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Block M. Andrews, Strategic Environmental Solutions Director at Burns & McDonnell, discussed many greenhouse gas drivers that will have an impact on the electric utility industry and concluded that there are no clean answers for the best GHG reduction strategies. Each mitigation option has implementation issues and constraints and regulatory uncertainty. For example, co-firing with biomass is an attractive option, but that requires a separate fuel feed system and large on-site storage facilities. Corn stover, which has a high chlorine content, could trigger MACT requirements. Similarly, using CO2 to grow algae for biofuels production is attractive because of the potential revenue stream, but that requires a huge land area. |
