WikiProject Power networks/Philippines
This page aims to coordinate the efforts of mapping electricity-related objects in the Philippines.
- 1 Power Grid Status
- 2 Guidelines
- 3 Power lines mapped
- 4 Components of power lines
- 5 Number of towers that were painted with aluminum or zinc paint
- 6 Number of retired structures
- 7 Line and structure references
- 8 Abbreviation of substations and power plants
- 9 Mapped transmission and subtransmission lines constructed by each companies
- 10 Power stations/substations mapped
- 11 Tower configurations/designs
- 12 List of relocated or reused and retired structures
- 13 Statistics
Power Grid Status
Most power transmission lines are operated, maintained, and developed by the National Grid Corporation of the Philippines (NGCP), while power generating sites are owned by various companies. The government-owned National Transmission Corporation (TransCo), however, actually own the transmission lines and facilities that are being operated and maintained by NGCP, in accordance with Section 8 of the Electric Power Industry Reform Act (EPIRA) or Republic Act 9136 which states that no person, company, or entity other than TransCo who shall own any transmission facilities. It is currently divided into three grids: the Luzon Power Grid, the Visayas Power Grid, and the Mindanao Power Grid. They are further subdivided into dozens of transmission lines, which carry up to 500 kilo volts of energy.
Most bulk generation sites are found far from the load centers, requiring the use of long-distance transmission lines. A major power line of the Luzon Grid is the Sucat-Paco-Araneta-Balintawak transmission line, which serves Metro Manila and went into service in 2000. The Hermosa-Duhat-Balintawak transmission line, another major power line of the Luzon Grid, serves the provinces of Bataan, Pampanga, Bulacan, and Metro Manila and has been in service since 1993. The Luzon Grid is connected with the Visayas Grid via the HVDC Leyte-Luzon, a high-voltage direct current transmission line and submarine cable with a transfer capacity of 440 MW between Naga and Ormoc and was commissioned in 1998. The Visayas Grid is composed of five small grids (sub-grid) connected with submarine cables, but arranged in a radial configuration, that may disconnect one sub-grid in case a fault develop on one submarine cable interconnection. The Mindanao Grid composes of 138,000 volt transmission lines, and primarily relies on hydropower. In the future, the Visayas and Mindanao Grids will be connected through a submarine cable, which unifies the three principal grids, and between off-grid Mindoro and Luzon, to increase power reliability in the off-grid island. Many islands are still not connected to NGCP grids, relying on localized power plants and power barges owned by National Power Corporation (NAPOCOR) for supply.
Minor lines are feeders operated by distribution utilities, like the Manila Electric Company (Meralco), and local electric cooperatives/companies, which may also operate subtransmission lines between substations within their power networks and the main power grid by NGCP. The minor lines feed power from the substations to residential and industrial users (although some industrial users also feed power from the subtransmission lines operated by utilities or local electric cooperatives/companies).
National Grid Corporation of the Philippines
operator=National Grid Corporation of the Philippines
The National Grid Corporation of the Philippines (NGCP), a private company given a 50-year concession to operate and expand the Philippine power grid, operates most transmission lines in the Philippines. NGCP-operated transmission lines, with voltages of 69 kV, 115 kV, 138 kV, 230 kV, 350 kV DC, and 500 kV, connects power plants with its substations, and feeds them to utility/cooperative owned substations via sub-transmission lines (69 kV and 115 kV), although the utilities/cooperatives may own their own subtransmission lines, mostly lines once operated by NGCP.
Most major NGCP lines and substations have been mapped in Luzon, but there are still a number of gaps to be filled, such as line info (voltage, conductor count) and missing substations. Backbone power lines in Visayas are mostly mapped, but there remains a number of gaps, such as missing lines and cables, and substations, and cleanup of lines added by blocked user "bryanpiczon" and related accounts is ongoing. Progress in Mindanao is almost complete, but major lines are still incomplete, especially in Zamboanga Peninsula and Caraga.
National Transmission Corporation
owner=National Transmission Corporation
The National Transmission Corporation (TransCo) is a government-owned and controlled corporation that was created in 2001 through the Electric Power Industry Reform Act (RA 9136). It is the owner of the country's power grid that is being operated, maintained, and developed by NGCP. The company has also branches on some freeport or economic zones which serves as a power distributor on those areas, such as its Freeport Area of Bataan (FAB) branch in Mariveles, Bataan. It also operated and maintained the country's transmission facilities from March 2003 to February 2009.
National Power Corporation
operator=National Power Corporation
The National Power Corporation (NAPOCOR) is a government-owned corporation that provides power to areas that are not connected to NGCP grids, manage water resources for power generation, and to optimize the use of other power generating assets. It also operated, owned, and maintained the country's transmission lines and facilities, until the turnover of operations, ownership, and maintenance of transmission facilities to TransCo in March 1, 2003
Manila Electric Company
Manila Electric Company (Meralco) also operates a network of transmission lines, called sub-transmission lines, that uses either 115 kV or 69 kV. The sub-transmission lines feed power from large substations mainly operated by the National Grid Corporation of the Philippines to Meralco's distribution substations, which may serve a part of a city or municipality or even a whole city/municipality. Occasionally, sub-transmission lines may feed power from a power plant or link to a substation that serves a large industrial customer.
