Table 9.2. Quantity and Net Summer Capacity of Operable Environmental Equipment, 2007 - 2017



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)
2007 590 131,499 1,496 317,751 556 65,672 1,197 266,397 141 7,735 59 7,602
2008 637 151,520 1,471 316,810 576 68,442 1,250 277,576 169 17,391 62 7,701
2009 677 174,774 1,456 314,356 597 73,863 1,323 300,007 227 39,546 65 8,242
2010 716 201,052 1,410 310,486 610 83,407 1,360 315,222 262 54,183 66 8,721
2011 730 211,754 1,368 307,043 633 98,507 1,408 331,242 274 59,057 75 8,977
2012 726 219,317 1,291 298,425 629 101,593 1,451 344,811 287 63,709 83 10,618
2013 704 219,317 1,218 289,182 637 104,331 1,457 351,217 260 61,160 97 12,985
2014 701 223,793 1,172 283,940 621 105,990 1,471 358,410 278 69,232 104 16,777
2015 692 224,101 1,037 264,905 623 110,820 1,479 359,869 362 106,395 122 23,307
2016 693 228,300 943 252,904 613 112,581 1,479 360,907 479 153,130 125 26,679
2017 676 221,441 886 244,087 601 109,495 1,480 362,591 475 151,153 126 25,762

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."