| 2004 Gross Power Generation | |||||||||||||
| (in MWh) | |||||||||||||
| LUZON | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | Total |
| Coal | 1,194,320 | 1,057,591 | 897,482 | 1,281,526 | 1,465,235 | 1,319,619 | 1,207,650 | 1,354,195 | 1,386,935 | 1,425,609 | 1,512,172 | 1,446,001 | 15,548,335 |
| Oil-based | 238,707 | 498,372 | 537,789 | 546,112 | 509,713 | 358,554 | 286,471 | 254,652 | 292,493 | 437,279 | 366,017 | 264,657 | 4,590,814 |
| Combined Cycle | 10,549 | 129,145 | 144,978 | 151,170 | 115,063 | 34,035 | 2,774 | - | 20,542 | 85,559 | 33,862 | 10,760 | 738,437 |
| Diesel | 171,086 | 264,761 | 249,660 | 262,954 | 242,472 | 229,691 | 192,752 | 192,046 | 200,188 | 242,924 | 236,248 | 203,411 | 2,688,194 |
| Gas Turbine | - | 78 | - | - | 42 | 63 | - | - | - | - | - | - | 183 |
| Oil Thermal | 57,072 | 104,388 | 143,150 | 131,987 | 152,136 | 94,765 | 90,944 | 62,606 | 71,763 | 108,796 | 95,906 | 50,486 | 1,164,000 |
| Natural Gas | 1,036,999 | 1,116,506 | 1,260,386 | 1,262,318 | 1,115,044 | 1,197,927 | 1,097,526 | 935,836 | 863,428 | 890,087 | 909,039 | 699,370 | 12,384,467 |
| Geothermal | 150,288 | 174,711 | 179,211 | 244,409 | 235,645 | 330,544 | 321,047 | 314,293 | 312,347 | 267,981 | 241,940 | 261,002 | 3,033,417 |
| Hydro | 298,833 | 275,077 | 249,145 | 167,549 | 167,542 | 278,276 | 437,346 | 591,765 | 661,335 | 365,932 | 301,744 | 502,334 | 4,296,879 |
| Total Generation | 2,919,147 | 3,122,258 | 3,124,013 | 3,501,913 | 3,493,179 | 3,484,920 | 3,350,040 | 3,450,740 | 3,516,538 | 3,386,887 | 3,330,912 | 3,173,363 | 39,853,911 |
| VISAYAS | |||||||||||||
| Coal | 48,945 | 54,046 | 56,265 | 61,754 | 49,747 | 48,442 | 47,140 | 50,983 | 62,666 | 57,570 | 56,941 | 51,579 | 646,077 |
| Oil-based | 162,101 | 155,975 | 157,402 | 170,361 | 175,598 | 169,479 | 160,873 | 165,063 | 175,863 | 167,983 | 176,480 | 160,531 | 1,997,708 |
| Combined Cycle | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Diesel | 124,307 | 125,107 | 132,453 | 146,183 | 151,858 | 149,313 | 144,091 | 143,503 | 139,822 | 128,427 | 138,595 | 125,722 | 1,649,383 |
| Gas Turbine | 3,643 | 6,261 | 7,802 | 13,125 | 13,630 | 8,583 | 6,177 | 6,741 | 4,482 | 3,326 | 5,656 | 2,668 | 82,094 |
| Oil Thermal | 34,151 | 24,607 | 17,147 | 11,052 | 10,110 | 11,582 | 10,604 | 14,819 | 31,558 | 36,229 | 32,229 | 32,142 | 266,231 |
| Natural Gas | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Geothermal | 519,955 | 545,766 | 509,476 | 559,506 | 541,263 | 582,867 | 552,988 | 518,289 | 521,857 | 485,470 | 545,614 | 455,266 | 6,338,317 |
| Hydro | 3,996 | 3,561 | 3,190 | 2,134 | 1,991 | 2,633 | 3,139 | 3,182 | 2,269 | 3,717 | 2,115 | 2,350 | 34,277 |
