We investigate the concept of connectedness, which is important for risk measurement and management in German energy market. Understanding and learning from these mechanisms are essential to avoid future systemic disasters. To deal with large portfolio selection, we propose regularization...

Forecasting of electricity day-ahead prices has become an important field in recent research due to the tremendous increase in unpredictable renewable power in-feed to the electricity systems. We propose new methodology that is able to capture the intraday structure and the structural brake from...