Updated as of: 3-10-2010 2000 Constrained operations ARE expected in the AEP, APS, BC, CE, DOM, DUQ, JC, PEP, PL, and PS zones on 03-11-2010. Constrained operations ARE expected in the AEP, APS, BC, CE, DOM, DUQ, JC, PEP, PL, and PS zones on 03-12-2010. No portion of the 600/400 MW contract is expected to be limited on 03-11-10. Data updated as of THU MAR 11 19:15:27 2010. MID ATLANTIC REGION HOUR ENDING INTEGRATED FORECAST LOAD MW Date 1 2 3 4 5 6 7 8 9 10 11 12 +-----------++-----++-----++-----++-----++-----++-----++-----++-----++-----++-----++-----++-----+ 03/11/10 am 25451 24503 24213 24302 24829 27002 31000 32655 32600 32600 32400 32300 pm 31950 31750 31336 31010 31332 32198 34274 33243 32665 31282 28991 26726 03/12/10 am 25318 24491 24100 24203 24776 26667 29718 31550 32262 32645 32787 32695 pm 32355 32057 31670 31462 31999 33192 34500 33813 32695 31581 29904 28025 03/13/10 am 26501 25398 24765 24494 24597 25261 26370 27547 29116 30277 30739 30627 pm 30255 29690 29218 29109 29556 30685 32133 31883 31256 30325 28770 27096 03/14/10 am 25563 24474 23603 23636 24103 24938 25819 27268 28417 29023 29262 pm 29285 28976 28631 28634 29315 30843 32577 32632 32047 30786 28914 27033 03/15/10 am 25681 24870 24532 24650 25365 27551 30977 32861 33384 33608 33661 33494 pm 33130 32800 32404 32315 32962 34565 36214 35894 34909 33222 30808 28466 03/16/10 am 26993 26167 25823 25879 26610 28759 32202 33807 33799 33522 33333 33001 pm 32618 32360 31992 31907 32509 34158 36021 35720 34941 33429 31013 28688 03/17/10 am 27298 26523 26184 26324 27114 29429 33065 34633 34377 33918 33539 33093 pm 32566 32181 31722 31584 32239 34036 35940 35680 34968 33443 31097 28767 AP HOUR ENDING INTEGRATED FORECAST LOAD MW Date 1 2 3 4 5 6 7 8 9 10 11 12 +-----------++-----++-----++-----++-----++-----++-----++-----++-----++-----++-----++-----++-----+ 03/11/10 am 4746 4637 4562 4581 4704 5043 5735 5800 5700 5575 5566 5430 pm 5385 5315 5163 5015 5173 5286 5729 5841 5716 5510 5162 4779 03/12/10 am 4507 4376 4331 4333 4409 4712 5199 5425 5462 5459 5472 5424 pm 5360 5311 5251 5237 5337 5571 5742 5693 5515 5318 5066 4728 03/13/10 am 4438 4288 4239 4205 4235 4350 4519 4712 4944 5088 5162 5122 pm 5037 4941 4885 4868 4966 5206 5383 5393 5266 5112 4878 4611 03/14/10 am 4413 4278 4188 4216 4303 4431 4608 4850 5011 5074 5085 pm 5080 5018 4985 5006 5153 5467 5702 5717 5591 5382 5120 4868 03/15/10 am 4638 4597 4590 4616 4756 5087 5635 5865 5873 5824 5811 5737 pm 5647 5576 5483 5451 5587 5926 6215 6265 6131 5872 5557 5263 03/16/10 am 5034 4948 4911 4945 5077 5435 5937 6143 6067 5952 5869 5778 pm 5675 5570 5483 5467 5625 6007 6302 6315 6173 5976 5644 5297 03/17/10 am 5138 5047 5037 5105 5233 5610 6169 6361 6250 6065 5953 5824 pm 5690 5617 5520 5487 5653 6047 6340 6345 6229 6015 5714 5361 AEP HOUR ENDING INTEGRATED FORECAST LOAD MW Date 1 2 3 4 5 6 7 8 9 10 11 12 +-----------++-----++-----++-----++-----++-----++-----++-----++-----++-----++-----++-----++-----+ 03/11/10 am 12735 12365 12671 12646 12899 13802 15625 16175 15625 15600 15655 15425 pm 15225 15115 14386 14735 14680 15001 15296 15768 15495 15054 14258 13382 03/12/10 am 