Hubert Fechner

• Head of Department at University of Applied Sciences Technikum Wien

Neben der solarthermischen Wärmegewinnung ist die photovoltaische Stromerzeugung eine weitere Form der direkten Nutzung solarer Strahlungsenergie. Im Unterschied zur Solarthermie wird aber hier die Energie der solaren Strahlung direkt in elektrische Energie gewandelt. Im Folgenden werden zunächst wesentliche physikalische Grundlagen dieser Energiew...

It is generally expected that in the future, photovoltaics will be able to contribute substantially to the mainstream power production, and that through their widespread commercialization, Building-Integrated Photovoltaics (BIPV) systems will become the backbone of the zero-energy building (ZEB) European target for 2020. An outlook on the BIPV mark...

This paper reviews the present status and outlook of the building integrated photovoltaics (BIPV) market on a global and European scale. In particular, it provides a comprehensive review of the market situation and the future trends for Austria, Cyprus, France, Germany, Italy and the Netherlands until the year 2020. In addition, as education is see...

In South Africa, the projects for the first two rounds of the Renewable Energy Independent Power Producer Procurement Programme (REIPPPP) have reached financial closure, and construction and commissioning has commenced, on all of the twenty-seven PV sites. The question remains as to what can be expected from these PV facilities in 2015 should all o...

This brochure contains a collection of 34 snapshots of important national, regional and transnational demonstration and demonstration-relevant projects from 18 different countries and regions in Europe. The goal of this brochure on one hand, is to give an overview of the most important information of these projects on one sight, i.e. on one page. T...

While the global photovoltaic market is extremely growing and this technology is more and more seen as important future energy supply which will significantly contribute to the electricity generation, current electricity grids are not yet designed to integrate a steadily increasing penetration of photovoltaic generation. This manuscript discusses t...

An important deliverable of the IEA PVPS Programme is the annual trends in photovoltaic applications report (IEA PVPS Programme, 2008). The latest reports from 2007 with some 2008 data provide an overview of global PV power systems applications, markets and production at the end of 2007 and analyze trends in the implementation of PV power systems b...

Within this paper the goals and dedicated results for building the "National Technology Platform - Smart Grids Austria" are described and presented in detail. The "National Technology Platform - Smart Grids Austria" will prepare a network for relevant Austrian players in the area of Smart Grids and serve as competent discussion and implementation p...

In the past few years, power quality has become a popular issue in electrical engineering. In particular, power quality has gained growing attention with the increasing penetration of distributed generation into power networks. On the one hand, concerns that distributed generation could jeopardise the quality of supply have been raised. These fears...

Photovoltaics has a great potential as a powerful renewable energy source and technology, which can be deployed into a wide range of competitive applications and growing markets and, finally, contribute to a sustainable, secure and efficient energy supply. The photovoltaic activities are slowly emerging and markets are already being created in the...

As a consequence of the ongoing growth of the PV-market cost-effectiveness of PV-systems is increasingly gaining importance. Investors often draw more attention on the profitability of the investment than on ecological reasons. The main parameters which affect the investment's profitability are capital cost, compensation and economic life-time of t...

Die Begrenztheit fossiler Ressourcen steht im Gegensatz zum weiter steigenden Energiebedarf für die Gebäudeklimatisierung. Der Bericht gibt einen kurzen Überblick über solare Kühl- und Klimatisierungsverfahren, die für den Betrieb hauptsächlich solare Energie benötigen. Diese Verfahren leisten somit einen wesentlichen ökologischen und ökonomischen...

It is generally accepted that the heat transfer from the fluid tube of a fin absorber to the fluid itself, depends to a great extent on the flow condition. Laminar flow, as compared to turbulent flow, can result in a considerable loss in efficiency which could often be avoided by the appropriate design of the absorber and the absorber arrangement i...