Lund, Henrik, Poul Alberg Østergaard, David Connolly, Iva Ridjan, Brian Vad Mathiesen, Frede Hvelplund, Jakob Zinck Thellufsen, and Peter Sorknæs. “Energy Storage and Smart Energy Systems”. International Journal of Sustainable Energy Planning and Management 11 (October 29, 2016): 3–14. Accessed April 26, 2024. https://journals.aau.dk/index.php/sepm/article/view/1574.