Energy research, environment, applications and sustainable development
© Aristotle University of Thessaloniki (6/2009)
Power from natural resources has always had great appeal. Coal is plentiful, though there is concern about despoliation in winning it and pollution in burning it. Nuclear power has been developed with remarkable timeliness, but is not universally welcomed, construction of the plant is energy-intensive and there is concern about the disposal of its long-lived active wastes. Barrels of oil, lumps of coal, even uranium come from nature but the possibilities of almost limitless power from the atmosphere and the oceans seem to have special attraction. The wind machine provided an early way of developing motive power. The massive increases in fuel prices over the last years have however, made any scheme not requiring fuel appear to be more attractive and to be worth reinvestigation.

Sustainable energy: challenges of implementing new technologies in Sudan
© Aristotle University of Thessaloniki (6/2009)
Sudan is an agricultural country with fertile land, plenty of water resources, livestock, forestry resources and agricultural residues. An overview of the energy situation in Sudan is introduced with reference to the end uses and regional distribution. Energy sources are divided into two main types; conventional energy (petroleum products, and electricity); and non-conventional energy (biomass, solar, wind, hydro, etc.).

Effects of various electrolyte types on the properties of nanocrystalline TiO2 dye sensitized solar cells
© Aristotle University of Thessaloniki (6/2009)
The main aim of this study is to investigate some of the major factors ffecting the efficiency and stability of solar cells sensitized with simple organic dyes. To this aim, nanostructured TiO2 thin films were prepared and sensitised with Rhodamine B (RhB) in absolute ethanol or methanol.

The important thing is to participate
© Editorial OMNIMEDIA S.L. (5/2008)
The growth in Spanish photovoltaic industry is simply amazing. According to a source close to National Energy Commission (CNE), we have reached a speed of 100MW installed per month.

Krannich Solar Group inaugurate a new branch in Germany
© Editorial OMNIMEDIA S.L. (5/2008)
The past month of April German distribution group, Krannich Solar, with headquarters in Hausen near Stuttgart opened a new office in Unterschleissheim next to Munich, the capital city of the region of Bavaria. The city as well as its outskirts is considered as one of the economically, culturally and technologically richest areas at the European level.

Solar Energy from the New IBC Plant in Crevillente, Spain
© Editorial OMNIMEDIA S.L. (5/2008)
Fotovoltaica IBC, a branch of IBC Solar, has joined Spanish power company Grupo Enercoop to underwrite a major new power plant in Crevillente, near Alicante. The erection of the 7.1 MWp plant raises the capacity of the 6.2 MWp El Realengo Plant that went on-grid in January 2008.

Concentrated Photovoltaics: trackers
© Editorial OMNIMEDIA S.L. (5/2008)
Titan Tracker, specialised firm in manufacturing and commercialization of two-axis solar trackers, has just carried out a specific solar tracker for high concentrated photovoltaics, which was presented in the international Congress CPV Summit held in Madrid during 1st and 2nd April.

Solar Tracking Systems on Roofs and their Profitability
© Editorial OMNIMEDIA S.L. (5/2008)
In anticipation of the change in the Real Decreto which envisions to keep the bonus for roof installations, this kind of installation becomes important due to its profitability. For this reason, the purpose of this article is to show a real example of an existing roof tracking application and the study of its amortization.

Rolls Solar Series: Next Generation Batteries
© Editorial OMNIMEDIA S.L. (5/2008)
Rolls batteries are manufactured in Canada and have earned an unrivalled reputation in the North American Solar market as the premium battery for stand alone systems. The performance of Rolls batteries, coupled with the unique design, make them ideally suited for the rigours of the Renewable Energy market.

From sun to socket
© Editorial OMNIMEDIA S.L. (5/2008)
Today’s photovoltaic systems usually supply power directly to the electrical power system, using methods based on various different concepts. In most cases, the PV generator is directly connected to the electrical power system via the inverter, with solar power being supplied to that grid.

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