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 paper presents the technology used for extracting the energy of geothermal water that comes from a closed reservoir without decreasing the pressure of the reservoir. In order to do this, the reinjection of heat depleted geothermal water is obligatory. Therefore, beside the production well, an injection well is mandatory. Also, because of the high concentration of dissolved solids and to avoid...
This study examines the feasibility of harnessing biogas from waste biomass, to replace natural gas used in fast-acting turbines that manage the intermittency of the Irish Electric Grid, in a high renewables penetration scenario. A simplified model of the complex national grid was developed to mimic the exchange of electricity across the country's largest generation points and consumption centers...
The German “Energiewende” aims at fostering a de-carbonisation of the entire energy system. In the electricity sector, a shift from traditionally nuclear and coal-based production towards renewable energies and lower carbon intensive gas power plants can be expected. Additionally, heat production from gas fuels will play a more dominant role. This results in a stronger dependence of the electrical...
Natural gas-fired power plants (NGFPPs) are considered a highly flexible component of the energy system and can facilitate the large-scale integration of intermittent renewable generation. Therefore, it is necessary to improve the coordination between electric power and natural gas systems. Considering a market-based coupling of these systems, we introduce a decision support tool that increases market...
This paper analyses the development of natural gas prices in Central and Eastern Europe (CEE) and assesses its drivers. Furthermore, the relation to recent changes in import contracts is discussed. The methodological approach consists of a panel analysis, in which wholesale gas prices in CEE countries are explained by a set of exogenous drivers, and a descriptive part on changes in contracts. The...
With the expansion of renewable energy's contribution to the energy mix, balancing the electricity grid is becoming increasingly challenging. Alongside other solutions, Power-to-Hydrogen concepts are gaining significant interest. In this paper, the “Task 38”, initiated by the Hydrogen Implementing Agreement of the International Energy Agency, presents the first of a two-step literature review regarding...
Russia is the second largest gas producer in the world after the US and the main exporter of natural gas to the EU. There were 257 gas-producing companies in Russia at the beginning of 2016, among them the largest producer and exporter of the pipeline gas — Gazprom with production share of 64 %. Currently, Gazprom maintains the status of the pipeline export monopolist. At the same time, it receives...
As the rapid increase of electricity consumption combined with the issue of restricted fossil fuels in recent years, renewable energy generation has been actively developed, particularly in form of wind power generation. However, due to the limited penetration into local power grid, a large proportion of renewable power production has to be curtailed or directly wasted. To solve this problem, Power-to-Gas...
The US production of unconventional gas has grown drastically in recent years and is proved to be a case of success. In former years the US imported natural gas in order to meet their high demand and, therefore, invested in LNG import terminals. Since then, production of shale gas is considered to have a potential to change the world natural gas market, as both scientific community and policy makers...
Installation of gas-based power plants and energy carrier availability to final users have given rise to the need of synergies in the development of networks for electricity and gas. Moreover, electrically driven gas compressor stations and power-to-gas technologies open further levels of interaction. In this context, the analysis of interaction of electric power and gas flows and the development...
Methane hydrates are considered as new natural gas resources. For long time commercial gas production, it is needed to increase gas production efficiency. In this study, we carried out hydrate dissociation experiments by depressurization with wellbore heating method for artificial sandy cores. Contribution of wellbore heating was small for hydrate dissociation. This is coursed that the production...
As electricity is the driving force of modern civilization, affordable electricity is must for the enrichment of economy for any developing countries. But it is very unfortunate that power sector of Bangladesh is beset with two crucial problems-inadequate supply of electricity and irregular price hike of electricity. This paper tries to investigate the major obstacles in achieving the access to affordable...
Emerged Fossil-based fuels like coal, natural gas and petroleum provide about 85% of the developed world's energy[1]. The World Energy Resources 2013 indicates that around 82% of the total energy in the world is being supplied by fossil fuel[2]. All fossil fuel sources are being constantly depleting and can't be replaced within any practical timespan. The estimates mentioned in Table I below provide...
The development of reliable energy scenarios are become increasingly more important and crucial due to scientific interest but also because it is essential for the deployment of effective energy policies in the territory. The depletion of Fossil Fuels and the need for the most industrialized countries to achieve the target of a sustainable development have induced important national, European and...
Weather elements such as temperature and solar radiation play a crucial role in renewable power production as well as in power consumption. In this research, we address risk management issues of a power producer for its weather, price and production risk exposures. We investigate the extent of natural hedge embedded in the dependence of power production using renewable energy sources and power consumption...
This work presents a geospatial computational tool—GeoLCOE—for estimating the levelized cost of energy (LCOE) of multiple power generation technologies in Colombia. This tool is designed for assessing both economically and technically new generation projects across the Colombian geography. This tool computes the LCOE of renewable and non-renewable generation technologies for multiple locations based...
Bangladesh is said to be one of the biggest energy starved countries, with the present demand for electricity at 9000 plus MW (Mega Watt) as opposed to the production of 6500 to 7500 MW. Access to electricity in Bangladesh is one of the lowest, about 40 percent of the total population are without access to adequate, cheap and quality energy. At present, we have to depend on indigenous energy resources,...
Renewable energy resources and improvements in energy generation and usage are critical policies of energy dependent countries. 2012 BP report states that 48 % of both electricity and natural gas consumptions are realized by industrial usage. In developing countries manufacturing sites are increasing at least 4% a year. Cogeneration is a good solution for the efficiency improvement since it reduces...
One of the main factors impacting the system reliability nowadays is the growing interdependence between electricity and gas networks due to the increase in the installation of gas units. Security-constrained unit commitment (SCUC) models are utilized to economically schedule generating units without compromising the system reliability. This paper proposes a novel SCUC formulation that includes dynamic...
In this work the characterization of pollutants emission of two different commercial prime movers producing electricity and heat during the cold season for a multi-apartment housing situated in Italy is addressed. In particular, an internal combustion engine and a microturbine, both fed by natural gas, have been analyzed separately. For each prime mover, the emission of CO2, CO and NOx resulting from...
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.