Natalia Caldés

Understanding the absence of renewable electricity imports to the European Union

Purpose This paper aims to analyse reasons for the absence of renewable electricity (RE) imports to the European Union, for which the authors develop a multi-level heuristic. Design/methodology/approach The heuristic covers three sequential acceptance levels: political attractiveness (macro-level), the “business case” (micro-level) and civil society perspectives (public discourse level). Findings Numerous factors on all three levels determine the success/demise of renewables trade. So far, trade has failed on the macro-level, because European policymakers perceive that targets can be achieved domestically with significant co-benefits and because exporter countries have rapidly increasing electricity demand, limiting the realisable exports. As policymakers deemed it unattractive, they have not implemented policy-supported business cases. Public opposition against trade has not been an issue as no concrete plans or projects have been proposed. Research limitations/implications The authors show that the factors determining whether a RE programme is successful are plentiful and extend far beyond potential cost savings. This suggests that future research and the energy policy debate should better account for how cost savings are weighed against other policy aims and explicitly include the perspectives of investors and the public. Originality/value This paper adds the first holistic analysis of success/failure factors for RE trade to Europe. The three-level, sequential framework is new to energy policy analysis.

Rescuing the concept of solar electricity transfer from North Africa to Europe

Purpose The purpose of this paper is to shed light to the concept of solar electricity transfer from North Africa to Europe in the frame of Article 9 of the European Renewable Energy Sources (EU-RES) Directive 28/2009/EC, to explain why efforts have not been successful up to now and to provide recommendations on how to proceed. Design/methodology/approach The authors have compared the “Supergrid” concept that was pursued by some institutions in the past years with the original “TRANS-CSP” concept developed by the German Aerospace Centre in 2006. From this analysis, the authors could identify not only major barriers but also possible ways towards successful implementation. Findings The authors found that in contrast to the Supergrid approach, the original concept of exporting dispatchable solar power from concentrating solar thermal power stations with thermal energy storage (CSP-TES) via point-to-point high voltage direct current (HVDC) transmission directly to European centres of demand could be a resilient business case for Europe–North Africa cooperation, as it provides added value in both regions. Research limitations/implications The analysis has been made in the frame of the BETTER project commissioned by the Executive Agency for Competitiveness & Innovation in the frame of the program Intelligent Energy Europe. Practical implications One of the major implications found is that due to the time lost in the past years by following a distracted concept, the option of flexible solar power imports from North Africa to Europe is not any more feasible to become part of the 2020 supply scheme. Social implications To make them a viable option for post-2020 renewable energy systems for electricity development in Europe, a key recommendation of the project is to elaborate a detailed feasibility study about concrete CSP-HVDC links urgently. Originality/value The analysis presented here is the first to give concrete recommendations for the implementation of such infrastructure.

Using the Framework for Integrated Sustainability Assessment (FISA) to expand the Multiregional Input–Output analysis to account for the three pillars of sustainability

Decision makers interested in promoting sustainable development must simultaneously consider the environmental, economic and social implications of any action. This article proposes the Framework for Integrated Sustainability Assessment (FISA), a methodological framework for conducting a sustainability impact assessment of any investment project. Based on a Multiregional Input–Output (MRIO) framework, FISA links the extended MRIO results with social risk data from the Social Hotspots Database (SHDB) in order to integrate the social with the environmental and economic pillars. Resulting impacts are simultaneously considered and reported by means of FISA charts, making it possible to assess the different impacts within the three sustainability pillars across countries involved in the whole supply chain of investment projects. This methodological framework can be applied not only to compare the sustainability impacts of two alternative projects, but also to derive specific recommendations aimed at minimizing the harmful social, environmental and economic effects along the whole project supply chain.

Comparing the sustainability impacts of solar thermal and natural gas combined cycle for electricity production in Mexico: Accounting for decision makers’ priorities

The aim of this paper is to conduct a comprehensive sustainability assessment of the electricity generation with two alternative electricity generation technologies by estimating its economic, environmental and social impacts through the “Framework for Integrated Sustainability Assessment” (FISA). Based on a Multiregional Input Output (MRIO) model linked to a social risk database (Social Hotspot Database), the framework accounts for up to fifteen impacts across the three sustainability pillars along the supply chain of the electricity production from Solar Thermal Electricity (STE) and Natural Gas Combined Cycle (NGCC) technologies in Mexico. Except for value creation, results show larger negative impacts for NGCC, particularly in the environmental pillar. Next, these impacts are transformed into “Aggregated Sustainability Endpoints” (ASE points) as a way to support the decision making in selecting the best sustainable project. ASE points obtained are later compared to the resulting points weighted by the...

Ex Post and Prospective Analyses of Renewable Policies in Spain

In this work, socioeconomic and environmental impacts associated to energy technologies in the current and future Spanish Energy System have been estimated. This information has provided the base from which to conduct two kinds of analyses. First, an Ex post analysis of renewable policies in Spain, where the net impact on social welfare associated to the progressive introduction of those energies in the energy system has been assessed using a partial cost-benefit analysis. Then, a prospective analysis of the Spanish energy system where the optimum energy mix, which leads to the largest social welfare under different energy scenarios, taking into account a medium-long term time horizon (2035), has been estimated using the national energy optimization model TIMES-Spain. The results of the Ex post analysis of the period 2005–2012 show an increase on social welfare due to the introduction of renewable energies. Nevertheless, when assessing the total expenditure of renewables support policies, the results show this support exceeds the economic value of the socioeconomic and environmental externalities calculated in this work. The prospective analysis results for the period 2010–2035 definitely recommend a support for renewable electricity generation technologies and the redesigning of renewables support policies to better reflect their external benefits with respect to the fossil alternatives.