Accumulated carbon dioxide from fossil fuel power plants is one of the main contributors of carbon dioxide emission in the atmosphere since industry revolution. With more and more countries claiming its action plan on increasing the renewable energy installed capacity and increasing the electricity generated by renewable energy, conventional fossil fuel power plant without carbon capture and storage might face shut down during its operational lifetime. However, installing carbon capture equipments will only reach carbon neutrality in the power sector. Furthermore, shutting down those power plants will not help to remove carbon dioxide that has emitted into the atmosphere.
Therefore, further emission reduction methods is introduce to cut down the accumulated emissions a power plant could emits into the atmosphere during its operational lifetime. For example, introducing biomass carbon capture technologies to existing power plant might help to reduce part of the greenhouse gas that has gone into the atmosphere in the past. Applying direct air capture (DAC) technology can also bring down the carbon dioxide concentration in the atmosphere.
This talk explains the importance of shifting from carbon neutral technology to negative emission technologies.