Building out renewable electricity supply is one option to provide low-carbon energy for DAC(CS). Another is nuclear energy, given its low carbon footprint and its continuous operational capacity. Reliance on natural gas and existing natural gas infrastructure to power high-grade heat DAC systems (i.e., Technology 1A could use an oxy-fired calciner for solvent regeneration) is also possible, however it may be met with resistance as the call to end fossil fuel use grows.