In the context of Brazil’s rising energy-related greenhouse gas (GHG) emissions, we develop a forward-looking analysis of the domestic renewable energy policy framework. We probe the overall effectiveness of this framework by focusing on instrument design (in terms of stringency and predictability) as well as policy coherence. We analyze the development of solar, wind and hydropower, as well as biodiesel and ethanol, in the period between 2003 and 2018. We find strong increases in stringency for biodiesel, solar and wind power, marginal ones for ethanol, and decreasing ones for hydropower. Predictability presents a consistent challenge for policy effectiveness, with the exception of biodiesel. Overall policy coherence improves with fossil fuel subsidy reductions after 2014, although the complex environmental licensing regime as well as ad hoc fiscal interventions and price controls in the fuel markets create tensions for biofuels expansion. The policy framework as it has evolved through the period under consideration is neither likely to slow down/reverse the growth trend in natural gas consumption for power generation, nor to significantly alter the fuel mix in light-vehicle transportation. Considering that improvements in the policy framework are partially driven by non-climate rationales, we conclude that rising energy-related GHG emissions will increasingly challenge Brazil’s contribution to international temperature targets while diminishing its stature in global climate diplomacy.