This document discusses transparency requirements for electricity in Ukraine according to Energy Community frameworks. It explains why transparency is important for market opening and accurate pricing. The key frameworks requiring transparency are outlined, including directives on electricity, infrastructure, renewables, and security of supply. Detailed operational transparency requirements from the Electricity Regulation and Transparency Regulation are presented, including requirements to publish transmission data, load data, generation data, and balancing data. The document concludes that ensuring quality operational data publication is important for a credible market and non-discriminatory access.