| Total Generation | 734,997 | 759,347 | 726,333 | 793,754 | 768,599 | 803,420 | 764,140 | 737,518 | 762,655 | 714,739 | 781,151 | 669,727 | 9,016,379 |
| MINDANAO | |||||||||||||
| Coal | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Oil-based | 131,028 | 155,211 | 153,213 | 183,608 | 198,378 | 182,045 | 152,930 | 119,350 | 137,581 | 124,467 | 196,458 | 181,531 | 1,915,799 |
| Combined Cycle | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Diesel | 131,015 | 155,207 | 153,190 | 183,605 | 198,261 | 182,026 | 152,923 | 119,339 | 137,528 | 124,446 | 196,442 | 181,519 | 1,915,500 |
| Gas Turbine | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Oil | 13 | 4 | 23 | 4 | 116 | 19 | 7 | 10 | 53 | 21 | 16 | 13 | 299 |
| Natural Gas | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Geothermal | 76,271 | 77,672 | 70,222 | 75,853 | 74,573 | 78,421 | 75,713 | 78,801 | 78,254 | 76,019 | 72,695 | 75,322 | 909,815 |
| Hydro | 371,583 | 350,175 | 317,605 | 338,120 | 305,713 | 325,207 | 341,421 | 399,206 | 408,163 | 396,384 | 370,289 | 337,660 | 4,261,525 |
| Total Generation | 578,881 | 583,058 | 541,040 | 597,581 | 578,664 | 585,673 | 570,064 | 597,357 | 623,997 | 596,869 | 639,442 | 594,513 | 7,087,140 |
| Total PHILIPPINES | |||||||||||||
| Coal | 1,243,265 | 1,111,637 | 953,747 | 1,343,280 | 1,514,982 | 1,368,061 | 1,254,789 | 1,405,178 | 1,449,602 | 1,483,178 | 1,569,113 | 1,497,580 | 16,194,412 |
| Oil-based | 531,836 | 809,558 | 848,403 | 900,081 | 883,689 | 710,077 | 600,273 | 539,065 | 605,936 | 729,728 | 738,955 | 606,720 | 8,504,321 |
| Combined Cycle | 10,549 | 129,145 | 144,978 | 151,170 | 115,063 | 34,035 | 2,774 | - | 20,542 | 85,559 | 33,862 | 10,760 | 738,437 |
| Diesel | 426,408 | 545,075 | 535,303 | 592,742 | 592,591 | 561,031 | 489,767 | 454,888 | 477,538 | 495,797 | 571,285 | 510,652 | 6,253,077 |
| Gas Turbine | 3,643 | 6,339 | 7,802 | 13,125 | 13,673 | 8,646 | 6,177 | 6,741 | 4,482 | 3,326 | 5,656 | 2,668 | 82,277 |
| Oil | 91,236 | 129,000 | 160,320 | 143,043 | 162,362 | 106,366 | 101,556 | 77,436 | 103,374 | 145,046 | 128,152 | 82,640 | 1,430,529 |
| Natural Gas | 1,036,999 | 1,116,506 | 1,260,386 | 1,262,318 | 1,115,044 | 1,197,927 | 1,097,526 | 935,836 | 863,428 | 890,087 | 909,039 | 699,370 | 12,384,467 |
| Geothermal | 746,514 | 798,148 | 758,909 | 879,768 | 851,481 | 991,832 | 949,748 | 911,383 | 912,458 | 829,470 | 860,249 | 791,590 | 10,281,550 |
| Hydro | 674,412 | 628,814 | 569,940 | 507,802 | 475,246 | 606,116 | 781,907 | 994,154 | 1,071,766 | 766,032 | 674,148 | 842,344 | 8,592,681 |
| Total Generation | 4,233,026 | 4,464,663 | 4,391,386 | 4,893,248 | 4,840,442 | 4,874,014 | 4,684,244 | 4,785,615 | 4,903,190 | 4,698,496 | 4,751,504 | 4,437,603 | 55,957,430 |