1. Hydropower for a Sustainable Europehttp://www.eurelectric.org/media/26690/hydro_report_final-2011-160-0011-01-e.pdf
2. Hydropower in Europe. Powering Renewableshttp://www.eurelectric.org/media/26690/hydro_report_final-2011-160-0011-01-e.pdf
3. Pathways towards a 100% Renewable Electricity Systemhttp://www.umweltrat.de/SharedDocs/Downloads/EN/02_Special_Reports/2011_01__Pathways_Chapter10_ProvisionalTranslation.pdf?__blob=publicationFile
4. European Commission Welcomes Electricity Subsea Cables Linking Norway to Germany and UK,2014
5. Vannkraft i Norgehttps://no.wikipedia.org/wiki/Vannkraft_i_Norge