Attitudes towards renewable energy technologies have been increasingly recognised to play an important role in the success of the transition from conventional to renewable energy. Although most of the empirical studies have focused first, on the Global North and second, they considered mainly the public society as the households. In the current research, we selected Iran, as a fossil fuel-rich developing country from the Global South, and we aim to identify determinants shaping attitudes of governmental institutions towards the adoption of solar PV. We asked: What are the attitudes of governmental organisations towards solar PV? What main issues shape these attitudes? and How did the adoption of solar PV in governmental organisations change the attitudes of these organisations? In order to do so, we conducted 12 semi-structured in-depth interviews with high authority executive levels in governmental organisations that have already adopted and did not adopt solar PV yet, in Golestan and Guilan (Northern Provinces in Iran). We took an inductive approach to analyse the gathered data and we used the Technology Acceptance Model and Diffusion of Innovation Theories as sensitive concepts in our mind to investigate common and specific issues in terms of attitudes in Iran. We find that the attitudes for Solar PV among the governmental institutions are positively shaped by institutional capacities, and the existing infrastructures, while perceived usefulness and economic costs of solar PV as the main items affecting attitudes negatively and leading to resistance towards acceptance for solar PV. Moreover, the governmental institutions that have adopted solar PV emphasised higher influence and awareness creation among the households via visibility of the results of an innovation. We understand that the previous literature has overlooked first the top-down energy transition in FRDCs and the effective consumer role of governmental organisations in these systems. The findings impl
