During the recent Jakarta Car Free Day on 28 July, Indonesia’s Minister of Energy and Mineral Resources, Ignasius Jonan, led a campaign called the National Movement of A Million Solar Roofs (Gerakan Nasional Sejuta Solar Atap) to promote the country’s solar rooftop utilisation.The campaign is an effort to bolster solar installation as listed in Indonesia’s National Energy Plan (RUEN), which targets solar photovoltaic (PV) installation of 6.5 gigawatt (GW) by 2025 and 45 GW by 2050.