#Net-Zero Opt-Tech

In the Net-Zero Opt-Tech scenario, more optimistic bioenergy costs drive additional use of biofuels and CDR from bio-CCS, and lower costs for advanced nuclear drive new capacity displacing gas with CCS for generation (Figure 21). Biofuels demand is expanded in industry, including use for non-electric vehicles as well as process energy, and direct use of petroleum decreases. With lower bioenergy costs, direct air capture is not deployed in this case. The lower cost of CDR and reduced petroleum use allows more direct use of natural gas in the optimal net-zero system, although total gas use is lower than in the Net-Zero Ref-Tech scenario due to the shift towards nuclear in the power sector.