2010 MWCOG Electricity Consumption by Jurisdiction

2010 MWCOG Electricity Consumption by Jurisdiction Jurisdiction DC TOTAL 254,257 11,538,622,434 Pepco Residential 226,272 1,891,782,070 Commercial 24,946 6,529,129,128 Government 3,039 3,117,711,236 Jurisdiction Frederick TOTAL 99,810 3,124,632,080 Potomac Edison Residential 87,364 1,419,265,354 Government 589 325,978,590 Commercial 9,636 815,010,761 769 556,752,879 Lighting 1,452 7,624,496 Jurisdiction Montgomery TOTAL 347,472 10,192,815,959 Potomac Edison Residential 25,955 404,819,630 Government 71 28,866,453 Commercial 1,881 178,520,170 194 46,780,720 Lighting 334 5,976,957 Constellation Residential 11,465 189,813,552 Commercial/ 883 64,308,122 Pepco Residential 279,790 3,504,882,238 Commercial 24,752 4,358,337,377 Government 2,147 1,410,510,740 Jurisdiction Prince George's TOTAL 294,332 7,830,011,059 Constellation Residential 65,073 967,694,233 Commercial/ 6,477 968,463,829 Pepco Residential 201,503 2,289,795,156 Commercial 19,560 2,406,014,908 Government 1,719 1,198,042,933 Jurisdiction Alexandria TOTAL 56,414 1,838,113,901 Dominion Residential 50,186 498,095,090 Commercial 5,743 1,087,286,492 Governmental 485 252,732,319 Page 2 of 20

2010 MWCOG Electricity Consumption by Jurisdiction Jurisdiction Arlington TOTAL 83,663 3,437,983,871 Dominion Residential 77,607 786,284,489 Commercial 5,063 1,889,347,816 Governmental 993 762,351,566 Jurisdiction Fairfax TOTAL 399,668 13,619,448,948 Dominion Residential 341,677 4,974,008,728 Commercial 28,183 5,833,457,315 Governmental 3,433 2,208,623,042 NOVEC Residential 24,931 392,133,944 Residential Government 52 448,171 Commercial 1,232 142,741,827 Commercial Government 160 68,035,921 Jurisdiction Fairfax City TOTAL 10,141 325,151,095 Dominion Residential 7,936 103,141,548 Commercial 2,025 198,132,705 Governmental 180 23,876,842 Jurisdiction Falls Church TOTAL 5,055 139,514,956 Dominion Residential 4,197 50,266,871 Commercial 808 84,610,734 Governmental 50 4,637,351 Jurisdiction Loudoun TOTAL 123,279 4,743,592,509 Dominion Residential 88,542 1,379,367,384 Commercial 9,843 2,627,320,635 Governmental 837 217,793,235 NOVEC Residential 22,336 364,063,985 Residential Government 3 99,283 Commercial 1,587 102,602,375 Commercial Government 131 52,345,612 Page 3 of 20

2010 MWCOG Electricity Consumption by Jurisdiction Jurisdiction Manassas TOTAL 15,103 815,412,203 Manassas Residential 12,641 185,559,008 Commercial 2,347 204,430,889 3 414,583,048 Government 111 10,839,113 NOVEC Commercial 1 145 Jurisdiction Manassas Park TOTAL 5,241 79,257,026 NOVEC Residential 4,644 50,857,923 Residential Government 1 7,904 Commercial 560 18,526,424 Commercial Government 36 9,864,775 Jurisdiction Prince William TOTAL 150,904 3,826,063,907 Dominion Residential 67,171 984,883,626 Commercial 6,064 432,839,717 Governmental 658 265,291,991 NOVEC Residential 70,895 1,109,712,182 Residential Government 59 765,669 Commercial 5,413 858,538,454 Commercial Government 644 174,032,268 Jurisdiction Region TOTAL 33 168,203,179 Dominion 33 168,203,179 *NOTE: For total kwh add residential, commercial, and government use. For total accounts add residential and commercial accounts only. Government accounts are included in residential and commercial totals. Page 4 of 20

