By Vera Eckert and Nora Buli FRANKFURT (Reuters) – Soaring power and gas prices have rocked energy companies across Europe, forcing utilities and traders to secure extra funds from governments and banks to cover margin call requirements. Below is an outline of how they got to this point: EMERGING RISK? Europe has thousands of energy firms operating in a liberalised power and gas market intended to provide guaranteed competitive prices. Signs of market strain started appearing quickly in 2022 with an unprecedented jump in European gas and power prices due to a confluence of factors, including h…