Categoria: Publications

www.huffingtonpost.it // january 2015 The long-awaited Opec Summit in Vienna on thursday ended with nothing concrete: cartel production in 2015 will remain the current one, despite the collapse of more than 30% of barrel price since this summer. Who has interpreted the decision as a deliberate choice by the Saudis to make a price war… Continua a leggere Opec had no choice

www.qualenergia.it // june 2014 Photovoltaics has assumed a role, sometimes that is a dominant one in the coverage of daily requirements. Its cost, especially in southern Italy, is competitive with that of fossil fuels. The near future is auto-consumption and accumulation. How can we change the logic of the electricity market? Giuseppe Artizzu’s article published… Continua a leggere Why solar energy has systemic relevance

16th International Conference on Harmonics and Quality of Power (ICHQP) // 25-28 May 2014 Battery Energy Storage Systems, as well as many distributed generation systems, use voltage source inverter as interface with the grid. These converters require a filtering section to reduce current harmonics injected to the grid. Usually, harmonic filter is a series inductance… Continua a leggere Harmonic Analysis of Output Filters for Grid Connected Converters in Battery Energy Storage Systems

www.huffingtonpost.it // may 2014 A couple of weeks ago it was suggested, provocatively but not too much so that the Russian gas taps should be closed to buyers. Provocation or not, the developments of recent days demonstrate that the energy dependence has a political cost which is too high. Now let’s spare ourselves yet another… Continua a leggere How to put an end to dependence on russian gas

www.huffingtonpost.it // february 2014 The Eni media campaign focuses on the emergency of a competitive European industry, penalized by gas and electricity which is much more expensive than in the United States. The problem is real, but there are also real doubts about the sustainability of a model founded on cheap hydrocarbons. Besides this, what… Continua a leggere The big bluff of oil companies

www.qualenergia.it // february 2014 In the Italian electricity system outlined there is the hypothesis that the closure of part of the thermoelectric capacity would compromise system security. It would be better to leave the reserve margin to drop and see if commodity prices return to levels compatible with ensuring the system. An article by Giuseppe… Continua a leggere Electricity market. Is the design really obsolete?

www.huffingtonpost.it // january 2014 Americans are paying a third of the cost of gas in Europe, and half of that of electricity. The America of Bush and Obama is an enlightened energy model, to be imported to this side of the Atlantic. The numbers are not far from reality, but this conclusion is somewhat hasty.… Continua a leggere The american energy model is not a model

IECON 2013 – 39th Annual Conference of the IEEE, 2013, pp. 7469-7474 // 13 November 2013 In some networks Distributed Generators (DGs) are phasing out conventional power plants in terms of power production but still large efforts are required for providing ancillary services. In this paper the usage of fast response units like a Micro… Continua a leggere Modeling and control of low voltage flexible units for enhanced operation of distribution feeders

Intelec 2013, Hamburg, Germany // 13 – 17 October 2013 With the fast deployment of mobile network the energy consumption is increasing at the same time. The Radio Access Network may occupy more than 60% total energy consumption of a mobile operator. How to improve the energy efficiency of the Base Stations is vital important.… Continua a leggere An OFF-GRID Base Station Powered By Sun Wind, and Water