The storage capacity of underground gas storages in the Czech republic

Sources of natural gas are in most cases located in remote areas far from the places where the gas is utilized, i.e. especially developed industrial countries to which it is transported via pipeline. However, transit gas pipelines, which are transporting extracted gas to the consumers, have a relatively limited peak capacity, the transit supplies essentially have a stable character and are not able to cover increased seasonal or peak demands for gas in gas distribution networks. The solution of this problem is the main task for underground gas storages (UGS) that through the operative regulation maintain stability and reliability of the entire gas system. This article provides a general list of options that can increase the storage capacity of natural gas in underground gas storages and focuses on factors that influence the options of an individual UGS

If Another Gas Dispute Breaks out between the Ukraine and Russia, Would Europe Now Be Equipped to Deal with It?

In January 2009, the supply of natural gas from Russia via the Ukrainian pipeline system was interrupted for nearly two weeks. Particularly the countries in Southeastern Europe were ill-prepared for such an event. Disputes regarding both the payment of natural gas supplies and transit rights between Russia and Ukraine have recently flared up again, which gives rise to the question of whether the EU is now better prepared if a similar scenario to that of January 2009 were to happen again. A number of measures have been introduced since the beginning of the year aiming to overcome any delivery shortfalls, but only a few of them have actually already been implemented, e.g. the creation of technical requirements to reverse the flow of natural gas. Therefore, supply shortages in some Southeastern European countries can not be fully excluded.Natural gas, Gas storage, Security of supply

Opportunities for large-scale energy storage in geological formations in mainland Portugal

This article presents the methodology and results of the first screening conducted in Portugal to identify geological formations suitable for large-scale storage of energy from renewable sources. The screening focused on the identification of adequate porous media rocks, salt formations and igneous host rocks that could act as reservoirs for gas (hydrogen or methane) storage, Compressed Air Energy Storage, Underground Pumped Hydro and Underground Thermal Energy Storage. Public access geological information was collected, compiled in a database and spatially referenced in a GIS environment. The GIS and database were cross-checked with criteria for selecting geological reservoirs and with existing or anticipated spatial, environmental and social constraints. In a third step the feasibility of deploying each large-scale energy storage technology in each prospective reservoir was assessed and classified according to confidence, ranging from unlikely to proven, and to proximity to areas with wind or solar energy potential, accessibility to power transmission lines and natural gas networks. The outcome is a first screening of priority sites to be studied at the local scale in future projects. Early target for detailed studies are the existing salt caverns and an abandoned salt mine in the Lusitanian Basin. Natural gas storage in salt formations is being carried in the region for decades, proving the adequacy of the salt formations and demonstrating the social acceptance. Porous media aquifers in the same Lusitanian basin may also hold an interesting potential, although there is considerable uncertainty due to the scarcity of geological data about deep aquifers. The Sines industrial cluster, in SW Portugal, is another interesting target area, due to the existence of a host rock with proven containment capacity. The technologies with the best potential for application in the Portuguese geologic context seem to be CAES and Underground Gas Storage linked to Power-to-gas projects

International natural gas markets: problems and ways of their overcoming

The opportunity for cooperation in oil and gas sphere between Ukraine and the EU, the use of Energy Community tools, the deep and comprehensive free trade area, Ukraine’s joining the single European market for gas was discussed. The CIS analysis of the standardization and Legal Framework in the gas sector and the urgent need of it improvement and development was made. The main trends in the international gas markets were shown

IMPROVEMENTS IN THE EU GAS TRANSMISSION NETWORK BETWEEN 2009 AND 2014

The report compares the European gas infrastructure between 2009 and 2014 to demonstrate how Reg. (EC) 994/2010 has promoted and reinforced security of gas supply. Infrastructure improvements and results of a country-based simulation model analysing a Ukrainian and a Russian shortage of gas are presented.JRC.F.3-Energy Security, Systems and Marke

Simulating security of supply effects of the Nabucco and South Stream projects for the European natural gas market

Due to the increasing European import dependency, significant additional natural gas volumes will be required. In addition to the Nord Stream pipeline, the Nabucco and South Stream pipeline are projects planned for the next decade to provide further gas supplies to the European market. As one of the European Union’s energy policies’ foci is security of supply, the question can be raised if and how these projects contribute to this objective not only in terms of diversification but also in case of supply disruptions such as occurred in 2009 during the Russia-Ukraine gas crisis. This paper discusses the impact of these two major gas import pipeline projects on the South-Eastern Europe gas supply and analyzes their effects on gas flows and marginal cost prices in general and in case of gas supply disruptions via Ukraine in a model-based analysis with the European natural gas infrastructure and dispatch model TIGER.Natural gas; security of supply; Nabucco; South Stream; Europe; linear-optimization; transport infrastructure

11th EEEIC International Conference on Environment and Electrical Engineering – Student Edition : Wrocław-Ostrava-Cottbus 7th - 12th of May 2012

In the time of increased awareness about the environment problems by the public opinion and also intensive international efforts to reduce emissions of greenhouse gases, as well increase of the generation of electrical energy to facilitate industrial growth, the conference offers broad contribution towards achieving the goals of diversification and sustainable development. Focus of the student conference is to promote the discussion of views from scientists and students from Wroclaw University of Technology, Technical University of Ostrava and Brandenburg Technical University of Cottbus. The conference offers prominent academics and industrial practitioners from all over the world the forum for discussion about the future of electrical energy and environmental issues and presents a base for identifying directions for continuation of research