A recent Reuters news article expanded on the discussion of environmental concerns relating to clean coal plant, especially IGCC plants. Some salient points are:
- Since there is no requirement for carbon capture, plants are not being built with this feature.
- IGCC plants cost 20% more than conventional plants, but there are several government incentives that could offset this cost.
- Carbon capture boosts the cost of conventional plants 60%, but only boosts the cost of IGCC plants 25%.
- IGCC plants can remove 90% of mercury at 1/10th the cost of mercury removal in conventional plants.
- In the mid 90's not one utility had plans to build a coal plant, in the last 12 months 120 have been proposed, more than in the last 12 years.
The article is well worth the time to read.