2010 MWCOG Natural Gas Consumption by Jurisdiction Jurisdiction DC TOTAL 156,851 290,223,970 Washington Gas Residential 144,145 101,180,616 Commercial 9,611 69,949,711 187 87,518,849 Group Metered Apartments 2,908 31,574,794 Jurisdiction Frederick TOTAL 31,690 52,037,130 Washington Gas Residential 28,360 18,866,150 Commercial 3,289 25,439,495 8 7,250,558 Group Metered Apartments 33 480,927 Jurisdiction Montgomery TOTAL 218,463 331,196,226 Constellation Residential 36 34,215 Commercial/ 1 11,786 Washington Gas Residential 207,732 176,611,643 Commercial 10,597 83,982,674 97 51,713,279 Group Metered Apartments 1,504 18,842,629 Jurisdiction Prince George's TOTAL 187,788 265,119,348 Constellation Residential 5,667 4,763,677 Commercial/ 796 6,645,735 Washington Gas Residential 168,255 132,125,009 Commercial 10,485 76,728,011 106 17,122,414 Group Metered Apartments 2,479 27,734,502 Jurisdiction Alexandria TOTAL 36,142 44,906,393 Washington Gas Residential 32,991 19,858,196 Commercial 2,491 13,275,456 31 4,694,474 Group Metered Apartments 629 7,078,267 Jurisdiction Arlington TOTAL 51,447 72,709,504 Washington Gas Residential 48,596 31,403,278 Commercial 2,117 19,643,581 40 13,705,561 Group Metered Apartments 694 7,957,084 Page 5 of 20

2010 MWCOG Natural Gas Consumption by Jurisdiction Jurisdiction Fairfax TOTAL 216,114 262,259,706 Washington Gas Residential 189,451 157,803,928 Commercial 8,777 54,529,982 40 13,705,561 Group Metered Apartments 1,234 14,120,342 Columbia Gas Residential 15,669 9,086,939 Commercial 867 7,486,299 2 203,438 Government 74 5,323,216 Jurisdiction Fairfax City TOTAL 7,488 13,055,089 Washington Gas Residential 7,042 8,563,119 Commercial 407 2,797,031 2 1,355,901 Group Metered Apartments 37 339,038 Jurisdiction Falls Church TOTAL 3,891 5,855,104 Washington Gas Residential 3,497 3,233,779 Commercial 346 1,521,618 2 251,469 Group Metered Apartments 46 848,238 Jurisdiction Loudoun TOTAL 68,617 66,665,380 Washington Gas Residential 63,356 49,195,908 Commercial 3,022 15,136,253 Group Metered Apartments 12 268,650 Columbia Gas Residential 2,176 1,639,805 Commercial 51 424,764 Government Jurisdiction Manassas TOTAL 6,433 12,835,066 Columbia Gas Residential 5,650 4,355,333 Commercial 742 7,144,226 1 673,708 Government 40 661,799 Page 6 of 20

2010 MWCOG Natural Gas Consumption by Jurisdiction Jurisdiction Manassas Park TOTAL 2,592 2,138,191 Washington Gas Residential 799 549,472 Commercial 20 97,682 Group Metered Apartments Columbia Gas Residential 1,641 1,042,928 Commercial 129 357,043 0.4 54,891 Government 3 36,175 Jurisdiction Prince William TOTAL 81,142 78,329,882 Washington Gas Residential 63,901 48,351,421 Commercial 2,312 11,859,699 Group Metered Apartments 174 1,695,223 Columbia Gas Residential 13,731 10,560,050 Commercial 982 4,350,811 6 1,174,744 Government 37 337,933 * Accounts and therms assigned by zip code. If a zip code falls in more than one jurisdiction it is applied proportionally. Page 7 of 20

* District of Columbia Pepco* Residential 226,272 1,891,782,070 Commercial 24,946 6,529,129,128 Government 3,039 3,117,711,236 TOTAL 254,257 11,538,622,434 Washington Gas Residential 144,145 101,180,616 Commercial 9,611 69,949,711 187 87,518,849 Group Metered Apartments 2,908 31,574,794 TOTAL 156,851 290,223,970 *NOTE: For ** Accounts and therms assigned by zip code. If a zip code falls in more than one jurisdiction it is applied proportionally.

