Challenges
- Cost of CCS will make coal-fired electricity more expensive than wind power
- Leakage from underground or undersea reservoirs
- Scarcity of potential sites and capacity compared to volumes of greenhouse gas needed to be sequestered on an ongoing basis
- Existing power stations unlikely to be able to have carbon capture technology retrofitted
- CCS currently requires up to 30% more coal than conventional plants to cover the energy needs of CCS (although R&D is rapidly improving efficiencies), and that extra coal must first be mined (which has environmental effects) and transported to the plant (which takes energy)
- Infrastructure required would take years to build
- emissions of acid rain-causing gases like nitrogen oxides and sulfur oxides of a plant that captures CO2 will up to 40 percent greater than the total cradle-to-grave emissions of a modern plant that doesn't capture its CO2 because of the extra coal burnt
Read more about this topic: Carbon Capture And Storage In Australia
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