Total renewables penetration targets in Europe require a "common currency" which provides a reliable price signal against which the cost of different technologies and renewable paths can be assessed. Guarantees of Origin certificates could become this common currency, incentivising the use of renewable sources as part of corporate fuel mix disclosures, and promoting a net-zero culture. In this Platts Future Energy Podcast episode, Glenn Rickson, Head of European Power Analytics, is joined by Energy Transition experts in the Platts Pricing team to discuss the scope of the Guarantees of Origin markets.