Frederick County Potomac Edison Residential 87,364 1,419,265,354 Government 589 325,978,590 Commercial 9,636 815,010,761 769 556,752,879 Lighting 1,452 7,624,496 TOTAL 99,810 3,124,632,080 Washington Gas Residential 28,360 18,866,150 Commercial 3,289 25,439,495 8 7,250,558 Group Metered Apartments 33 480,927 TOTAL 31,690 52,037,130 * Accounts and therms assigned by zip code. If a zip code falls in more than one jurisdiction it is applied proportionally.

* Montgomery County Potomac Edison Residential 25,955 404,819,630 Government 71 28,866,453 Commercial 1,881 178,520,170 194 46,780,720 Lighting 334 5,976,957 Constellation Commercial/ 883 64,308,122 Residential 11,465 189,813,552 Pepco* Residential 279,790 3,504,882,238 Commercial 24,752 4,358,337,377 Government 2,147 1,410,510,740 TOTAL 347,472 10,192,815,959 Constellation Residential 36 34,215 Commercial/ 1 11,786 Washington Gas Residential 207,732 176,611,643 Commercial 10,597 83,982,674 97 51,713,279 Group Metered Apartments 1,504 18,842,629 TOTAL 219,967 331,196,226 *NOTE: For total kwh add residential, commercial, and government use. For total accounts add residential and commercial accounts only. Government accounts are included in residential and commercial totals. ** Accounts and therms assigned by zip code. If a zip code falls in more than one jurisdiction it is applied proportionally.

* Prince George's County Constellation Residential 65,073 967,694,233 Commercial/ 6,477 968,463,829 Pepco* Residential 201,503 2,289,795,156 Commercial 19,560 2,406,014,908 Government 1,719 1,198,042,933 TOTAL 294,332 7,830,011,059 Constellation Residential 5,667 4,763,677 Commercial/ 796 6,645,735 Washington Gas Residential 168,255 132,125,009 Commercial 40,485 76,728,011 106 17,122,414 Group Metered Apartments 2,479 27,734,502 TOTAL 217,788 265,119,348 *NOTE: For total kwh add residential, commercial, and government use. For total accounts add residential and commercial accounts only. Government accounts are included in residential and commercial totals. ** Accounts and therms assigned by zip code. If a zip code falls in more than one jurisdiction it is applied proportionally.

City of Alexandria Dominion Residential 50,186 498,095,090 Commercial 5,743 1,087,286,492 Governmental 485 252,732,319 TOTAL 56,414 1,838,113,901 Washington Gas Residential 32,991 19,858,196 Commercial 2,491 13,275,456 31 4,694,474 Group Metered Apartments 629 7,078,267 TOTAL 36,142 44,906,393 Electricity Dominion Northern Virginia 33 168,203,179 * Accounts and therms assigned by zip code. If a zip code falls in more than one jurisdiction it is applied proportionally.

Arlington County Dominion Residential 77,607 786,284,489 Commercial 5,063 1,889,347,816 Governmental 993 762,351,566 TOTAL 83,663 3,437,983,871 Washington Gas Residential 48,596 31,403,278 Commercial 2,117 19,643,581 40 13,705,561 Group Metered Apartments 694 7,957,084 TOTAL 51,447 72,709,504 Electricity Dominion Northern Virginia 33 168,203,179 * Accounts and therms assigned by zip code. If a zip code falls in more than one jurisdiction it is applied proportionally.

Fairfax County Dominion Residential 341,677 4,974,008,728 Commercial 28,183 5,833,457,315 Governmental 3,433 2,208,623,042 NOVEC Commercial 1,232 142,741,827 Commercial Government 160 68,035,921 Residential 24,931 392,133,944 Residential Government 52 448,171 TOTAL 399,668 13,619,448,948 Washington Gas Residential 189,451 157,803,928 Commercial 8,777 54,529,982 40 13,705,561 Group Metered Apartments 1,234 14,120,342 Columbia Gas Residential 15,669 9,086,939 Commercial 867 7,486,299 2 203,438 Government 74 5,323,216 TOTAL 216,114 262,259,706 Electricity Dominion Northern Virginia 33 168,203,179 * Accounts and therms assigned by zip code. If a zip code falls in more than one jurisdiction it is applied proportionally.

