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The role of energy storage technologies in the context of the Swiss energy transition

English title The role of energy storage technologies in the context of the Swiss energy transition
Applicant Patel Martin K.
Number 172703
Funding scheme Project funding (Div. I-III)
Research institution Institut des Sciences de l'Environnement Université de Genève
Institution of higher education University of Geneva - GE
Main discipline Other disciplines of Engineering Sciences
Start/End 01.11.2017 - 31.10.2021
Approved amount 580'000.00
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All Disciplines (2)

Discipline
Other disciplines of Engineering Sciences
Economics

Keywords (6)

energy storage; renewable energy; Swiss energy transition; energy efficiency; electricity market; modelling and optimization

Lay Summary (French)

Lead
Ce projet explore le rôle de différentes technologies de stockage dans le contexte de la transition énergétique. En combinant une démarche d’allocation optimale des ressources avec une modélisation des marchés électriques, cette recherche permettra une meilleure compréhension de l’intégration du stockage énergétique dans les processus de planification énergétique à long terme et contribuera au développement d’une stratégie pour le déploiement de ces technologies en Suisse.
Lay summary

L’objectif de ce projet est de conduire une analyse holistique du rôle potentiel de différentes technologies de stockage énergétique concurrentes et/ou complémentaires dans l’accroissement de la part d’énergie renouvelable dans le mix énergétique et dans une utilisation plus efficace de l’énergie. Des informations détaillées et robustes seront collectées pour décrire l’état de l’art et le potentiel futur de ces technologies en termes de performance et de coût, et serviront de base à une série d’interviews avec des experts. Deux modèles distincts seront développés et une analyse comparative sera menée pour différents scénarios. Des conclusions seront élaborées quant à la faisabilité et la pertinence du déploiement de ces technologies à diverses échelles.

Le rôle du stockage énergétique fait débat de par l’absence de consensus quant au potentiel technique et économique et aux mérites respectifs des différentes technologies. Ceci est largement dû à la grande diversité d’applications possibles, à la possibilité de délivrer différents services, à l’incertitude relative aux coûts des technologies et au développement du marché électrique qui rendent l’évaluation économique difficile. Ce travail contribuera à une meilleure compréhension du potentiel d’intégration du stockage énergétique dans la transition énergétique Suisse à l’horizon 2050.


 
Direct link to Lay Summary Last update: 30.05.2017

Lay Summary (English)

Lead
The project is studying the role of a variety of energy storage technologies in the context of the Swiss energy transition. By using both a social planner approach and an electricity market approach this research will contribute to a better understanding of how to integrate energy storage in long-term energy planning processes and help inform a comprehensive energy storage strategy for Switzerland.
Lay summary

The objective of the project is to perform a holistic investigation of the role of competing and/or complementary electric, thermal and chemical energy storage technologies in achieving greater penetration of renewable energy and more efficient use of energy. Detailed and robust information and data on the current status and the prospects of technical and cost performance will be collected and will serve as a basis for a series of interviews with experts. Two distinct but complementary models will be developed and a comparative analysis across various scenarios will be performed. Conclusions will be drawn with regard to the feasibility and value proposition of the deployment of energy storage technologies at various scales.

The role of energy storage is subject to an intense debate reflecting a lack of consensus about the techno-economic potential and respective merits of the various energy storage technologies. This is largely due to the wide spectrum of possible applications, the potential to deliver multiple services (revenue stacking), uncertain storage technology costs and unclear electricity market developments which make economic assessments difficult. This work will contribute to a better understanding of how to integrate energy storage in long-term energy planning processes such as the Swiss energy transition to 2050.

Direct link to Lay Summary Last update: 30.05.2017

Responsible applicant and co-applicants

Employees

Associated projects

Number Title Start Funding scheme
153934 The Future of Swiss Hydropower: An Integrated Economic Assessment of Chances, Threats and Solutions 01.10.2014 NRP 70 Energy Turnaround
153711 Effect of tariff structure on mobilization of energy savings in households 01.02.2015 NRP 71 Managing Energy Consumption
153733 Combining Electricity Models (AFEM-MODEL) 01.11.2014 NRP 70 Energy Turnaround

Abstract

The role of energy storage is subject to an intense debate internationally reflecting a lack of consensus about the techno-economic potential and respective merits of the various energy storage technologies. This is largely due to the wide spectrum of possible applications, the potential to deliver multiple services (revenue stacking), and unclear market developments which make economic assessments difficult. To the best of our knowledge, no comprehensive cost-based analysis considering the potential role of bulk and distributed technologies for Switzerland has been performed to date that could inform a comprehensive national energy storage strategy. The objective of the proposed research project is to address this gap by performing a holistic investigation of the role of competing and/or complementary electric, thermal and chemical energy storage technologies in achieving greater penetration of renewable energy technologies and more efficient and effective use of energy in the context of the Swiss energy transition. In the first task, comprehensive, detailed and robust information and data on the status of, and prospects for, technical and cost performance of selected storage technologies will be collected to serve as a basis for an expert elicitation exercise. This will help identify drivers of future cost reduction and technical improvement, and deliver cost and performance estimates under a range of scenarios. All technologies retained after pre-screening will be characterized with a set of parameters describing these at an appropriate level of detail for techno-economic modelling and optimization.As second task, two distinct but complementary models will be developed to allow for a comprehensive investigation of energy storage in the Swiss energy transition:1.)A “single-layer model” adopting a ‘’social planner perspective” and used to identify the best mix of supply and storage technologies to achieve minimal cost or minimal energy use and/or CO2 emissions; 2.)A “double-layer model” used to investigate the influence of the dynamics of the electricity market, including long term (price, demand developments) and short/medium term (intermittent RES generation) uncertainties, and the value associated with the deployment of local energy storage capacity for different market actors in both rural and urban contexts. Finally, the third task will aim at a comparative analysis across various scenarios under the two modelling approaches, including sensitivity analysis around key boundary conditions. Conclusions will be drawn with regards to the feasibility and value proposition of a deployment of energy storage technologies at scale, of their potential role in the future of the Swiss energy system as well as of the role and implications of different policy measures.Results will be shared in the form of peer reviewed scientific papers in international journals, as well as dedicated workshops. Our close involvement in the different SCCERs will also provide opportunities to share the outcomes of the study during their respective annual conferences and/or technical workshops. Finally, our results will also feed into the recently launched “Forum Energy Storage Switzerland”.
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