Tekijä: Martin Kaltschmitt; Ernst Huenges; Helmut Wolff; Jörg Baumgärtner; Peer Hoth; Martin Kayser; Burkhardt Sanner; Schallenbe Kustantaja: Spektrum Academic Publishers (2001) Saatavuus: Noin 17-20 arkipäivää
Tekijä: Martin Kaltschmitt; Hans Hartmann; Hermann Hofbauer Kustantaja: Springer-Verlag Berlin and Heidelberg GmbH & Co. KG (2009) Saatavuus: Noin 17-20 arkipäivää
Tekijä: Martin Kaltschmitt; Wolfgang Streicher; Andreas Wiese Kustantaja: Springer-Verlag Berlin and Heidelberg GmbH & Co. KG (2013) Saatavuus: Noin 17-20 arkipäivää
Tekijä: Martin Kaltschmitt; Nickolas J. Themelis; Lucien Y. Bronicki; Lennart Söder; Luis A. Vega Kustantaja: Springer-Verlag New York Inc. (2012) Saatavuus: Noin 17-20 arkipäivää
Tekijä: Martin Kaltschmitt; Nickolas J. Themelis; Lucien Y. Bronicki; Lennart Soeder; Luis A. Vega Kustantaja: Springer-Verlag New York Inc. (2013) Saatavuus: Noin 17-20 arkipäivää
Tekijä: Martin Kaltschmitt; Wolfgang Streicher; Andreas Wiese Kustantaja: Springer-Verlag Berlin and Heidelberg GmbH & Co. KG (2005) Saatavuus: Noin 5-8 arkipäivää
Springer Sivumäärä: 564 sivua Asu: Kovakantinen kirja Painos: 2007 Julkaisuvuosi: 2007, 03.05.2007 (lisätietoa) Kieli: Englanti
The utilisation of renewable energies is not at all new; in the history of mankind renewable energies have for a long time been the primary possibility of generating energy. This only changed with industrial revolution when lignite and hard coal became increasingly more important. Later on, also crude oil gained importance. Offering the advantages of easy transportation and processing also as a raw material, crude oil has become one of the prime energy carriers applied today. Moreover, natural gas used for space heating and power provision as well as a transportation fuel has become increasingly important, as it is abundantly available and only requires low investments in terms of energy conversion facilities. As fossil energy carriers were increasingly used for energy generation, at least by the industrialised countries, the application of renewable energies decreased in absolute and relative terms; besides a few exceptions, renewable energies are of secondary importance with regard to overall energy generation.