City of Fairfax Dominion Residential 7,936 103,141,548 Commercial 2,025 198,132,705 Governmental 180 23,876,842 TOTAL 10,141 325,151,095 Washington Gas Residential 7,042 8,563,119 Commercial 407 2,797,031 2 1,355,901 Group Metered Apartments 37 339,038 TOTAL 7,488 13,055,089 Electricity Dominion Northern Virginia 33 168,203,179 * Accounts and therms assigned by zip code. If a zip code falls in more than one jurisdiction it is applied proportionally.

City of Falls Church Dominion Residential 4,197 50,266,871 Commercial 808 84,610,734 Governmental 50 4,637,351 TOTAL 5,055 139,514,956 Washington Gas Residential 3,497 3,233,779 Commercial 346 1,521,618 2 251,469 Group Metered Apartments 46 848,238 TOTAL 3,891 5,855,104 Electricity Dominion Northern Virginia 33 168,203,179 * Accounts and therms assigned by zip code. If a zip code falls in more than one jurisdiction it is applied proportionally.

Loudoun County Dominion Residential 88,542 1,379,367,384 Commercial 9,843 2,627,320,635 Governmental 837 217,793,235 NOVEC Commercial 1,587 102,602,375 Commercial Government 131 52,345,612 Residential 22,336 364,063,985 Residential Government 3 99,283 TOTAL 123,279 4,743,592,509 Washington Gas Residential 63,356 49,195,908 Commercial 3,022 15,136,253 Group Metered Apartments 12 268,650 Columbia Gas Residential 2,176 1,639,805 Commercial 51 424,764 Government TOTAL 68,617 66,665,380 Electricity Dominion Northern Virginia 33 168,203,179 * Accounts and therms assigned by zip code. If a zip code falls in more than one jurisdiction it is applied proportionally.

City of Manassas Manassas Residential 12,641 185,559,008 Commercial 2,347 204,430,889 3 414,583,048 Government 111 10,839,113 NOVEC Commercial 1 145 TOTAL 15,103 815,412,203 Columbia Gas Residential 5,650 4,355,333 Commercial 742 7,144,226 1 673,708 Government 40 661,799 TOTAL 6,433 12,835,066 * Accounts and therms assigned by zip code. If a zip code falls in more than one jurisdiction it is applied proportionally.

City of Manassas Park NOVEC Commercial 560 18,526,424 Commercial Government 36 9,864,775 Residential 4,644 50,857,923 Residential Government 1 7,904 TOTAL 5,241 79,257,026 Washington Gas Residential 799 549,472 Commercial 20 97,682 Group Metered Apartments Columbia Gas Residential 1,641 1,042,928 Commercial 129 357,043 0.4 54,891 Government 3 36,175 TOTAL 2,592 2,138,191 * Accounts and therms assigned by zip code. If a zip code falls in more than one jurisdiction it is applied proportionally.

Prince William County Dominion Residential 67,171 984,883,626 Commercial 6,064 432,839,717 Governmental 658 265,291,991 NOVEC Commercial 5,413 858,538,454 Commercial Government 644 174,032,268 Residential 70,895 1,109,712,182 Residential Government 59 765,669 TOTAL 150,904 3,826,063,907 Washington Gas Residential 63,901 48,351,421 Commercial 2,312 11,859,699 Group Metered Apartments 174 1,695,223 Columbia Gas Residential 13,731 10,560,050 Commercial 982 4,350,811 6 1,174,744 Government 37 337,933 TOTAL 81,142 78,329,882 Electricity Dominion Northern Virginia 33 168,203,179 * Accounts and therms assigned by zip code. If a zip code falls in more than one jurisdiction it is applied proportionally.