FACTBOX-U.S. coal-fired power plants scheduled to shut

Wed Dec 11, 2013 (Reuters) - U.S. power companies have shut or converted about 16,000 megawatts (MW) of coal-fired power plants since 2009 and have plans to shut or convert more than 45,000 MW over the next 10 years or so.

News and Information

The U.S. EPA has issued a supplemental final rule under the renewable fuel standard (RFS) pertaining to biofuels made from giant reed and napier grass feedstock, effective June. 28.

The rule contains a lifecycle greenhouse gas (GHG) analysis of biofuels made from these feedstocks, along with a final regulatory determination that such fuels qualify as cellulosic under the RFS. The rule also addresses concerns over the invasive potential of the feedstocks through a system of registration, recordkeeping and reporting requirements. 

 

Using Closed-loop Biomass to Displace Coal at Portland General Electric’s Boardman Power Plant Carbon Implications
Arundo Is Better than Switchgrass for Biomass Power Generation
By Bruce Dorminey, Correspondent, April 12, 2013. While in the US some regulatory hurdles remain, Europe is already using this fast-growing plant to produce ethanol and electricity.
Characterization of Dried and Torrefied Arundo Donax Biomass for Inorganic Species Prior to Combustion

U.S. Department of Energy - August 2012 Report by: J Matyáš, BR Johnson and JE Cabe.  Portland General Electric (PGE) potentially plans to replace the coal feedstock with torrefied Arundo donax (giant cane) for their Boardman coal-fired power plant by 2020. Since there is only a limited amount of experience with this high yield energy crop and its combustion for the generation of power, PGE would like to characterize dried and torrefied Arundo donax before a test burn and therefore avoid possible ash related operational problems such as slagging, deposit formation and corrosion.

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