Table 9.2. Quantity and Net Summer Capacity of Operable Environmental Equipment, 2004 - 2014



Flue Gas Desulfurization Systems Electrostatic Precipitators Baghouses Select Catalytic and Non-Catalytic Reduction Systems Activated Carbon Injection Systems Direct Sorbent Injection Systems
Year Quantity Associated Net Summer Capacity (MW) Quantity Associated Net Summer Capacity (MW) Quantity Associated Net Summer Capacity (MW) Quantity Associated Net Summer Capacity (MW) Quantity Associated Net Summer Capacity (MW) Quantity Associated Net Summer Capacity (MW)
2004 535 112,874 1,555 324,712 527 57,745 980 215,955 123 4,435 47 5,820
2005 539 112,372 1,542 324,511 527 57,948 1,058 235,221 128 4,693 47 6,765
2006 538 115,698 1,494 317,408 538 60,556 1,141 254,455 139 6,859 55 7,333
2007 565 129,555 1,494 317,296 555 65,587 1,176 263,382 141 7,735 56 7,407
2008 612 149,575 1,469 316,356 575 68,357 1,227 274,510 169 17,391 59 7,506
2009 652 172,829 1,454 313,902 596 73,778 1,299 296,598 227 39,546 62 8,047
2010 691 199,107 1,408 310,031 609 83,322 1,337 312,208 262 54,183 63 8,527
2011 704 209,618 1,362 306,447 632 98,422 1,385 328,228 274 59,057 72 8,783
2012 699 217,024 1,284 297,817 628 101,508 1,427 341,785 287 63,709 80 10,424
2013 674 219,019 1,205 288,633 634 104,141 1,427 347,327 259 61,085 93 12,740
2014 669 223,305 1,159 283,391 617 105,580 1,440 354,277 277 68,697 98 15,918

Note:
'Associated Net Summer Capacity' is defined as the net summer capacity of the generators that are associated with the operation of this environmental equipment.
In some cases respondents have reported equipment late. Counts and capacity may have changed from prior publications of this table because of late reporting.
Data for 2005 and earlier are based primarily on Form EIA-767 data. In 2006, the Form EIA-767 was suspended. Data for 2007 and later are based primarily on Form EIA-860 data. All data for 2006 are inferred based on submissions from subsequent years. Beginning in 2013 environmental data was collected at a more detailed level, which increases its accuracy and in some cases reduces the equipment counts.

Source: U.S. Energy Information Administration, Forms EIA-767, "Steam-Electric Plant Operation and Design Report" and Form EIA-860, "Annual Electric Generator Report."