Researchers analyzed the efficiency and cost of using a new technology called sCO₂ Brayton cycle in coal-fired power plants. They found that power plants using sCO₂ Brayton cycles were more efficient and cost-effective compared to traditional steam Rankine power plants. The sCO₂ Brayton cycles had higher net efficiencies and lower levelized costs of electricity. This technology also allows for smaller turbo-machinery sizes, potentially reducing total capital investment. Overall, coal-fired power plants with sCO₂ Brayton cycles are more efficient and economical than those using traditional steam Rankine power cycles.