Mapping of Meralco 115 kV and 69 kV sub-transmission networks remains slow, though some lines (or portions of it) has been mapped. 34.5 kV, 13.8 kV and 4.8 kV lines is marginally covered, since they are not as very visible as many sub-transmission lines.
TODO: Add more guidelines on mapping power facilities and power lines
- Power generators/power plants are sometimes called "power stations". Do not tag them as power=station. Instead, tag them as power=plant. The generators inside would get the power=generator tag.
- Power stations are individually named (in most cases) and are called "substations" (e.g. "San Jose del Monte Substation"). Do not tag them as power=sub_station. Instead, tag them as power=substation.
- Sub-transmission lines (69 kV to 115 kV, except for two lines in Ilocos Region, which are transmission lines instead) mounted on tubular steel, concrete, or wood poles, usually shared with minor power lines and telephone/cable television lines, like those owned by the National Grid Corporation of the Philippines, Meralco and some electric cooperatives/companies on most provinces, are to tagged as power=tower(usually for H-frames and lattice structures) or power=pole(for most structures) and the specific tower or pole design, commonly flag, triangular, H-frame, or asymmetrical, depending on the arrangement of the cables and insulators on the pole, whether the insulators are mounted on a cross-arm or on the pole itself. Some utility poles have designs other than the usual cross-arm mounted insulator type, like flag, triangular, or asymmetrical (with insulators mounted on the pole or on an adaptor made from cross-arms typically found on most poles) but they should be tagged with power=pole. Insulators or cross-arms only carrying ground wires should not be considered when tagging design of a sub-transmission pole or utility pole.
- Power lines below 69 kV (i.e. all distribution lines, between 220 V and 13.8 kV or 34.5 kV) should be mapped as power=minor_line. If line has voltages higher than 69 kV (i.e. all transmission and subtransmission lines), they should be mapped as power=line. The frequency of the power grid in the Philippines is 60 Hz, except high-voltage direct current, like the HVDC Luzon Leyte, which should be tagged with frequency=0, used to mark HVDC or DC contact lines or third rail used for railways and rapid transit systems.
- Tagging a tower or line with owner=National Transmission Corporation is optional. If its danger plate sign says "TransCo Property" even though that structure/s is/are commissioned by NGCP (the purpose for this is because these transmission facilities are still government-owned) such as towers 255, 256, 266, and 267 of Hermosa-Balintawak Transmission Line, you may tag them.
- If a tower that is made of steel was painted with aluminum paint, you may tag it as colour=aluminum or colour=zinc.
Here is a list of some common voltages used in the Philippines. These include common voltages in power lines as well as secondary voltages of distribution transformers
|Type||voltage||voltage level code||description||Line characteristics||Image example|
|Distribution||110/220 or 220 (nominally 120/240 or 240)||None||Typical voltage on secondary distribution lines.||
|110/190 (nominally 120/208)||Three-phase secondary distribution voltage, usually used to feed large commercial users. Common in the provinces.||
|110/190-220 (nominally 120/208-240)||Three-phase voltage used for high-leg delta systems.||
|127/220 (nominally 139/240)||Common three-phase distribution voltage. Used by Meralco and CEPALCO.|
|254/440 (nominally 277/480)||Three-phase secondary distribution voltage, usually used to feed large commercial users. Used by Meralco and CEPALCO.||
|3620/6280||2||Distribution voltage still used on some areas of Metro Manila, and fed by the 34.5 kV system. Most of these systems are already obsoleted (customers connected to 6.28 kV systems being reconnected to the 34.5 kV system, 6.28 kV lines below 34.5 kV lines discarded, or 6.28 kV-only lines replaced by 34.5 kV lines), but still exist on parts of Manila, Pasay, Quezon City, and Parañaque.||Uses transformers with bushings on the sides instead on the top. Usually placed below 34.5 kV lines. Separate lines usually use shorter poles (mostly replaced by taller poles when converted to 34.5 kV)|
|7970/13800 (or 7620/13200)||3||Standard three-phase distribution line voltage by many electric cooperatives and other utility companies (except VECO), but also by Meralco (in northern Bulacan, southern Cavite, part of central Laguna, and Batangas City - San Pascual area). May be found under a 69 kV subtransmission line as a feeder.||
|13200/23000||none||Standard three-phase distribution line voltage by Visayan Electric Company (VECO).|
|20000/34500||4||Standard distribution voltage used by Meralco, but also used by Cagayan Electric Power and Light Company (CEPALCO) in some lines in Cagayan de Oro.||
|Subtransmission||69000||5||Typical subtransmission line voltage by NGCP and many provincial electric cooperatives. Also used by Meralco on subtransmission line in Bulacan and Batangas City and the Meralco-owned Clark Electric Distribution Company (CEDC) serving Clark Freeport.||
|Subtransmission/transmission||115000||6||Standard subtransmission voltage by Meralco, especially on Metro Manila, Laguna, Cavite, Rizal and most of Bulacan. Used also by NGCP on some subtransmission lines in Cavite and transmission lines in Ilocos Region.||
|Transmission||138000||7||Typical voltage of NGCP transmission lines in Visayas and Mindanao.|
|230000||8||Typical voltage of NGCP transmission lines in Luzon.||
|350000||Voltage used on HVDC Leyte-Luzon transmission line||
|500000||9||Typical voltage of NGCP bulk power transmission lines in Luzon.||
See WikiProject Power networks/Philippines/Operators for guidance when tagging operators of any power line in the Philippines by region.
