Over the last 18 months, the European market for Guarantees of Origin, a certification scheme used to document renewable electricity consumption, has experienced the most price volatility in its history. Is this turbulence set to continue or can we expect some stability and even a recovery in the months ahead? Reporting by Olav Vilnes, Editor Nordics, Montel. Contributor: Petter Nordby, Nordic power market analyst LSEG.