Fossil fuel power plants with CCS technology are studied to see how efficient and costly they are. The researchers looked at different types of plants (like coal and natural gas) and various factors like capital costs and fuel types. They found that adding CCS to power plants can greatly cut CO2 emissions, but it also makes the plants use more energy and resources. This means that current CCS systems increase resource needs and environmental emissions by about 15-30%. The study also shows that recent cost increases make power plants with CCS more expensive than previously thought. Renewable energy sources could be explored as more cost-effective options for reducing greenhouse gas emissions.