1. BMU (2011) Renewable energies - perspectives for a sustainable energy future, federal ministry for the environment. Nature Conservation and Nuclear Safety (BMU), Berlin. http://www.bmu.de/files/pdfs/allgemein/application/pdf/ee_innovationen_energiezukunft_en_bf.pdf
2. Burkhardt J, Heath G, Turchi C (2011) Life cycle assessment of a parabolic trough concentrating solar power plant and the impacts of key design alternatives. Environ Sci Technol 45 (6): 2457–2464 http://pubs.acs.org/doi/abs/10.1021/es1033266
3. Chandler H (2011) Harnessing variable renewables—a guide to the balancing challenge, international energy agency (IEA), Paris http://www.iea.org/w/bookshop/add.aspx?id=405
4. Electricity regulatory commission (ERC) (2010) Annual report internet publication. http://www.erc.gov.jo/English/Publication/Documents/annual%20reprot%202010.pdf
5. European Academy, Science Advisory Council (EASAC) (2011) Concentrating solar power: its potential contribution to a sustainable energy future, EASAC policy report 16. ISBN: 978-3-8047-2944-5 http://www.easac.eu