12542 12196 12027 12000 12201 12882 14131 14838 14819 14747 14724 14647 pm 14542 14480 14385 14271 14349 14795 15156 15200 14735 14354 13765 12996 03/13/10 am 12349 11934 11728 11670 11734 12025 12442 12978 13426 13689 13722 13658 pm 13453 13251 13142 13103 13271 13761 14322 14547 14227 13925 13458 12878 03/14/10 am 12317 12049 11841 11928 12109 12436 12895 13399 13665 13584 13539 pm 13517 13422 13278 13305 13573 14265 14973 15323 15072 14719 14236 13671 03/15/10 am 13169 13000 12883 12992 13381 14259 15801 16653 16667 16557 16436 16188 pm 16036 15856 15627 15424 15512 15989 16599 16880 16655 16212 15433 14570 03/16/10 am 13931 13663 13477 13506 13797 14596 16041 16749 16577 16368 16209 15996 pm 15746 15603 15369 15217 15373 15880 16540 16843 16655 16275 15588 14693 03/17/10 am 14118 13830 13654 13703 14000 14790 16222 16895 16762 16491 16232 15954 pm 15706 15529 15287 15145 15281 15864 16480 16731 16606 16176 15500 14667 DAYTON HOUR ENDING INTEGRATED FORECAST LOAD MW Date 1 2 3 4 5 6 7 8 9 10 11 12 +-----------++-----++-----++-----++-----++-----++-----++-----++-----++-----++-----++-----++-----+ 03/11/10 am 1615 1577 1516 1507 1560 1675 1975 2057 2071 2067 2100 2088 pm 2063 2070 2014 1963 2016 2017 2041 2028 2006 1939 1806 1671 03/12/10 am 1580 1513 1473 1461 1486 1593 1802 1931 1946 1972 1992 1981 pm 1973 1964 1942 1906 1894 1907 1929 1939 1879 1818 1723 1604 03/13/10 am 1513 1448 1414 1395 1402 1443 1519 1592 1662 1717 1739 1718 pm 1686 1653 1630 1622 1633 1680 1751 1795 1741 1698 1627 1546 03/14/10 am 1476 1424 1389 1394 1418 1465 1522 1594 1654 1674 1683 pm 1691 1672 1661 1662 1688 1774 1871 1919 1872 1813 1741 1668 03/15/10 am 1601 1567 1560 1568 1615 1759 2005 2142 2156 2163 2171 2151 pm 2129 2109 2078 2025 2020 2083 2167 2187 2137 2054 1930 1804 03/16/10 am 1712 1661 1635 1635 1673 1802 2032 2150 2146 2136 2132 2109 pm 2089 2072 2054 2018 2018 2083 2160 2185 2142 2061 1937 1811 03/17/10 am 1734 1681 1655 1648 1684 1811 2047 2176 2173 2161 2156 2124 pm 2096 2075 2037 1994 1989 2053 2136 2160 2109 2033 1908 1781 COMED HOUR ENDING INTEGRATED FORECAST LOAD MW Date 1 2 3 4 5 6 7 8 9 10 11 12 +-----------++-----++-----++-----++-----++-----++-----++-----++-----++-----++-----++-----++-----+ 03/11/10 am 9653 9259 8801 8650 8625 8807 9700 10625 11570 11800 12120 12198 pm 12075 12010 12304 11755 11585 11589 11675 12307 12092 11750 11215 10406 03/12/10 am 9614 9087 8730 8555 8500 8701 9290 10217 10804 11103 11262 11398 pm 11402 11355 11381 11311 11218 11387 11713 12000 11656 11361 10991 10350 03/13/10 am 9671 9103 8743 8505 8379 8406 8578 8827 9058 9449 9735 9923 pm 9983 9954 9875 9861 9918 10239 10666 11069 10812 10575 10285 9786 03/14/10 am 9382 8909 8391 8272 8261 8346 8444 8514 8796 9047 9255 pm 9413 9498 9568 9660 9826 10324 10966 11419 11172 10879 10555 9969 03/15/10 am 9503 9106 8867 8770 8739 8993 9630 10549 11130 11439 11559 11711 pm 11726 11737 11771 11732 11745 12056 12586 12920 12530 12115 11606 10779 03/16/10 am 10116 9580 9262 9073 9079 9271 9961 10961 11538 11723 11809 11899 pm 11868 11868 11864 11822 11841 12141 12623 12907 12611 12334 11808 10977 03/17/10 am 10318 