Examples of mapping power lines and structures
Power lines mapped
Components of power lines
Number of towers that were painted with aluminum or zinc paint
Number of retired structures
Line and structure references
Abbreviation of substations and power plants
Mapped transmission and subtransmission lines constructed by each companies
Power stations/substations mapped
- SPQ2-A - Has triangular placement of insulators. Tower design is triangle.
- SPQ2-B - Has insulators facing only in one direction. Tower design is flag.
- SPR2 - Has six dead-end insulators located at both sides of a pole, and suspension clamp for optical ground wire and overhead ground wires placed between them. The tower design is anchor if it changes the direction of a line and flag if it does not change.
- DQ2 - Has six insulators on the tower's crossarms. Type of tower is suspension and number of circuits is 2.
- DR2 - Same as DQ2, but the tower uses dead-end insulators.
- STY2 - Has three insulators on its crossarms and the other three crossarms are not present on other side. Type of tower is suspension and number of circuits is 1.
- STV2 - Same as STY2, but the tower type is anchor.
- DQ - Has three insulators on one side of a tower, while the other three crossarms on its other side do not have insulators on them. Tower design is incomplete tower.
- DR - Same as DQ, but it uses dead-end insulators.
List of relocated or reused and retired structures
- Total amount of existing (operational and abandoned) and proposed mapped structures: 7,472
- Lattice towers: 349 (138 kV), 2,573 (230 kV), 698 (350 kV), 1,941 (500 kV). Total: 5,561
- Steel poles: 35 (115 kV), 1,720 (230 kV), 2 (500 kV). Total: 1,757
- Wood poles: 100 (115 kV), 1 (230 kV). Total: 101
- Portal towers: 43
- H-frame: 7
- Monopole: 2
- Cement poles: 1
- Mapped substations: 61 (NGCP), 60 (Meralco), 3 (BATELEC-I), 5 (BATELEC-II), 1 (ISECO, CAGELCO-I, Isabela-I Electric Cooperative, PELCO-II, SFELAPCO, IEEE, VECO), 2 (LUECO, Davao Light), 2 (other distribution companies)
- Amount of Meralco substations by voltage:
- 230/115 kV: 6
- 230/69 kV: 1
- 115/34.5 kV: 31
- 115/13.8 kV: 4
- 115-34.5/13.8 kV:
- 69/13.8 kV: 7
- 69-34.5/13.8 kV: 1
- 34.5/6.28 kV: 3 (remaining); 4 (retired or converted to switching station or VR facility)
- Amount of retired structures: 161 (lattice towers), 111 (steel poles), 6 (portal towers), 2 (H-frame), 2 (chainette towers). Total: 286
- Amount of painted towers: 119 (steel poles), 172 (lattice towers), 2 (portal towers). Total: 293
- Amount of reused structures: 18
- Mapped power lines: 30 (NGCP), 1 (Meralco), 2 (BATELEC-I), 5 (BATELEC-II, including lines or line section divested from NGCP in 2011), 1 (LIMA Enerzone (LIMA Utilities), all from NGCP, originally commissioned by NAPOCOR). Total: 39
- Power lines commissioned by NAPOCOR: 14 (69 kV), 6 (115 kV), 18 (138 kV), 57 (230 kV), 1 (350 kV), 4 (500 kV). Total: 100
- Power lines commissioned by TransCo: 3 (138 kV), 9 (230 kV), 1 (500 kV). Total: 13
- Power lines commissioned by NGCP: 118
- 20 kV: 2 (proposed or under construction)
- 69 kV: 3 (operational), 15 (proposed or under construction). Total: 18
- 115 kV: 2
- 138 kV: 17 (operational), 14 (proposed or under construction).Total: 31
- 230 kV: 9 (operational), 44 (proposed or under construction). Total: 53
- 350 kV: 2
- 500 kV: 13
- Power lines commissioned by Meralco: 8 (69 kV), 8 (115 kV). Total: 16
- Power lines commissioned by Batangas I Electric Cooperative: 3
- Power lines commissioned by Batangas II Electric Cooperative: 8