The world is far from achieving a sustainable and just energy transition, despite the existential threat posed by fossil fuel consumption. Critical ecofeminists have provided an important framework for understanding what keeps us stuck in ‘business-as-usual’, including by observing how the mastery of nature depends upon gendered, racialized, and class hierarchies. For example, some hegemonic masculinities have aligned with fossil fuel power, producing a ‘petro-masculinity’ that defends the violence of fossil fuels. However, gendered hierarchies also shape many solar and wind developments, where the hegemonic masculine identities that buttressed intensive fossil fuel consumption can be – and already are – being transposed onto lower-carbon power. This talk examines the political relationship between ecomodernity and petro-masculinity as twin figures of domination. These two styles are often figured as political opponents, but this talk will situate them in the historical context of colonial capitalism, which has functioned through a Janus-faced rule – the language of equality on the one hand, and violent domination on the other – that continually reappears in the guise of two master figures, dueling but also working together.