9762 9385 9197 9147 9312 9930 10837 11395 11660 11782 11901 pm 11894 11848 11863 11821 11805 11969 12342 12672 12405 12096 11600 10813 DUQUESNE HOUR ENDING INTEGRATED FORECAST LOAD MW Date 1 2 3 4 5 6 7 8 9 10 11 12 +-----------++-----++-----++-----++-----++-----++-----++-----++-----++-----++-----++-----++-----+ 03/11/10 am 1300 1298 1272 1265 1316 1391 1545 1570 1625 1652 1686 1668 pm 1690 1687 1670 1670 1666 1686 1732 1706 1654 1582 1476 1369 03/12/10 am 1305 1262 1242 1239 1266 1342 1474 1583 1627 1661 1686 1684 pm 1686 1687 1672 1649 1650 1694 1726 1704 1636 1574 1484 1394 03/13/10 am 1319 1266 1241 1229 1234 1263 1302 1349 1404 1463 1494 1498 pm 1496 1479 1462 1451 1465 1525 1585 1595 1557 1521 1450 1370 03/14/10 am 1306 1251 1214 1220 1245 1276 1313 1352 1411 1449 1477 pm 1491 1494 1495 1507 1542 1615 1679 1683 1634 1583 1503 1411 03/15/10 am 1349 1309 1292 1298 1331 1409 1551 1653 1693 1722 1744 1749 pm 1744 1739 1715 1707 1722 1791 1835 1826 1762 1688 1577 1471 03/16/10 am 1411 1360 1339 1339 1368 1444 1575 1666 1698 1725 1742 1746 pm 1734 1731 1710 1702 1716 1777 1833 1823 1768 1702 1599 1495 03/17/10 am 1431 1388 1370 1373 1410 1483 1613 1697 1723 1744 1762 1763 pm 1750 1752 1721 1710 1716 1788 1844 1828 1773 1716 1612 1510 WESTERN REGION HOUR ENDING INTEGRATED FORECAST LOAD MW Date 1 2 3 4 5 6 7 8 9 10 11 12 +-----------++------++------++------++------++------++------++------++------++------++------++------++------+ 03/11/10 am 30049 29136 28822 28649 29104 30718 34580 36227 36591 36694 37127 36809 pm 36438 36197 35537 35138 35120 35579 36473 37650 36963 35835 33917 31607 03/12/10 am 29548 28434 27803 27588 27862 29230 31896 33994 34658 34942 35136 35134 pm 34963 34797 34631 34374 34448 35354 36266 36536 35421 34425 33029 31072 03/13/10 am 29290 28039 27365 27004 26984 27487 28360 29458 30494 31406 31852 31919 pm 31655 31278 30994 30905 31253 32411 33707 34399 33603 32831 31698 30191 03/14/10 am 28894 27911 27023 27030 27336 27954 28782 29709 30537 30828 31039 pm 31192 31104 30987 31140 31782 33445 35191 36061 35341 34376 33155 31587 03/15/10 am 30260 29579 29192 29244 29822 31507 34622 36862 37519 37705 37721 37536 pm 37282 37017 36674 36339 36586 37845 39402 40078 39215 37941 36103 33887 03/16/10 am 32204 31212 30624 30498 30994 32548 35546 37669 38026 37904 37761 37528 pm 37112 36844 36480 36226 36573 37888 39458 40073 39349 38348 36576 34273 03/17/10 am 32739 31708 31101 31026 31474 33006 35981 37966 38303 38121 37885 37566 pm 37136 36821 36428 36157 36444 37721 39142 39736 39122 38036 36334 34132 DOMINION HOUR ENDING INTEGRATED FORECAST LOAD MW Date 1 2 3 4 5 6 7 8 9 10 11 12 +-----------++-----++-----++-----++-----++-----++-----++-----++-----++-----++-----++-----++-----+ 03/11/10 am 7721 7562 7437 7466 7717 8580 10075 10375 9945 9905 9860 9779 pm 9825 9745 9485 9484 9596 9866 10554 10719 10508 10038 9274 8532 03/12/10 am 8145 7892 7800 7831 8097 8838 10026 10548 10468 10432 10401 10279 pm 10119 10001 9864 9804 9936 10337 10700 10513 10207 9852 9333 8750 03/13/10 am 8329 7997 7834 7774 7835 8072 8433 8892 9387 9715 9782 9669 pm 9470 9195 8980 8897 8968 9307 