Application of battery-based storage systems in household-demand smoothening in electricity-distribution grids
This article analyses in technical terms the application of battery-based storage systems for household-demand smoothening in electricity-distribution grids. The analysis includes case studies of Denmark, Portugal, Greece, France and Italy. A high penetration of photovoltaic systems in distribution grids is considered as an additional scenario. A sensitivity analysis is performed in order to examine the smoothening effect of daily demand profiles for different configurations of the battery system.
Effects of North-African electricity import on the European and the Italian power systems: a techno-economic analysis
Several European initiatives consider the electrical integration of the Euro-Mediterranean region a key priority for meeting future European Union (EU) energy policy goals. Ambitious plans include the development of Renewable Energy Sources (RES) in the region as well as transmission interconnectors between the two shores of the Mediterranean Sea.
Classification and trend analysis of threats origins to the security of power systems
This paper presents a framework to classify threats to power system secure operation. Threats have long been recognized; however, there lacks a categorical classification of them due to various individual perspectives from different organizations. The power system is evolving to a smart, super, and clean grid, accompanied by interior diversified and emerging threats. Furthermore, threats from exterior factors, intentional and non-intentional, conventional and new-born, to power systems have become more severe than ever before.
Characterisation of electrical energy storage technologies
In the current situation with the unprecedented deployment of clean technologies for electricity generation, it is natural to expect that storage will play an important role in electricity networks. This paper provides a qualitative methodology to select the appropriate technology or mix of technologies for different applications. The multiple comparisons according to different characteristics distinguish this paper from others about energy storage systems.
Smart Energy Grids and Complexity Science
This report proposes ideas and an approach to address present and future challenges in future smart energy systems through the particular lenses of complexity sciences.
Complexities arising inside and around emerging energy distribution systems prompt a multilayered and integrated approach in which different disciplines and areas of expertize are pooled together. The interfaces between system layers and intellectual disciplines are the focus, rather than on the details of any individual layer or the particularities of one approach.
Assessing Smart Grid Benefits and Impacts: EU and U.S. Initiatives
In the last few years, initiatives on Smart Grids have been growing in number and scope on both sides of the Atlantic. A variety of projects has been deployed throughout Europe and US with different aims and results. Substantial public and private investments have been committed to research and development (R&D), demonstration and deployment activities. At this stage, there is a need to evaluate the outcome of implemented projects and share experiences and lessons learned.
Guidelines for conducting a cost-benefit analysis of Smart Grid projects
Following the inventory of Smart Grid projects carried out by the JRC in 2011, the goal of this report is to provide guidance and advice for conducting cost benefit analysis of Smart Grid projects. We present a step by step assessment framework based on the work performed by EPRI (Electric Power Research Institute) on cost-benefit analysis and provide methodological guidelines and best practices. Modifications to fit the European context have been proposed wherever necessary.
Guidelines for cost-benefit analysis of smart metering deployment
The goal of this report is to provide guidance and advice for conducting cost benefit analysis of smart metering deployment.
We present a step by step assessment framework based on the work performed by EPRI (Electric Power Research Institute), and we provide guidelines and best practices.
Several additions and modifications to fit the European context have been proposed. This work draws on the existing collaboration between the EC and the US Department of Energy (DoE) in the framework of the EU-US Energy Council.
Solar import from Africa: the Italian and the European perspective
Goal of the present work is to provide a first preliminary analysis on the effect of African solar energy import on the Italian system at 2030.
In particular, the aim is to provide a first preliminary answer to questions like:
· what flow will prevail in Italy at 2030 (wind from the Northern border or solar from the Southern border);
· how could the market prices be modified as the effect of RES import from North and from South.
Impact of Variable Renewable Energy on European Cross-Border Electricity Transmission
The estimated growth of Europe’s electricity demand and the policy goals of mitigating climate change result in an expected increase in variable renewable energy. A high penetration of wind and solar energy will bring several new challenges to the European electricity transmission network. The objective of this paper is to understand the effects of a high penetration of variable renewable energy sources (RES) on the demand for cross-border electricity transmission in Europe.
