Local authorities are key players in addressing climate change. Since 2008, the European Commission endorses and supports their efforts through the Covenant of Mayors for Climate and Energy (CoM) and notably through the provision of capacity building, technical assistance, sharing of best practices and peer learning opportunities. The initiative helps consolidate best practices to monitor and report on energy consumption and GHG emissions as well as on risks and vulnerabilities at the local level, allowing decision makers to identify priority sectors, set emission reduction targets and adaptation goals and plan relevant measures. This report complements the Covenant of Mayors 2023 Assessment report (Melica et al., 2023), describing the CoM energy activity and estimated savings, based on data for local authorities in EU-27 with a 2030 commitment declared through the MyCovenant reporting platform, through the Baseline Emission Inventories (BEIs), Monitoring Emission Inventories (MEIs) and actions descriptions. It examines energy consumption and production and offers an overview on the progress made on energy savings and renewable energy generation. As a novelty, this data is complemented in this year’s report with CDP-ICLEI track data for the analysis of actions on renewable energy generation.