The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
The implementation of emission certificates in Europe in 2005 has lead to new uncertainties especially for power companies resulting in additional costs for the power generation. The introduction of certificates goes along with political conditions and objectives particularly in the European Union until 2020. In consequence, these regulations take influence on the power plant scheduling as well as...
Electricity theft is a major problem in developing countries and it has been very difficult for the utility companies to detect and fight against the people responsible for theft. This paper proposes an architectural design of smart meter, external control station, harmonic generator, and filter circuit, which can detect and chastise the appliances of people responsible for electricity theft. The...
Climate change and security of supply have made it imperative for Europe to look at renewable sources of energy. Among the available sources, wind has emerged as the preferred option and this is evident from the fact that in 2008, wind formed the highest proportion of total capacity addition in Europe. Improvement in turbine efficiency, which in turn reduced the per unit generation cost of wind turbine...
Pioneering efforts in showing how electricity energy storage can be a valuable asset in a Smart Grid Distribution System have been in process for the last few years. Several demonstration projects were completed to show how substation loading could be controlled and managed to delay upgrades. The next step was to show how the load deferral benefit could be combined with distribution circuit automation...
Hybrid renewable energy systems are demonstrated around the world. Some of the systems can be operated in both on-grid and off-grid modes. Some other systems are operated in on-grid mode, but try to minimize the electricity flow as much as possible. Demonstrations in Japan, Hawaii, Norway, and other areas are introduced as examples of the hybrid renewable energy systems.
Integration of plug in hybrid electric vehicles and electric vehicles (PHEVs and EVs) includes a wide area of topics like grid effects, different charging concepts, charger designs, harmonics from the charger etc. This short paper gives an introduction to ongoing work within this field in Sweden, and shows on research work within the topic at Chalmers University of Technology.
This paper analyzes prospects in future energy networks to meet expected demand with a multi-carrier energy system in dependence of storage power. We describe solution approaches to solve a multi-period optimization model that combines different energy storages within a network of clusters of local energy converters and storages, so called “Energy Hubs”. The planning of the Energy System is tested...
Asymmetric information in the electricity market creates incentive for customer aggregators (ESCOs, EMCOs, LSEs, etc.) to bid strategically as new information arrives. Such companies are pooling demand to provide enhanced services to customers. Since such demand pooling companies are not defined generically, all types of demand pooling companies will be termed demand serving company (DSC) to not confuse...
Advances in the development of electric vehicles, along with policy incentives will see a wider uptake of this technology in the transport sector in future years. However, the widespread implementation of electric vehicles could lead to adverse effects on power system networks, especially existing distribution networks. This work investigates some of the potential impacts from various levels of uncontrolled...
Within the context of recent interest in `Smart Grids', this paper considers the possibility that domestic consumers could participate in demand side management. Price is one of the main concerns for domestic consumers, and hence Real Time Pricing (RTP) can have an influence on consumers with dispatchable generation such as micro combine heat and power (micro-CHP). These systems can reduce the annual...
This paper aims at identifying the options for designing an offshore electricity grid and the legal instruments to create such a grid. It will make a first attempt at presenting the technical and legal considerations which coastal states, EU and national legislators and policy makers should take into account in the coming years when planning and weighing their grid design options. By contrast to the...
This panel paper presents some outlines on the energy management of electric power microgrids with hybrid components. The hybrid nature of the microgrid is attributed to renewable energy sourced generation, energy storage, schedulable loads and information enabling technology such as smart meters. The panel paper and the accompanying presentation aim to describe the electric energy management visà-vis...
This paper presents the result of quantitatively evaluating the energy saving effect by the combination of pHV and SOFC as parameters of the usage pattern of pHV and the demand characteristic of a house. First, we modeled energy system models of the house, and derived the optimal operation of pHV and SOFC by the analysis. Then, we compared the analysis result of various driving patterns, driving distances,...
The paper provides an overview of global activities associated with harnessing ocean renewable energy resources for generating electricity as well as for other utilizations. Developmental status and maturity of various conversion technologies to harness energy from tides, waves, tidal stream, ocean currents, temperature gradient, and salinity gradients are presented.
The strive for sustainable energy systems will most likely lead to an increased use of renewable energy sources which to a large extent are fluctuating. Therefore, a larger demand for balancing capacity will be required to maintain system security. Plug-in Hybrid Electric Vehicles (PHEV) represent a potential storage which could offer additional balancing power. Here, the applicability of PHEVs for...
This paper will discuss the purpose and value of energy storage as a transitional technology towards SmartGrids, as well as its utilization within the future network operational arrangements. The paper will investigate assessment techniques of energy storage at a local, system and global level, with a focus on the ways that energy storage may be valued. The paper will analyse existing techniques that...
Summary form only given. The paper presents that smart microgrid could offer a perfect power system with higher reliabilities which could guide customers to lower their costs and utilize electricity more efficiently. The task of improving the efficiency and upgrading the resiliency of the electric grid, in order to support clean and renewable energy, is one we cannot let be exported or delegated overseas...
A number of states in the United States have taken collaborative actions to control for greenhouse gas (GHG) emissions from state governmental level. The effort by the western and the eastern states is called the Western Regional Climate Action Initiative and Regional Greenhouse Gas Initiative (RGGI), respectively. RGGI is a collaboration by 9 states in the northeast United States targeted at regional...
The paper focuses on the importance of demand management and load control for the development of electric power system and the provision of electricity supply reliability. The potential of controllable loads in Russia is estimated including electric vehicle transport, climate systems, household, industrial and agricultural consumers. The potential and optimal volumes of perspective controllable loads...
Vehicle-to-Grid (V2G) systems are an emerging concept of utilizing the battery storage of electric vehicles (EVs) for providing power system regulation services. This technology could be used to balance the variable electricity generated from various renewable energy sources. This article considers a model of an aggregated electric vehicle based battery storage to support an isolated power system...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.