| Distribution System
Power Supply
Meralco gets its bulk supply from the state-owned National Power Corporation (NPC) and from the following Independent Power Producers (IPPs):
- Duracom
- First Gas Power
- Quezon Power
Power is received at 230 kv and 115 kv at 11 major delivery points and delivered to the customers through the 34.5 kv, 13.8 kv and 6.24 kv & below distribution systems.
From 2005 to 2009, the company has earmarked P27.683 billion for system upgrading and expansion.
Power Network
A total of 114 substations with a combined capacity of 12,051 MVA distribute power through its 14,619 circuit kilometers of substransmission and distribution lines.
The 114 substations consist of the following:
- 6 Subtransmission
- 66 Major Distribution
- 42 Distribution
Distribution is predominantly an overhead radial system with provision for interconnection, but there are pockets of underground and secondary network systems.
Primary distribution voltages are mainly 34.5 kV wye grounded, 13.8 kV delta, 13.2 kV wye grounded, 8.3 kV wye grounded, 6.24 kV wye grounded and 4.8 kV delta. Utilization voltages are 230 volts single-phase or three-phase and 460 volts. System frequency is 60 Hz.
Power System Data
| Lines |
Number of Circuits |
| Subtransmission (115kV & 69kV) |
80
|
| Distribution (Primary) |
649 |
Total |
729 |
| Substations |
Number |
Total Capacity (MVA) |
| Subtransmission
|
6 |
2450 |
| Major Distribution |
66 |
8,670 |
Distribution |
42 |
931 |
| Total |
114 |
12,051 |
|
Transformers |
Number |
Total Capacity (MVA) |
| Power
|
119 |
12,051 |
|
Distribution |
132,244 |
10,782 |
|