The European research project REALISEGRID: transmission planning issues and methodological approach towards the optimal development of the pan-European system
In Europe different trends and issues may strongly impact on the power transmission system. This poses new challenges to the European TSOs (Transmission System Operators), whose role becomes more complex. In this frame, transmission expansion planning criteria crucially need to be revised and extended towards advanced solutions.
A Smart Grid Simulation Centre at the Institute for Energy and Transport - Integration of large amounts of offshore wind energy
In this paper the Smart Grid simulation centre facilities of the Institute for Energy and Transport (IET), Joint Research Centre (JRC) of the European Commission's (EC) are presented, providing a specific application of our work. The Smart Grid Simulation Centre is intended to combine electrical power components and communication/control equipment with system simulation tools. In this way the Centre can test grid
Behaviour of Multi-Terminal Grid Topologies in Renewable Energy Systems Under Multiple Loads
Decarbonization policies adopted worldwide are leading to a steadily increasing deployment of renewable energy sources (RES). In Europe, for example, a multitude of wind farms is built at (predominantly) onshore and (increasingly) offshore sites. The connection of offshore wind farms is expected to promote the realization of Multi Terminal Grids (MTG), which include High Voltage DC (HVDC) transmission systems requiring high voltage inverters.
Analysing the efficient use of energy in a small smart grid system
Smart grids systems, for being profitably implemented, will have to deliver advantageous results to costumers, investors and operators. This can be realized by providing efficient, secure and reliable systems, connecting distributed renewable energy sources and enabling advanced services. The analysis of those potential benefits should consider all components of smart grids from the energy sources to the consumers, including the communication and power portions of the system.
European power grid reliability indicators, what do they really tell?
The European Network of Transmission System Operators for Electricity has been publishing network reliability data for major fault events in the European electricity transmission network since 2002. The work presented focuses on three reliability indicators provided for each major fault event: energy not supplied, total loss of power and restoration time. The purpose of this paper is to assess the usefulness of these indicators and to gain a better understanding of the impact of network topology on transmission network reliability.
A Multidimensional Critical State Analysis for Detecting Intrusions in SCADA Systems
A relatively new trend in Critical Infrastructures (e.g., power plants, nuclear plants, energy grids, etc.) is the massive migration from the classic model of isolated systems, to a system-of-systems model, where these infrastructures are intensifying their interconnections through Information and Communications Technology (ICT) means. The ICT core of these industrial installations is known as Supervisory Control And Data Acquisition Systems (SCADA).
The emerging energy web
There is a general need of elaborating energy-effective solutions for managing our increasingly dense interconnected world. The problem should be tackled in multiple dimensions -technology, society, economics, law, regulations, and politics- at different temporal and spatial scales. Holistic approaches will enable technological solutions to be supported by socio-economic motivations, adequate incentive regulation to foster investment in green infrastructures coherently integrated with adequate energy provisioning schemes.
Complexity aided design: the FuturICT technological innovation paradigm
"In the next century, planet earth will don an electronic skin. It will use the Internet as a scaffold to support and transmit its sensations. This skin is already being stitched together. It consists of millions of embedded electronic measuring devices: thermostats, pressure gauges, pollution detectors, cameras, microphones, glucose sensors, EKGs, electroencephalographs. These will probe and monitor cities and endangered species, the atmosphere, our ships, highways and fleets of trucks, our conversations, our bodies--even our dreams ....What will the earth's new skin permit us to feel?
Development of electric network in Europe: the current situation and perspectives
European Security – A European Perspective
In spite of its critical role, energy security lacks a universally agreed definition, which given its complexity may well just be unrealistic. The concept is still used in a wide range of reports and documents, often without discussion of its dimensions and their significance. As a consequence, the literature is characterized by an almost overwhelming focus on securing supplies of primary energy sources and geopolitics. Clearly, views on energy security also differ widely between nations.