The Policymakers Tool provides recommendations for policies and regulations that promote the adoption of the photovoltaics (PV) and energy storage systems (ESS) in public buildings with the potential for demand side management (DSM), referred here as PV+ESS+DSM scheme. Apart from recommendations, the tool offers numerical results about (i) the profitability of PV+ESS+DSM systems in certain building types and (ii) the energy self-sufficiency of the building. The tool outputs are based on the measurements collected from the project pilots and the knowledge transferred during our short trainings with building energy managers and the Intelligent Utilization of Photovoltaic Technology (IUPVMED) hub meetings with key stakeholders of the PV+ESS+DSM related market and policy making.