Participation of the private sector is vital in responding to the demands of the energy industry by investing in power generation and contributing to the needed capacity brought about by economic development.
The figure below shows players dominating the market and their areas of operation around the Philippines. Though endorsed by the government, the EPIRA Law only permits these private entities less than thirty percent share of the installed generating capacity of a grid as well as a twenty-five percent limit of shares on the national installed generating capacity. A breakdown of the percentage market share of these companies follows.

On-Grid Electrification:
Off-Grid Electrification:
| SPUG AREAS | AREAS | HOUSEHOLDS | PROVINCES | MUNICIPALITIES | BARANGAYS |
|---|---|---|---|---|---|
| Luzon | 174 | 674,621 | 16 | 118 | 2,132 |
| Visayas | 43 | 48,223 | 9 | 29 | 222 |
| Mindanao | 21 | 145,553 | 9 | 41 | 479 |
| TOTAL SPUG | 238 | 868,397 | 34 | 188 | 2833 |