Cost-Benefit Analysis of Battery Energy Storage in Electric Power Grids: Research and Practices. - Iver Bakken Sperstad; Maren Istad; Hanne Sæle; Magnus Korpås; Irina Oleinikova; Seppo Hänninen; Sergio Motta; Konstantina Panagiotou; Christina Papadimitriou; Venizelos Efthymiou; Chresten Træholt; Mattia Marinelli (ISGT-Europe, 2020)