This report describes a project that organized and hosted four online workshops in September 2021 to bring together policy makers and evaluation practitioners to highlight evaluation methods and analysis, and evaluation of energy technologies, programs and policies. This workshop provided insights of the value of having robust evaluation practices through the presentation of best practice, case studies and workshop sessions. The workshop was an important step in developing a platform to discuss and exchange experiences, current strategies, policies, protocols, and regulations for designing and implementing program and policy evaluations. The workshop focused on energy efficiency and renewable energy, and each session was structures to include: (1) teaching about evaluation theory by international experts in the field, (2) examples of practice from practitioners and organizations in the energy field, and (3) small group discussions where participants could consider how to apply what they had learned in their work.