9741 9773 9653 9408 8944 8439 03/14/10 am 8121 7866 7788 7903 8156 8492 8894 9368 9630 9616 9460 pm 9352 9220 9077 9051 9258 9807 10393 10503 10378 9984 9370 8766 03/15/10 am 8447 8283 8288 8414 8804 9709 11006 11505 11281 11064 10916 10718 pm 10514 10365 10221 10202 10432 11049 11704 11730 11512 11033 10279 9561 03/16/10 am 9262 9084 9069 9191 9568 10485 11757 12122 11694 11249 10950 10674 pm 10429 10256 10092 10047 10248 10842 11544 11611 11435 11029 10307 9604 03/17/10 am 9319 9188 9223 9385 9812 10772 12093 12401 11906 11426 11077 10798 pm 10531 10333 10173 10136 10371 11017 11718 11757 11600 11168 10452 9759 SOUTHERN REGION HOUR ENDING INTEGRATED FORECAST LOAD MW Date 1 2 3 4 5 6 7 8 9 10 11 12 +-----------++------++------++------++------++------++------++------++------++------++------++------++------+ 03/11/10 am 7721 7562 7437 7466 7717 8580 10075 10375 9945 9905 9860 9779 pm 9825 9745 9485 9484 9596 9866 10554 10719 10508 10038 9274 8532 03/12/10 am 8145 7892 7800 7831 8097 8838 10026 10548 10468 10432 10401 10279 pm 10119 10001 9864 9804 9936 10337 10700 10513 10207 9852 9333 8750 03/13/10 am 8329 7997 7834 7774 7835 8072 8433 8892 9387 9715 9782 9669 pm 9470 9195 8980 8897 8968 9307 9741 9773 9653 9408 8944 8439 03/14/10 am 8121 7866 7788 7903 8156 8492 8894 9368 9630 9616 9460 pm 9352 9220 9077 9051 9258 9807 10393 10503 10378 9984 9370 8766 03/15/10 am 8447 8283 8288 8414 8804 9709 11006 11505 11281 11064 10916 10718 pm 10514 10365 10221 10202 10432 11049 11704 11730 11512 11033 10279 9561 03/16/10 am 9262 9084 9069 9191 9568 10485 11757 12122 11694 11249 10950 10674 pm 10429 10256 10092 10047 10248 10842 11544 11611 11435 11029 10307 9604 03/17/10 am 9319 9188 9223 9385 9812 10772 12093 12401 11906 11426 11077 10798 pm 10531 10333 10173 10136 10371 11017 11718 11757 11600 11168 10452 9759 RTO COMBINED HOUR ENDING INTEGRATED FORECAST LOAD MW Date 1 2 3 4 5 6 7 8 9 10 11 12 +-----------++------++------++------++------++------++------++------++------++------++------++------++------+ 03/11/10 am 63221 61201 60472 60417 61650 66300 75655 79257 79136 79199 79387 78888 pm 78213 77692 76358 75632 76048 77643 81301 81612 80136 77155 72182 66865 03/12/10 am 63011 60817 59703 59622 60735 64735 71640 76092 77388 78019 78324 78108 pm 77437 76855 76165 75640 76383 78883 81466 80862 78323 75858 72266 67847 03/13/10 am 64120 61434 59964 59272 59416 60820 63163 65897 68997 71398 72373 72215 pm 71380 70163 69192 68911 69777 72403 75581 76055 74512 72564 69412 65726 03/14/10 am 62578 60251 58414 58569 59595 61384 63495 66345 68584 69467 69761 pm 69829 69300 68695 68825 70355 74095 78161 79196 77766 75146 71439 67386 03/15/10 am 64388 62732 62012 62308 63991 68767 76605 81228 82184 82377 82298 81748 pm 80926 80182 79299 78856 79980 83459 87320 87702 85636 82196 77190 71914 03/16/10 am 68459 66463 65516 65568 67172 71792 79505 83598 83519 82675 82044 81203 pm 80159 79460 78564 78180 79330 82888 87023 87404 85725 82806 77896 72565 03/17/10 am 69356 67419 66508 66735 68400 73207 81139 85000 84586 83465 82501 81457 pm 80233 79335 78323 77877 79054 82774 86800 87173 85690 82647 77883 72658