. In Spain, the most arid country in Europe, studies about water footprint typically just consider domestic, agricultural and industrial water uses, but water requirements for the electricity sector are omitted despite our dependence on thermal power. It has been demonstrated that for each available cooling technology, nuclear needs and consumption of water tend to be larger per MWh generated. We calculate a first approximation to the Spanish nuclear water footprint from 1969 to 2015. Our results show that while water consumed by Spanish nuclear power plants are around 3 m3 per capita/year, water withdrawals per capita/year are around 70 m3. Moreover, our analysis allows extracting conclusions focusing on a River Basins approach. What is the water impact of our nuclear power plants? Will water limit our energy future? These are some of the issues at stake.
Open Access
The Energy Mix Concentration Index (EMCI): methodological considerations for implementation
(Elsevier B.V., 2019) Rubio Varas, María del Mar; Muñoz Delgado, Beatriz; Institute for Advanced Research in Business and Economics - INARBE
The Energy Mix Concentration Index (EMCI)is a quantitative indicator of concentration of the energy mix based upon the Herfindahl-Hirschman Index. We use the EMCI to compare the evolution of the diversification (versus concentration)of energy mixes in the long-term in order to reveal the transformations of the energy structures which determine energy transitions. In this methodological paper we make explicit how to aggregate the energy sources in order to calculate the EMCI, including questions of detail such us the level of aggregation and the transformation of primary electricity to add it up to total consumption. We present alternative figures that illustrate some additional aspects of the relation of the EMCI to total consumption, consumption per capita and energy annual growth. We also show the sensitivity of the indicator to alternative specifications (with and without pre-modern energy sources)and alternative data sets, proving its robustness. Indicate how to aggregate energy carriers in the calculation of a quantitative index of concentration of the energy mix. Compare alternative specifications (with or without pre-modern energy carriers). EMCI focus on the major energy sources in the energy systems.
Open Access
The weak data on the water–energy nexus in Spain
(IWA Publishing, 2019) Sesma Martín, Diego; Rubio Varas, María del Mar; Ekonomia; Institute for Advanced Research in Business and Economics - INARBE; Economía
This paper focuses on the fact that the water–energy nexus remains an irrelevant issue on the energy policy agenda and on the priorities of the energy leaders in Spain. This is a striking fact given that this takes place in the most arid country in Europe, where almost two-thirds of electricity generation would have to be halted in the absence of an adequate water supply. We contend that part of the explanation may lie in the lack of official statistics and inconsistent sources of information on the water–energy nexus in Spain. To illustrate this point, we provide examples of the uneven data available for one of the most intensive freshwater users in the thermoelectric sector in Spain: nuclear power plants. Our research demonstrates the need for improved indicators as policy instruments in the water–energy nexus in Spain since it is impossible to improve what cannot be measured.
Open Access
El Estado y el desarrollo de la energía nuclear en España, c. 1950-1985
(Asociación Española de Historia Económica (AEHE), 2014) Torre Campo, Joseba de la; Rubio Varas, María del Mar; Economía; Ekonomia
Tres décadas después de la decisión gubernamental de paralizar y replantear el programa atómico español que se había diseñado en los años del desarrollismo, la controversia permanece abierta. Pese a su relevancia, la historiografía económica de la energía nuclear está tan sólo en sus inicios. Este trabajo analiza el papel que el Estado jugó para conseguir que uno de los países más pobres de Europa occidental entrara en el exclusivo club de países productores de esa energía. Proponemos una nueva periodización del avance de la energía nuclear en España basada en la evolución político‐económica del sector que va más allá de los estadios tecnológicos que se describen en la literatura.
Open Access
Machines and energy. Energy capital ratios in Europe and Latin America 1875 - 1970'
(Taylor & Francis, 2018) Ducoing Ruiz, Cristián; Gales, Ben; Hölsgens, Rick; Rubio Varas, María del Mar; Ekonomia; Institute for Advanced Research in Business and Economics - INARBE; Economía
The relationship between energy and capital is one of the most important aspects of modern economic growth. Machines need energy to produce all the goods we enjoy; energy would be far less useful for humankind in absence of machines. However, the great majority of the economic models do not take into account the elasticities of substitution (or complementaries) between these two main variables. Actually, energy is absent in many growth models and discussions on diverging economic development paths. We approach this relevant issue from a new perspective: energy and capital relations during 100 years. We use the latest estimations of capital stock (machinery and equipment) and energy consumption for Latin America and compare them with those of Western Europe. The energy–capital ratio (how much energy is used per unit of capital) could be a predictor of economic growth, thus providing stylised facts about the timing and causes of the different modernisation patterns of these regions and showing us some answers on the long-run relationship between energy consumption and capital accumulation.
Open Access
Long-term diversification paths and energy transitions in Europe
(Elsevier B.V., 2019) Rubio Varas, María del Mar; Muñoz Delgado, Beatriz; Institute for Advanced Research in Business and Economics - INARBE
The authors propose a synthetic indicator that allows one to compare and contrast the evolution of the composition of the primary energy baskets of eight European countries over the last two centuries, and quantitatively analyze the degree of concentration (versus diversity) of their energy mixes throughout the period. The rest of the paper is organized as follows: section 2 explains the data sources and the methodology used based on concentration measures. The subsequent section focuses on the Energy Mix Concentration Index analysis and the results obtained. The article ends with a few concluding remarks.